Dental Cements: Substances used to bond COMPOSITE RESINS to DENTAL ENAMEL and DENTIN. These bonding or luting agents are used in restorative dentistry, ROOT CANAL THERAPY; PROSTHODONTICS; and ORTHODONTICS.Adhesives: Substances that cause the adherence of two surfaces. They include glues (properly collagen-derived adhesives), mucilages, sticky pastes, gums, resins, or latex.Methacrylates: Acrylic acids or acrylates which are substituted in the C-2 position with a methyl group.Resin Cements: Dental cements composed either of polymethyl methacrylate or dimethacrylate, produced by mixing an acrylic monomer liquid with acrylic polymers and mineral fillers. The cement is insoluble in water and is thus resistant to fluids in the mouth, but is also irritating to the dental pulp. It is used chiefly as a luting agent for fabricated and temporary restorations. (Jablonski's Dictionary of Dentistry, 1992, p159)Dental Care: The total of dental diagnostic, preventive, and restorative services provided to meet the needs of a patient (from Illustrated Dictionary of Dentistry, 1982).Bone Cements: Adhesives used to fix prosthetic devices to bones and to cement bone to bone in difficult fractures. Synthetic resins are commonly used as cements. A mixture of monocalcium phosphate, monohydrate, alpha-tricalcium phosphate, and calcium carbonate with a sodium phosphate solution is also a useful bone paste.Light-Curing of Dental Adhesives: The hardening or polymerization of bonding agents (DENTAL CEMENTS) via exposure to light.Bisphenol A-Glycidyl Methacrylate: The reaction product of bisphenol A and glycidyl methacrylate that undergoes polymerization when exposed to ultraviolet light or mixed with a catalyst. It is used as a bond implant material and as the resin component of dental sealants and composite restorative materials.Dental Bonding: An adhesion procedure for orthodontic attachments, such as plastic DENTAL CROWNS. This process usually includes the application of an adhesive material (DENTAL CEMENTS) and letting it harden in-place by light or chemical curing.Education, Dental: Use for articles concerning dental education in general.Dentin-Bonding Agents: Cements that act through infiltration and polymerization within the dentinal matrix and are used for dental restoration. They can be adhesive resins themselves, adhesion-promoting monomers, or polymerization initiators that act in concert with other agents to form a dentin-bonding system.Glass Ionomer Cements: A polymer obtained by reacting polyacrylic acid with a special anion-leachable glass (alumino-silicate). The resulting cement is more durable and tougher than others in that the materials comprising the polymer backbone do not leach out.Photoinitiators, Dental: Chemical compound used to initiate polymerization of dental resins by the use of DENTAL CURING LIGHTS. It absorbs UV light and undergoes decomposition into free radicals that initiate polymerization process of the resins in the mix. Each photoinitiator has optimum emission spectrum and intensity for proper curing of dental materials.Schools, Dental: Educational institutions for individuals specializing in the field of dentistry.Polymethacrylic Acids: Poly-2-methylpropenoic acids. Used in the manufacture of methacrylate resins and plastics in the form of pellets and granules, as absorbent for biological materials and as filters; also as biological membranes and as hydrogens. Synonyms: methylacrylate polymer; poly(methylacrylate); acrylic acid methyl ester polymer.Students, Dental: Individuals enrolled a school of dentistry or a formal educational program in leading to a degree in dentistry.Dental Caries: Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp.Materials Testing: The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.Light: That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.Dental Materials: Materials used in the production of dental bases, restorations, impressions, prostheses, etc.Dental Care for Chronically Ill: Dental care for patients with chronic diseases. These diseases include chronic cardiovascular, endocrinologic, hematologic, immunologic, neoplastic, and renal diseases. The concept does not include dental care for the mentally or physically disabled which is DENTAL CARE FOR DISABLED.Phosphines: Inorganic or organic compounds derived from phosphine (PH3) by the replacement of H atoms. (From Grant & Hackh's Chemical Dictionary, 5th ed)Camphor: A bicyclic monoterpene ketone found widely in plants, especially CINNAMOMUM CAMPHORA. It is used topically as a skin antipruritic and as an anti-infective agent.Dentin: The hard portion of the tooth surrounding the pulp, covered by enamel on the crown and cementum on the root, which is harder and denser than bone but softer than enamel, and is thus readily abraded when left unprotected. (From Jablonski, Dictionary of Dentistry, 1992)Polymerization: Chemical reaction in which monomeric components are combined to form POLYMERS (e.g., POLYMETHYLMETHACRYLATE).Curing Lights, Dental: Light sources used to activate polymerization of light-cured DENTAL CEMENTS and DENTAL RESINS. Degree of cure and bond strength depends on exposure time, wavelength, and intensity of the curing light.Dental Care for Children: The giving of attention to the special dental needs of children, including the prevention of tooth diseases and instruction in dental hygiene and dental health. The dental care may include the services provided by dental specialists.Dental Pulp: A richly vascularized and innervated connective tissue of mesodermal origin, contained in the central cavity of a tooth and delimited by the dentin, and having formative, nutritive, sensory, and protective functions. (Jablonski, Dictionary of Dentistry, 1992)Dental Clinics: Facilities where dental care is provided to patients.Methylmethacrylates: The methyl esters of methacrylic acid that polymerize easily and are used as tissue cements, dental materials, and absorbent for biological substances.Dental Stress Analysis: The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures.Composite Resins: Synthetic resins, containing an inert filler, that are widely used in dentistry.Dental Hygienists: Persons trained in an accredited school or dental college and licensed by the state in which they reside to provide dental prophylaxis under the direction of a licensed dentist.Ion-Selective Electrodes: Electrodes which can be used to measure the concentration of particular ions in cells, tissues, or solutions.Faculty, Dental: The teaching staff and members of the administrative staff having academic rank in a dental school.Acid Etching, Dental: Preparation of TOOTH surfaces and DENTAL MATERIALS with etching agents, usually phosphoric acid, to roughen the surface to increase adhesion or osteointegration.Cermet Cements: Fluoride-releasing restorative materials made by the sintering of metal (usually silver) particles to glass ionomer powder. Glass ionomers are fluoride-releasing cements that are not very durable. Sintering of the metal particles is a means of improving those physical properties that will make the glass ionomer cement more durable.Resins, Synthetic: Polymers of high molecular weight which at some stage are capable of being molded and then harden to form useful components.Dental Care for Disabled: Dental care for the emotionally, mentally, or physically disabled patient. It does not include dental care for the chronically ill ( = DENTAL CARE FOR CHRONICALLY ILL).para-Aminobenzoates: Benzoic acids, salts, or esters that contain an amino group attached to carbon number 4 of the benzene ring structure.Dental Anxiety: Abnormal fear or dread of visiting the dentist for preventive care or therapy and unwarranted anxiety over dental procedures.Shear Strength: The internal resistance of a material to moving some parts of it parallel to a fixed plane, in contrast to stretching (TENSILE STRENGTH) or compression (COMPRESSIVE STRENGTH). Ionic crystals are brittle because, when subjected to shear, ions of the same charge are brought next to each other, which causes repulsion.Insurance, Dental: Insurance providing coverage for dental care.Cariostatic Agents: Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed)Dental Auxiliaries: Personnel whose work is prescribed and supervised by the dentist.Dental Health Services: Services designed to promote, maintain, or restore dental health.Dental Research: The study of laws, theories, and hypotheses through a systematic examination of pertinent facts and their interpretation in the field of dentistry. (From Jablonski, Illustrated Dictionary of Dentistry, 1982, p674)Dental Care for Aged: The giving of attention to the special dental needs of the elderly for proper maintenance or treatment. The dental care may include the services provided by dental specialists.Dental Arch: The curve formed by the row of TEETH in their normal position in the JAW. The inferior dental arch is formed by the mandibular teeth, and the superior dental arch by the maxillary teeth.Silicate Cement: A relatively hard, translucent, restorative material used primarily in anterior teeth. (From Boucher's Clinical Dental Terminology, 4th ed, p50)Acrylic ResinsDental Plaque: A film that attaches to teeth, often causing DENTAL CARIES and GINGIVITIS. It is composed of MUCINS, secreted from salivary glands, and microorganisms.Polycarboxylate Cement: Water-soluble low-molecular-weight polymers of acrylic or methacrylic acid that form solid, insoluble products when mixed with specially prepared ZnO powder. The resulting cement adheres to dental enamel and is also used as a luting agent.Tissue Adhesives: Substances used to cause adherence of tissue to tissue or tissue to non-tissue surfaces, as for prostheses.Dental Equipment: The nonexpendable items used by the dentist or dental staff in the performance of professional duties. (From Boucher's Clinical Dental Terminology, 4th ed, p106)Dental Offices: The room or rooms in which the dentist and dental staff provide care. Offices include all rooms in the dentist's office suite.Dental Records: Data collected during dental examination for the purpose of study, diagnosis, or treatment planning.Dental Staff: Personnel who provide dental service to patients in an organized facility, institution or agency.Dental Amalgam: An alloy used in restorative dentistry that contains mercury, silver, tin, copper, and possibly zinc.General Practice, Dental: Nonspecialized dental practice which is concerned with providing primary and continuing dental care.Dental Assistants: Individuals who assist the dentist or the dental hygienist.Dental Implants: Biocompatible materials placed into (endosseous) or onto (subperiosteal) the jawbone to support a crown, bridge, or artificial tooth, or to stabilize a diseased tooth.Education, Dental, Continuing: Educational programs designed to inform dentists of recent advances in their fields.Anesthesia, Dental: A range of methods used to reduce pain and anxiety during dental procedures.Technology, Dental: The field of dentistry involved in procedures for designing and constructing dental appliances. It includes also the application of any technology to the field of dentistry.Polymethyl Methacrylate: Polymerized methyl methacrylate monomers which are used as sheets, moulding, extrusion powders, surface coating resins, emulsion polymers, fibers, inks, and films (From International Labor Organization, 1983). This material is also used in tooth implants, bone cements, and hard corneal contact lenses.Radiography, Dental: Radiographic techniques used in dentistry.Dental Models: Presentation devices used for patient education and technique training in dentistry.Education, Dental, Graduate: Educational programs for dental graduates entering a specialty. They include formal specialty training as well as academic work in the clinical and basic dental sciences, and may lead to board certification or an advanced dental degree.Ethics, Dental: The principles of proper professional conduct concerning the rights and duties of the dentist, relations with patients and fellow practitioners, as well as actions of the dentist in patient care and interpersonal relations with patient families. (From Stedman, 25th ed)Dentists: Individuals licensed to practice DENTISTRY.Dental Service, Hospital: Hospital department providing dental care.Fluorosis, Dental: A chronic endemic form of hypoplasia of the dental enamel caused by drinking water with a high fluorine content during the time of tooth formation, and characterized by defective calcification that gives a white chalky appearance to the enamel, which gradually undergoes brown discoloration. (Jablonski's Dictionary of Dentistry, 1992, p286)Tensile Strength: The maximum stress a material subjected to a stretching load can withstand without tearing. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed, p2001)Societies, Dental: Societies whose membership is limited to dentists.Dental Health Surveys: A systematic collection of factual data pertaining to dental or oral health and disease in a human population within a given geographic area.Licensure, Dental: The granting of a license to practice dentistry.Laboratories, Dental: Facilities for the performance of services related to dental treatment but not done directly in the patient's mouth.Adhesiveness: A property of the surface of an object that makes it stick to another surface.Specialties, Dental: Various branches of dental practice limited to specialized areas.Fees, Dental: Amounts charged to the patient as payer for dental services.Dental Porcelain: A type of porcelain used in dental restorations, either jacket crowns or inlays, artificial teeth, or metal-ceramic crowns. It is essentially a mixture of particles of feldspar and quartz, the feldspar melting first and providing a glass matrix for the quartz. Dental porcelain is produced by mixing ceramic powder (a mixture of quartz, kaolin, pigments, opacifiers, a suitable flux, and other substances) with distilled water. (From Jablonski's Dictionary of Dentistry, 1992)Dental Alloys: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions for use in restorative or prosthetic dentistry.Dental Technicians: Individuals responsible for fabrication of dental appliances.Practice Management, Dental: The organization and operation of the business aspects of a dental practice.Dental Sac: Dense fibrous layer formed from mesodermal tissue that surrounds the epithelial enamel organ. The cells eventually migrate to the external surface of the newly formed root dentin and give rise to the cementoblasts that deposit cementum on the developing root, fibroblasts of the developing periodontal ligament, and osteoblasts of the developing alveolar bone.Zinc Oxide-Eugenol Cement: Used as a dental cement this is mainly zinc oxide (with strengtheners and accelerators) and eugenol. (Boucher's Clinical Dental Terminology, 4th ed, p50)Surface Properties: Characteristics or attributes of the outer boundaries of objects, including molecules.Esthetics, Dental: Skills, techniques, standards, and principles used to improve the art and symmetry of the teeth and face to improve the appearance as well as the function of the teeth, mouth, and face. (From Boucher's Clinical Dental Terminology, 4th ed, p108)Dentistry: The profession concerned with the teeth, oral cavity, and associated structures, and the diagnosis and treatment of their diseases including prevention and the restoration of defective and missing tissue.Tooth: One of a set of bone-like structures in the mouth used for biting and chewing.Molar: The most posterior teeth on either side of the jaw, totaling eight in the deciduous dentition (2 on each side, upper and lower), and usually 12 in the permanent dentition (three on each side, upper and lower). They are grinding teeth, having large crowns and broad chewing surfaces. (Jablonski, Dictionary of Dentistry, 1992, p821)Dental Cavity Preparation: An operation in which carious material is removed from teeth and biomechanically correct forms are established in the teeth to receive and retain restorations. A constant requirement is provision for prevention of failure of the restoration through recurrence of decay or inadequate resistance to applied stresses. (Boucher's Clinical Dental Terminology, 4th ed, p239-40)Comprehensive Dental Care: Providing for the full range of dental health services for diagnosis, treatment, follow-up, and rehabilitation of patients.Health Education, Dental: Education which increases the awareness and favorably influences the attitudes and knowledge relating to the improvement of dental health on a personal or community basis.Dental Instruments: Hand-held tools or implements especially used by dental professionals for the performance of clinical tasks.Dentist-Patient Relations: The psychological relations between the dentist and patient.Hardness: The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property.Dental Leakage: The seepage of fluids, debris, and micro-organisms between the walls of a prepared dental cavity and the restoration.Dental Restoration Failure: Inability or inadequacy of a dental restoration or prosthesis to perform as expected.Dental Prosthesis Retention: Holding a DENTAL PROSTHESIS in place by its design, or by the use of additional devices or adhesives.Infection Control, Dental: Efforts to prevent and control the spread of infections within dental health facilities or those involving provision of dental care.Dental Papilla: Mesodermal tissue enclosed in the invaginated portion of the epithelial enamel organ and giving rise to the dentin and pulp.Dental Prosthesis: An artificial replacement for one or more natural teeth or part of a tooth, or associated structures, ranging from a portion of a tooth to a complete denture. The dental prosthesis is used for cosmetic or functional reasons, or both. DENTURES and specific types of dentures are also available. (From Boucher's Clinical Dental Terminology, 4th ed, p244 & Jablonski, Dictionary of Dentistry, 1992, p643)Crowns: A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more surfaces of a tooth) or complete (covering all surfaces). It is made of gold or other metal, porcelain, or resin.Dental Restoration, Temporary: A prosthesis or restoration placed for a limited period, from several days to several months, which is designed to seal the tooth and maintain its position until a permanent restoration (DENTAL RESTORATION, PERMANENT) will replace it. (From Jablonski, Dictionary of Dentistry, 1992)Dental Audit: A detailed review and evaluation of selected clinical records by qualified professional personnel for evaluating quality of dental care.Dental Waste: Any waste product generated by a dental office, surgery, clinic, or laboratory including amalgams, saliva, and rinse water.Cementation: The joining of objects by means of a cement (e.g., in fracture fixation, such as in hip arthroplasty for joining of the acetabular component to the femoral component). In dentistry, it is used for the process of attaching parts of a tooth or restorative material to a natural tooth or for the attaching of orthodontic bands to teeth by means of an adhesive.Tooth DiseasesDental Implantation: The grafting or inserting of a prosthetic device of alloplastic material into the oral tissue beneath the mucosal or periosteal layer or within the bone. Its purpose is to provide support and retention to a partial or complete denture.Oral Health: The optimal state of the mouth and normal functioning of the organs of the mouth without evidence of disease.Construction Materials: Supplies used in building.Dental Polishing: Creation of a smooth and glossy surface finish on a denture or amalgam.Economics, Dental: Economic aspects of the dental profession and dental care.Dental Scaling: Removal of dental plaque and dental calculus from the surface of a tooth, from the surface of a tooth apical to the gingival margin accumulated in periodontal pockets, or from the surface coronal to the gingival margin.Silicates: The generic term for salts derived from silica or the silicic acids. They contain silicon, oxygen, and one or more metals, and may contain hydrogen. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th Ed)Self-Curing of Dental Resins: The hardening or polymerization of bonding agents (DENTAL CEMENTS) via chemical reactions, usually involving two components. This type of dental bonding uses a self-cure or dual-cure system.Aluminum Silicates: Any of the numerous types of clay which contain varying proportions of Al2O3 and SiO2. They are made synthetically by heating aluminum fluoride at 1000-2000 degrees C with silica and water vapor. (From Hawley's Condensed Chemical Dictionary, 11th ed)DMF Index: "Decayed, missing and filled teeth," a routinely used statistical concept in dentistry.Dental Caries Susceptibility: The predisposition to tooth decay (DENTAL CARIES).Dental Informatics: The application of computer and information sciences to improve dental practice, research, education and management.Zirconium: Zirconium. A rather rare metallic element, atomic number 40, atomic weight 91.22, symbol Zr. (From Dorland, 28th ed)Dental Etching: Preparation of TOOTH surfaces, and of materials bonded to teeth or DENTAL IMPLANTS, with agents and methods which roughen the surface to facilitate adhesion. Agents include phosphoric or other acids (ACID ETCHING, DENTAL) and methods include LASERS.Calcium Phosphates: Calcium salts of phosphoric acid. These compounds are frequently used as calcium supplements.Oral Hygiene: The practice of personal hygiene of the mouth. It includes the maintenance of oral cleanliness, tissue tone, and general preservation of oral health.Microscopy, Electron, Scanning: Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.Dental Occlusion: The relationship of all the components of the masticatory system in normal function. It has special reference to the position and contact of the maxillary and mandibular teeth for the highest efficiency during the excursive movements of the jaw that are essential for mastication. (From Jablonski, Dictionary of Dentistry, 1992, p556, p472)Tooth, Deciduous: The teeth of the first dentition, which are shed and replaced by the permanent teeth.Vertebroplasty: Procedures to repair or stabilize vertebral fractures, especially compression fractures accomplished by injecting BONE CEMENTS into the fractured VERTEBRAE.Calcium Compounds: Inorganic compounds that contain calcium as an integral part of the molecule.Dentistry, Operative: That phase of clinical dentistry concerned with the restoration of parts of existing teeth that are defective through disease, trauma, or abnormal development, to the state of normal function, health, and esthetics, including preventive, diagnostic, biological, mechanical, and therapeutic techniques, as well as material and instrument science and application. (Jablonski's Dictionary of Dentistry, 2d ed, p237)Dental Cavity Lining: An inner coating, as of varnish or other protective substance, to cover the dental cavity wall. It is usually a resinous film-forming agent dissolved in a volatile solvent, or a suspension of calcium hydroxide in a solution of a synthetic resin. The lining seals the dentinal tubules and protects the pulp before a restoration is inserted. (Jablonski, Illustrated Dictionary of Dentistry, 1982)Magnesium Oxide: Magnesium oxide (MgO). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses.Radiography, Dental, Digital: A rapid, low-dose, digital imaging system using a small intraoral sensor instead of radiographic film, an intensifying screen, and a charge-coupled device. It presents the possibility of reduced patient exposure and minimal distortion, although resolution and latitude are inferior to standard dental radiography. A receiver is placed in the mouth, routing signals to a computer which images the signals on a screen or in print. It includes digitizing from x-ray film or any other detector. (From MEDLINE abstracts; personal communication from Dr. Charles Berthold, NIDR)Dental Facilities: Use for material on dental facilities in general or for which there is no specific heading.Dental Prosthesis Design: The plan and delineation of dental prostheses in general or a specific dental prosthesis. It does not include DENTURE DESIGN. The framework usually consists of metal.Incisor: Any of the eight frontal teeth (four maxillary and four mandibular) having a sharp incisal edge for cutting food and a single root, which occurs in man both as a deciduous and a permanent tooth. (Jablonski, Dictionary of Dentistry, 1992, p820)Dental Devices, Home Care: Devices used in the home by persons to maintain dental and periodontal health. The devices include toothbrushes, dental flosses, water irrigators, gingival stimulators, etc.Preventive Dentistry: The branch of dentistry concerned with the prevention of disease and the maintenance and promotion of oral health.Phosphoric Acids: Inorganic derivatives of phosphoric acid (H3PO4). Note that organic derivatives of phosphoric acids are listed under ORGANOPHOSPHATES.Photography, Dental: Photographic techniques used in ORTHODONTICS; DENTAL ESTHETICS; and patient education.Tooth Extraction: The surgical removal of a tooth. (Dorland, 28th ed)Dental Enamel: A hard thin translucent layer of calcified substance which envelops and protects the dentin of the crown of the tooth. It is the hardest substance in the body and is almost entirely composed of calcium salts. Under the microscope, it is composed of thin rods (enamel prisms) held together by cementing substance, and surrounded by an enamel sheath. (From Jablonski, Dictionary of Dentistry, 1992, p286)Bicuspid: One of the eight permanent teeth, two on either side in each jaw, between the canines (CUSPID) and the molars (MOLAR), serving for grinding and crushing food. The upper have two cusps (bicuspid) but the lower have one to three. (Jablonski, Dictionary of Dentistry, 1992, p822)Orthodontic Brackets: Small metal or ceramic attachments used to fasten an arch wire. These attachments are soldered or welded to an orthodontic band or cemented directly onto the teeth. Bowles brackets, edgewise brackets, multiphase brackets, ribbon arch brackets, twin-wire brackets, and universal brackets are all types of orthodontic brackets.Dental Abutments: Natural teeth or teeth roots used as anchorage for a fixed or removable denture or other prosthesis (such as an implant) serving the same purpose.Community Dentistry: The practice of dentistry concerned with preventive as well as diagnostic and treatment programs in a circumscribed population.Dental Marginal Adaptation: The degree of approximation or fit of filling material or dental prosthetic to the tooth surface. A close marginal adaptation and seal at the interface is important for successful dental restorations.Cell Adhesion: Adherence of cells to surfaces or to other cells.Stomatognathic Diseases: General or unspecified diseases of the stomatognathic system, comprising the mouth, teeth, jaws, and pharynx.Pediatric Dentistry: The practice of dentistry concerned with the dental problems of children, proper maintenance, and treatment. The dental care may include the services provided by dental specialists.American Dental Association: Professional society representing the field of dentistry.Dentist's Practice Patterns: Patterns of practice in dentistry related to diagnosis and treatment.Gold Alloys: Alloys that contain a high percentage of gold. They are used in restorative or prosthetic dentistry.Dental Pulp Capping: Application of a protective agent to an exposed pulp (direct capping) or the remaining thin layer of dentin over a nearly exposed pulp (indirect capping) in order to allow the pulp to recover and maintain its normal vitality and function.Dental Implantation, Endosseous: Insertion of an implant into the bone of the mandible or maxilla. The implant has an exposed head which protrudes through the mucosa and is a prosthodontic abutment.Fluorides: Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.Stress, Mechanical: A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.Compressive Strength: The maximum compression a material can withstand without failure. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed, p427)Dental Restoration, Permanent: A restoration designed to remain in service for not less than 20 to 30 years, usually made of gold casting, cohesive gold, or amalgam. (Jablonski, Dictionary of Dentistry, 1992)Toothache: Pain in the adjacent areas of the teeth.Dental Veneers: The use of a layer of tooth-colored material, usually porcelain or acrylic resin, applied to the surface of natural teeth, crowns, or pontics by fusion, cementation, or mechanical retention.Legislation, Dental: Laws and regulations pertaining to the field of dentistry, proposed for enactment or recently enacted by a legislative body.Root Canal Therapy: A treatment modality in endodontics concerned with the therapy of diseases of the dental pulp. For preparatory procedures, ROOT CANAL PREPARATION is available.Tooth Abnormalities: Congenital absence of or defects in structures of the teeth.Compomers: Composite materials composed of an ion-leachable glass embedded in a polymeric matrix. They differ from GLASS IONOMER CEMENTS in that partially silanized glass particles are used to provide a direct bond to the resin matrix and the matrix is primarily formed by a light-activated, radical polymerization reaction.Pit and Fissure Sealants: Agents used to occlude dental enamel pits and fissures in the prevention of dental caries.Tooth Injuries: Traumatic or other damage to teeth including fractures (TOOTH FRACTURES) or displacements (TOOTH LUXATION).Dental Debonding: Techniques used for removal of bonded orthodontic appliances, restorations, or fixed dentures from teeth.Dental Enamel Hypoplasia: An acquired or hereditary condition due to deficiency in the formation of tooth enamel (AMELOGENESIS). It is usually characterized by defective, thin, or malformed DENTAL ENAMEL. Risk factors for enamel hypoplasia include gene mutations, nutritional deficiencies, diseases, and environmental factors.Silanes: Compounds similar to hydrocarbons in which a tetravalent silicon atom replaces the carbon atom. They are very reactive, ignite in air, and form useful derivatives.Ceramics: Products made by baking or firing nonmetallic minerals (clay and similar materials). In making dental restorations or parts of restorations the material is fused porcelain. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Boucher's Clinical Dental Terminology, 4th ed)Endodontics: A dental specialty concerned with the maintenance of the dental pulp in a state of health and the treatment of the pulp cavity (pulp chamber and pulp canal).Libraries, DentalToothbrushing: The act of cleaning teeth with a brush to remove plaque and prevent tooth decay. (From Webster, 3d ed)Diagnosis, Oral: Examination of the mouth and teeth toward the identification and diagnosis of intraoral disease or manifestation of non-oral conditions.Evidence-Based Dentistry: An approach or process of practicing oral health care that requires the judicious integration of systematic assessments of clinical relevant scientific evidence, relating to the patient's oral and medical condition and history, with the dentist's clinical expertise and the patient's treatment needs and preferences. (from J Am Dent Assoc 134: 689, 2003)Group Practice, Dental: Any group of three or more full-time dentists, organized in a legally recognized entity for the provision of dental care, sharing space, equipment, personnel and records for both patient care and business management, and who have a predetermined arrangement for the distribution of income.Post and Core Technique: Use of a metal casting, usually with a post in the pulp or root canal, designed to support and retain an artificial crown.Dental Pulp Diseases: Endodontic diseases of the DENTAL PULP inside the tooth, which is distinguished from PERIAPICAL DISEASES of the tissue surrounding the root.Inlays: Restorations of metal, porcelain, or plastic made to fit a cavity preparation, then cemented into the tooth. Onlays are restorations which fit into cavity preparations and overlay the occlusal surface of a tooth or teeth. Onlays are retained by frictional or mechanical factors.Dental Calculus: Abnormal concretion or calcified deposit that forms around the teeth or dental prostheses.Dental Pulp CalcificationDentin Permeability: The property of dentin that permits passage of light, heat, cold, and chemical substances. It does not include penetration by microorganisms.Dental Impression Technique: Procedure of producing an imprint or negative likeness of the teeth and/or edentulous areas. Impressions are made in plastic material which becomes hardened or set while in contact with the tissue. They are later filled with plaster of Paris or artificial stone to produce a facsimile of the oral structures present. Impressions may be made of a full complement of teeth, of areas where some teeth have been removed, or in a mouth from which all teeth have been extracted. (Illustrated Dictionary of Dentistry, 1982)Dentition: The teeth collectively in the dental arch. Dentition ordinarily refers to the natural teeth in position in their alveoli. Dentition referring to the deciduous teeth is DENTITION, PRIMARY; to the permanent teeth, DENTITION, PERMANENT. (From Jablonski, Dictionary of Dentistry, 1992)Time Factors: Elements of limited time intervals, contributing to particular results or situations.Polyurethanes: A group of thermoplastic or thermosetting polymers containing polyisocyanate. They are used as ELASTOMERS, as coatings, as fibers and as foams.Cuspid: The third tooth to the left and to the right of the midline of either jaw, situated between the second INCISOR and the premolar teeth (BICUSPID). (Jablonski, Dictionary of Dentistry, 1992, p817)Dental Plaque Index: An index which scores the degree of dental plaque accumulation.Mandible: The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.Tooth Crown: The upper part of the tooth, which joins the lower part of the tooth (TOOTH ROOT) at the cervix (TOOTH CERVIX) at a line called the cementoenamel junction. The entire surface of the crown is covered with enamel which is thicker at the extremity and becomes progressively thinner toward the cervix. (From Jablonski, Dictionary of Dentistry, 1992, p216)Maxilla: One of a pair of irregularly shaped bones that form the upper jaw. A maxillary bone provides tooth sockets for the superior teeth, forms part of the ORBIT, and contains the MAXILLARY SINUS.Statistics, Nonparametric: A class of statistical methods applicable to a large set of probability distributions used to test for correlation, location, independence, etc. In most nonparametric statistical tests, the original scores or observations are replaced by another variable containing less information. An important class of nonparametric tests employs the ordinal properties of the data. Another class of tests uses information about whether an observation is above or below some fixed value such as the median, and a third class is based on the frequency of the occurrence of runs in the data. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1284; Corsini, Concise Encyclopedia of Psychology, 1987, p764-5)Dental Pulp Cavity: The space in a tooth bounded by the dentin and containing the dental pulp. The portion of the cavity within the crown of the tooth is the pulp chamber; the portion within the root is the pulp canal or root canal.Tooth Erosion: Progressive loss of the hard substance of a tooth by chemical processes that do not involve bacterial action. (Jablonski, Dictionary of Dentistry, 1992, p296)Tooth Preparation, Prosthodontic: The selected form given to a natural tooth when it is reduced by instrumentation to receive a prosthesis (e.g., artificial crown or a retainer for a fixed or removable prosthesis). The selection of the form is guided by clinical circumstances and physical properties of the materials that make up the prosthesis. (Boucher's Clinical Dental Terminology, 4th ed, p239)Prosthodontics: A dental specialty concerned with the restoration and maintenance of oral function by the replacement of missing TEETH and related structures by artificial devices or DENTAL PROSTHESES.Analysis of Variance: A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.Odontogenesis: The process of TOOTH formation. It is divided into several stages including: the dental lamina stage, the bud stage, the cap stage, and the bell stage. Odontogenesis includes the production of tooth enamel (AMELOGENESIS), dentin (DENTINOGENESIS), and dental cementum (CEMENTOGENESIS).

*Dental braces

A bracket will be applied with dental cement, and then cured with light until hardened. This process usually takes a few ... Teeth to be braced will have an adhesive applied to help the cement bond to the surface of the tooth. In most cases the teeth ... Removal of the cemented brackets can also be painful. The cement must be chipped and scraped off which can cause severe pain in ... Survey: Most Effective Dental Braces Are Least Attractive Newswise, Retrieved on July 9, 2008. Media related to Dental braces ...

*Glass ionomer cement

"Influence of Thermo-Light Curing with Dental Light-Curing Units on the Microhardness of Glass-Ionomer Cements". Int J ... Glass ionomer cement is primarily used in the prevention of dental caries. This dental material has good adhesive bond ... Only the material properly activated by light will be optimally cured. The presence of resin protects the cement from water ... Different methods have been used to address the physical shorcomings of the glass ionomer cements such as thermo-light curing( ...

*Dental composite

Chemical cure (self-cure / dark cure) Light cure Dual cure (setting both chemically and by light) Chemically cured resin ... The journal of adhesive dentistry. 14 (5): 407-431. doi:10.3290/j.jad.a28390. PMID 23082310. "Dental amalgam or resin composite ... Period Hybrid composites were introduced in the 1980s and are more commonly known as resin-modified glass ionomer cements ( ... Therefore, UV light-curing units were later replaced by visible light-curing systems which used Camphorquinone as a light ...

*Dental sealant

Glass ionomer do not require light curing, however they will set faster with the usage of a curing light. Resin-based sealants ... In 1974, glass ionomer cement fissure seals (GIC) were introduced by J.W. McLean and A.D. Wilson. Modern dental sealants ... It has been demonstrated that use of adhesive systems before applying dental sealants may improve retention. Traditional ... the American Dental Association, the Australian Dental Association, the British Dental Association, and the Canadian Dental ...

*Plaster

After a curing period, the mold is opened and the dentures are cleaned up and polished. Plasters have been in use in passive ... Cement plaster was first introduced in America around 1909 and was often called by the generic name adamant plaster after a ... In dentistry plaster is used to make dental models. Various types of models and moulds are made with plaster. In art, lime ... It is done in various designs containing various combinations of lights and colors. The common use of this plaster can be seen ...

*Cross-linked polyethylene

Dental applications. Some application of PEX has also been seen in dental restoration as a composite filling material. ... Limited adhesives for pipe insulation. One source suggested that pipe insulation, applied to PEX using certain adhesives, could ... The silane method, also called the "moisture cure" method, results in PEX-B. In this method, cross-linking is performed in a ... or a lighter, concrete-like material in bathrooms or kitchens especially. Mader, Robert P. (Sep 2, 2010). "California approves ...

*Dental impression

This can reduce the efficacy of the adhesive to bind to the tray. Types of Tray Adhesives: Various tray adhesives are available ... The most common forms are: extra light-bodied (low filler content), light-bodied, universal or medium-bodied, heavy-bodied and ... condensation-cured silicones, addition silicones, vinyl polyether silicones (VPES) polyethers polysulphides rigid materials: ... and cast this slight contraction means the resulting model is slightly larger and as such creates space for the luting cement. ...
This invention relates to a moisture-vapor-permeable pressure-sensitive adhesive material for use on animal skin and nails, e.g. a surgical drape, suture strip or sheet, adhesive dressing, bandage, plaster, strapping tape, decorative nail covering, or decorative cosmetic product. The adhesive material comprises a backing material and a pressure-sensitive adhesive on at least substantially the whole of the body adhering portion of at least one surface of said backing material, both said backing material and said adhesive being moisture-vapor-permeable and unaffected by water and at least one of said backing material and said adhesive comprising a synthetic polymer and .Iadd.both said backing material and said adhesive .Iaddend.being continuous and nonpermeable to liquid water, said adhesive material having a moisture vapor permeability of at least 300 g/sq. meter/24 hours/40 C./80 percent RH.
0085]When a layer made from an ultraviolet curing-type pressure-sensitive adhesive that is cured by an ultraviolet in advance is adopted as the pressure-sensitive adhesive layer 14, the layer is formed as follows. That is, the pressure-sensitive adhesive layer is formed by forming a coating film by applying an ultraviolet curing-type pressure-sensitive adhesive composition onto the base material 13 and then drying the coating film (crosslinking by heating as necessary) under a prescribed condition. The coating method, the coating condition, and the drying condition can be the same as above. Further, the pressure-sensitive adhesive layer may be formed by forming a coating film by applying the ultraviolet curing-type pressure-sensitive adhesive composition onto the first separator 21 and then drying the coating film under the above-described drying condition. After that, the pressure-sensitive adhesive layer is transferred onto the base material 13. Further, ...
0010] Inventors of the present invention conducted intensive studies on an inorganic filler and a resin composition in order to provide an adhesive material having sufficient adhesiveness and sufficient heat resistance. As a result, the inventors found that a layered clay mineral dispersed in an adhesive agent does not undergo complete interlayer separation, but the layered clay mineral is dispersed in the adhesive agent with its layers being in a stacked state. Therefore, the resulting adhesive composition suffers from variations in physical properties. Further, the inventors found that, where an adhesive tape is produced by using the adhesive composition, stress is liable to be concentrated on peripheries of particles of the layered clay mineral in the adhesive agent during peel-off of the adhesive tape, resulting in cohesive failure of the adhesive agent. As a result of further studies, the inventors found that, where an organophilic layered double hydroxide (B) organically treated with an ...
The present invention includes: an adhesive material attaching process for attaching a wafer to a thermoseffing adhesive material provided on a base film; a dicing-film attaching process for attaching the base film to a dicing film; an IC-chip separating process for cutting the wafer and the thermosetting adhesive material to divide them into IC chips; and a mounting process for attaching, to a carrier, the IC chips having the thermosetting adhesive material attached thereto; wherein the thermosetting adhesive material has a viscosity of 20000 Pa s or less at the attaching temperature during the adhesive material attaching process.
The present invention provides pressure-sensitive adhesives having a refractive index of at least 1.50. The pressure-sensitive adhesives comprise at least one monomer containing a substituted or an unsubstituted biphenyl group.
The present invention provides pressure-sensitive adhesives having a refractive index of at least 1.50. The pressure-sensitive adhesives comprise at least one monomer containing a substituted or an unsubstituted biphenyl group.
Looking for online definition of Portland cement concrete in the Medical Dictionary? Portland cement concrete explanation free. What is Portland cement concrete? Meaning of Portland cement concrete medical term. What does Portland cement concrete mean?
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TY - JOUR. T1 - Effect of thermocycling on shear bond strength of glass ionomer cements. AU - Ballal, Nidambur Vasudev. AU - Paulson, Liz. AU - Ginjupalli, Kishore. AU - Ozcan, Mutlu. PY - 2019/1/1. Y1 - 2019/1/1. N2 - To evaluate the effect of thermocycling on shear bond strength of Fuji IX glass ionomer cement and a novel glass ionomer cement (Ketac Universal) to dentin. A total of 40 extracted human molars were divided into 4 groups (n = 10). The occlusal surfaces were ground flat to expose dentin using diamond discs. Dentin surfaces were treated according to manufacturers instructions, and restorative materials were applied onto a plastic mold of 3mm height and 4mm diameter. The shear bond strength of Ketac Universal and conventional Fuji IX glass ionomer cements was evaluated after 24 h using Instron Universal Testing Machine at a crosshead speed of 0.5 mm/min before and after the specimens were subjected to thrmocycling. There was no statistical difference in the shear ...
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Objective. Evaluate, in vitro, the microtensile bond strength (µTBS) of RelyX ARC conventional resin cement and RelyX Unicem and Maxcem self-adhesive resin cements to dentin, and the infl uence of polyacrylic acid pretreatment on the µTBS. Material and Methods. Flat dentin surfaces were obtained in 15 third molars which were randomly divided into 5 groups: Group 1 - RelyX ARC (control); Group 2 - RelyX Unicem; Group 3 - Maxcem Elite; Group 4 - 22.5% polyacrylic acid and RelyX Unicem; Group 5 - 22.5% polyacrylic acid and Maxcem Elite. A block of composite resin was built over the resin cements. The samples were sectioned to obtain beams, and 20 specimens for each group were submitted to µTBS on a universal testing machine. Failure modes were analyzed by scanning electron microscopy. Results. According to ANOVA and Tukey test, the highest µTBS mean (MPa) was obtained with RelyX ARC (21.38), which did not differ statistically from Maxcem Elite with polyacrylic acid pretreatment ...
Ball Mills Cement Factory For Clinker Mixing , Crusher ... cement factory for clinker mixing , ® Crusher. Heavy Industry(shanghai) is the best cement factory for clinker mixing manufacturers and suppliers ... » Request a quotation. Cement mill,Cement mill price,Raw material mill,China ... The Handling Materials and Application of Cement Mill: Cement mill is widely used for the cement, the silicate product, new type building material, fire-proof ... » Request a quotation. UNITED STATES PORTLAND CEMENT PLANTS UNITED STATES PORTLAND CEMENT PLANTS (Ranked by size, ... RC Cement Company, Inc. - Festus, MO Essroc Cement Corp. - Nazareth, PA Texas Industries - Oro Grande, CA » Request a quotation. Cement production line,Cement making plant,Cement ... The Major Equipment of Cement Production Line: The main equipment of cement production line are vibrating feeder, jaw crusher, impact crusher, cement ball mill, lifer ... » Request a quotation. Chapter 1 - Introduction to Cement Production Chapter 1 - ...
Employees at General Portland Cement Co. Florida Portland Cement Division in Tampa, may have been exposed to asbestos which can lead to mesothelioma and other asbestos related diseases.
The purpose of this study was to determine the failure mode of a posterior composite resin bonded to a glass-ionomer cement that was treated with and without a cationic vinyl functional silane coupling agent while the etch times were varied. Bond failure occurred at the glass-ionomer cement-composite resin interface (adhesive failure) in specimens that were not etched and when no coupling agent was used. When the samples were etched for 5, 15, or 30 seconds, approximately 50% failed within the glass-ionomer cement (cohesive failure). The use of the coupling agent produced a failure mode of 80% to 100% within the glass-ionomer cement. With a 15-second etch, the coupling agent produced 100% failure within the glass-ionomer cement, while only 50% of the samples without the coupling agent failed within the glass-ionomer cement. With a 30-second etch, all the samples treated with the coupling agent failed within the glass-ionomer Cement, while only 60% of the samples not treated with the coupling ...
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The aim of this in vitro study was to compare the shear bond strength (SBS) and failure modes of a conventional resin-based composite with a recently developed amorphous calcium phosphate (ACP)-containing orthodontic composite system. Forty freshly extracted human maxillary premolar teeth were randomly divided into two equal groups. Conventional composite (group 1; Transbond-XT®; 3M Unitek) and ACP-containing orthodontic composite (group 2; Aegis-Ortho®; Harry J. Bosworth Co.) were used for bonding ceramic orthodontic brackets. The SBS of these brackets were measured and recorded in megapascals (MPa). Adhesive remnant index (ARI) scores were determined after bracket failure. Data were analysed with a Students t-test for two independent variables and Pearsons chi-square tests.. Statistical analysis showed that the bond strength of group 1 (mean: 36.7 ± 6.8 MPa) was significantly higher than group 2 (mean: 24.2 ± 5.4 MPa; P , 0.01). Although a greater percentage of the fractures were ...
QUEIROZ, Celso Emanoel de Souza et al. Evaluation of cytotoxicity of two endodontic cements in a macrophage culture. J. Appl. Oral Sci. [online]. 2005, vol.13, n.3, pp.237-242. ISSN 1678-7757. http://dx.doi.org/10.1590/S1678-77572005000300007.. Compared to gutta-percha, the endodontic cements are used in small quantity to seal root canals, but are indispensable to achieve hermetically sealed margins, where its biocompatibility depends on the sum of responses of each cell present in the periapical region. The object of this study was to evaluate the cytotoxicity of two endodontic cements, one based on epoxy resin (Sealer 26) and the other containing zinc oxide eugenol (Endofill) by using cultured peritoneal macrophages from Swiss mice to measure the induced production of nitric oxide. After solidification and pulverization, aliquots of 100ml of suspension containing 18mg/mL of the respective cements were added to 96-well tissue culture plates ...
Looking for online definition of glass ionomer cement in the Medical Dictionary? glass ionomer cement explanation free. What is glass ionomer cement? Meaning of glass ionomer cement medical term. What does glass ionomer cement mean?
The Portland Cement Company site is 71 acres of land near 1000 South Redwood Road in Salt Lake City. The site is situated in a mixed commercial and industrial area bordered by agricultural land.. Between 1963 and 1983, approximately 500,000 cubic yards of cement kiln dust (CKD) were collected from the Portland Cement Plant in Salt Lake City and deposited as fill material at the site. CKD contains several heavy metals, including arsenic, lead, chromium, and cadmium.. The Environmental Protection Agency (EPA) placed the site on the Superfund National Priorities List (NPL) in June 1986. Documents: ...
TY - JOUR. T1 - Biomimetic remineralization of resin-bonded acid-etched dentin. AU - Tay, F. R.. AU - Pashley, D. H.. PY - 2009/8/1. Y1 - 2009/8/1. N2 - Degradation of denuded collagen within adhesive resin-infiltrated dentin is a pertinent problem in dentin bonding. A biomimetic remineralization scheme that incorporates non-classic crystallization pathways of fluidic amorphous nanoprecursors and mesoscopic transformation has been successful in remineralizing resin-free, acid-etched dentin, with evidence of intrafibrillar and interfibrillar remineralization. This study tested the hypothesis that biomimetic remineralization provides a means for remineralizing incompletely infiltrated resin-dentin interfaces created by etch-and-rinse adhesives. The remineralization medium consists of a Portland cement/simulated body fluid that includes polyacrylic acid and polyvinylphosphonic acid biomimetic analogs for amorphous calcium phosphate dimension regulation and collagen targeting. Both ...
The gold standard for bone replacement today, autologous bone, suffers from several disadvantages, such as the increased risk of infection due to the need for two surgeries. Degradable synthetic materials with properties similar to bone, such as calcium phosphate cements, are a promising alternative. Calcium phosphate cements are suited for a limited amount of applications and improving their physical properties could extend their use into areas previously not considered possible. For example, cement with increased strength could be used as load bearing support in selected applications. The focus of this thesis is, therefore, on how the physical properties of acidic calcium phosphate cements (brushite cements) are affected by compositional variations, with the ultimate aim of making it possible to formulate brushite cements with desired properties.. In this thesis a method to measure the porosity of a cement was developed. ...
The gold standard for bone replacement today, autologous bone, suffers from several disadvantages, such as the increased risk of infection due to the need for two surgeries. Degradable synthetic materials with properties similar to bone, such as calcium phosphate cements, are a promising alternative. Calcium phosphate cements are suited for a limited amount of applications and improving their physical properties could extend their use into areas previously not considered possible. For example, cement with increased strength could be used as load bearing support in selected applications. The focus of this thesis is, therefore, on how the physical properties of acidic calcium phosphate cements (brushite cements) are affected by compositional variations, with the ultimate aim of making it possible to formulate brushite cements with desired properties.. In this thesis a method to measure the porosity of a cement was developed. ...
Everything you need to know about Portland Cement, Raw Materials, Composition and Necessity of Proportioning. This is an Ultimate Guide to Portland Cement.
ABSTRACT BENEFIT-COST ANALYSIS OF USING CLASS F FLY ASH-BASED GREEN CEMENT IN MASONRY UNITS by KHALED SHWEKAT August 2015 Advisor: Dr. Hwai-Chung Wu Major: Civil engineering Degree: Doctor of Philosophy The Portland cement concrete is the most popularly used building material around the world. However, there are major drawbacks associated with Portland cement, such as the emission of greenhouse gasses and high-energy consumption from cement production. Therefore, Portland cement concrete has many disadvantages that can only be overcome by being replaced with new materials such as fly ash-based green cement. Recycling fly ash and using it to replace cement has positive impacts on our environment, such as conserving landfill spaces, reducing CO2 emissions, and saving energy. Fly ash can be further recycled into value-added building products by using fly ash-based green cement. Two experimental works were undertaken to evaluate the durability performance of fly ash-based green cement mortar for freezing
TY - JOUR. T1 - Water-dependent interfacial transition zone in resin-modified glass-ionomer cement/dentin interfaces. AU - Tay, F. R.. AU - Sidhu, S. K.. AU - Watson, T. F.. AU - Pashley, D. H.. PY - 2004/8. Y1 - 2004/8. N2 - The function of the interfacial transition zone (absorption layer) in resin-modified glass-ionomer cements bonded to deep dentin remains obscure. This study tested the hypotheses that the absorption layer is formed only in the presence of water derived from hydrated dentin and allows for better bonding of resin-modified glass-ionomer cements to dentin. Ten percent polyacrylic acid-conditioned, hydrated, and dehydrated deep dentin specimens were bonded with 2 resin-modified glass-ionomer cements and sealed with resins to prevent environmental water gain or loss. A non-particulate absorption layer was identified over hydrated dentin only, and was clearly discernible from the hybrid layer when bonded interfaces were examined with ...
The study investigated ingress of Cl- ions and their effects on the compressive strength development of a pozzolana based cement. The cement was made by blending Ordinary Portland Cement (OPC) with selected calcined clays. X-Ray Fluorescence (XRF), Atomic Absorption Spectroscopy (AAS) and flame photometry chemical analysis were carried out as a preliminary test to determine the chemical composition of the sampled clays. It was found that only one of the sampled clays had a sum of Al2O3, SiO2 and Fe2O3 above 70 percent. Sampled clays were activated at a temperature of 700 0C for one and two hours separately and also at 800 0C for one hour. Pozzolanicity test was carried out on the sampled clays using the conductometric method. Clays calcined at 800 0C for one hour exhibited the highest level of pozzolanicity. The calcined clay at 800 0C for one hour was blended with OPC at replacement levels of 25, 30, 35, 40, 45 and 50 percent by weight of the clay to make test cements labeled PCC25, PCC30, ...
Capping of the exposed pulp is indicated for reversible pulp tissue injury after physical or mechanical trauma in developing or mature teeth.The response to direct pulp capping with materials such as MTA or NEC is the formation of dentin barrier, resulting from the recruitment and proliferation of undifferentiated cells.. Different materials can be used to induce dentinal bridge formation.MTA has been introduced as a proper material to induce dentinal bridge formation,with greater mean thickness of dentinal bridge and less inflammation compared to traditional materials like calcium hydroxide. Although biocompatible, MTA has a poor handling characteristic, delay setting time, off-white color, and it is almost expensive.The Novel Endodontic Cement (NEC) has been introduced to combine reasonable characteristics of MTA with appropriate chemical properties, setting time, color, and handling characteristics.. The extracellular matrix (ECM) of pulp comprises a variety of proteins and polysaccharides, ...
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The Portland railway line is a railway line in south-western Victoria, Australia. It runs from the main Western standard gauge line at Maroona through Hamilton to the port town of Portland. The line was built as 1,600 mm (5 ft 3 in) (broad gauge) from Ararat to Maroona, Hamilton, Heywood and Portland in 1877. It was converted to standard gauge in 1995. Freight operator Pacific National indefinitely suspended all rail services to the town of Portland in 2004, impacting local companies including Portland Aluminium, transport company Kalari, and freight broker Anchor Logistics. Portland container traffic was conveyed between Maroona and Portland on grain services twice a week, but Pacific National said that due to the drought there were no trains to attach the loading to. On the route the price differential between rail and road is $12.97 per tonne in rails favour. Pacific National closed their Portland operations in March 2008, with GrainCorp leasing a limited number of locomotives and rolling ...
Laboratory-scale experiments were performed to understand the porosity change of cement pastes. The cement pastes were prepared using commercially available Type-I ordinary Portland cement (OPC). As the cement pastes were exposed in water, the porosity of the cement pastes sharply increased; however, the slow decrease of porosity was observed as the dissolution period was extended more than 50 days. As expected, the dissolution reaction was significantly influenced by w/c raito and the ionic strength of solution. A thermodynamic model was applied to simulate the porosity change of the cement pastes. It was highly influenced by the depth of the cement pastes. There was porosity increase on the surface of the cement pastes due to dissolution of hydration products, such as portlandite, ettringite, and CSH. However, the decrease of porosity was estimated inside the cement pastes due to the precipitation of cement minerals.. Copyright © 2010 by ASME ...
Calcium phosphate cements are used in medicine to fill bone defects or give support to screws and plates in fracture fixation. The cements are formed via mixing a powder with water and the mixture harden through a dissolution-precipitation reaction. Today the cement mixing is performed in the operating room and consists of several complicated steps that need to be performed under sterile conditions. This renders the mixing a risk factor, potentially leading to harm for the patient e.g. unsatisfactory healing or infection. To reduce this risk, premixed cements have been developed using glycerol as mixing liquid. The premixed cement sets when it is exposed to body liquids. Therefore, premixed cement can be delivered to the operating room in prefilled syringes ready for use, thus eliminating the mixing step.. The aim of this thesis is to describe differences between premixed and water-mixed cements and their advantages and drawbacks. The ...
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... You may not even notice potassium silicate concretes most amazing performance feat. Properly mixed and applied, you wont notice any sign of weakening after it is exposed to some of the strongest acids for days, weeks, or months on end. Unlike Portland Cement based concrete, potassium silicate based polymer concrete is resistant to immersion in all concentrations of nitric, hydrochloric, phosphoric acids, and sulfuric acids, including oleum. And with compressive strengths hovering around 4,000 psi, with appropriate design, it can be used for structural applications such as footings and foundations in acid-contaminated "brownfield" sites. What makes potassium silicate concrete resistant to acid? Lets first examine why Portland Cement based concrete is not resistant to acid. Portland Cement, the binder that holds the aggregate in concrete together is an alkaline material that reacts with acid. This reaction between the Portland Cement ...
This study evaluates the biological properties of a new pulp capping material developed from Portland cement. This study was conducted on 48 teeth in 4 dogs (12 teeth/dog). The dogs were classified into two equal groups (n=24 teeth) according to the evaluation period including: group A (3 weeks) and group B (3 months). Each group was further subdivided into three equal subgroups (n=8 teeth) according to the capping material including: subgroup 1: mineral trioxide aggregate (MTA), subgroup2: Portland cement+10% calcium hydroxide+20% bismuth oxide (Port Cal) and subgroup 3: Portland cement+bismuth oxide. After general anesthesia, a class V buccal cavity was prepared coronal to the gingival margin. After pulp exposure and hemostasis,the capping materials and glass ionomer filling were placed on the exposure sites. All histopathological findings, inflammatory cell count and dentin bridge formation were recorded. Data were analyzed statistically. After 3 months, the histopathological picture of the ...
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Using ground granulated blast-furnace slag (GGBS) under different alkaline conditions, we studied the mechanisms and extents of Cr(VI) reduction and sorption and compared them to reactions with Portland cement (PC). We also investigated the effects of mixing PC/GGBS ratios on Cr(VI) dissolution after carbonating the substrates. We observed a complete sorption and reduction of Cr(VI) to Cr(III) in a GGBS-in-Ca(OH)2 solution (pH > ~12.5) after 10 h, whereas in distilled water (pH = ~11.5) GGBS exhibited only marginal sorption and reduction (20%). Cr reactions with dissolved ions in supernatants derived from GGBS indicated that the anions dissolved from GGBS act as a reducing agent for Cr(VI) in a Ca(OH)2 solution. Soft X-ray absorption microscopy identified a partial reduction of Cr(VI) to Cr(III) on the GGBS surface. The carbonation of pure PC paste substantially increased the amount of dissolved Cr(VI) in a solution phase whereas a 5 wt % replacement of PC with GGBS significantly reduced the amount
ASTM C452 accelerated sulfate resistance tests were performed using 10 ASTM Type V portland cements mixed with sufficient gypsum to obtain 7% sulfur trioxide co
The results of a NIOSH investigation at a portland cement manufacturing plant (SIC-3241), carried out at the request of the local labor union and in accordance with the Health Hazard Evaluation (HHE) program, were reported. The HHE request pertained to the water blasting of the preheat tower, carried out by two kiln assistants on each of four rotating shifts. A total of 34 wet bulb globe temperatu
Applied Materials and Electronics Engineering: Porosity and Permeability Analysis of Sludge Stabilised with Fly Coal Ash and Portland Cement
Portland Cement. Fine power made from limestone. Used to make concrete and mortar. Commonly sold in 94 lb. bags (1 cubic foot). Sand. Fine aggragate less than 1/4" in size. Gravel. Course Aggregrate greater than 1/4" and commonly less than 1 1/2" in size. ...
A dental cement for providing a fixing for a temporary dental prosthesis or appliance is provided. The dental cement includes a metal oxide, a metal hydroxide and an aqueous solution of a polycarboxylic acid. The cement may also include a fatty acid, a polyvinylacetate emulsion and a dimer fatty acid. One or more plasticizers may also be included. Residual dental cement may be removed from the temporary dental prosthesis or appliance when desired by using a dissolving bath containing a metal hydroxide and a chelating agent.
These systems comprise four approaches of bonding to dental hard tissues: one three-step etch-and-rinse system (Adper Scotchbond Multi-Purpose - MP); three two-step etch-and-rinse selleck chemical adhesive systems (Adper Single Bond 2 �C SB; Excite �C EX; One-Step �C OS); one two-step self-etch primer system (Clearfil SE Bond �C SE); and two single-step self-etch adhesives (Adper Prompt �C AP; One-Up Bond F �C OU). In addition, one primer+bond group (SE-PB), consisting of specimens obtained after mixing and polymerization of the primer and bond components of Clearfil SE Bond systems, was tested. The composition, batch number, and manufacturer of each adhesive system are listed in Table 1. Table 1. Materials employed in the study and main composition*. Three disk specimens were prepared for each adhesive system and for the primer+bond mixture.. The uncured adhesives (approximately 200 ��L) were directly poured into a brass mold (5.8 mm ...
Portland /ˈpɔːrtlənd/ is a small city in Victoria, Australia, and is the oldest European settlement in the state. It is also the main urban centre in the Shire of Glenelg and is located on Portland Bay. The bay was named in 1800 by the British navigator James Grant, who sailed in the Lady Nelson along the Victorian coast. "I also distinguished the Bay by the name of Portland Bay, in honour of His Grace the Duke of Portland," wrote Grant. The bay, the only deep sea port between Adelaide and Melbourne, offers a sheltered anchorage against the often wild weather of Bass Strait. By the early 19th century, whalers and sealers were working the treacherous waters of Bass Strait and Portland Bay provided good shelter and fresh water which enabled them to establish the first white settlement in the area. Whaling captain William Dutton is known to have been resident in the Portland Bay area when the Henty clan arrived and is said to have provided seed potatoes for the Henty garden. In 1834, Edward ...
Portlands reign as Americas largest bastion of fluoride-free water is facing a revolt.. A newly formed and hush-hush coalition of more than 50 high-profile organizations is quietly lobbying the Portland City Council to add fluoride to a drinking water supply serving about 900,000 residents - not just in Portland but also Gresham, Tigard and Tualatin, which buy city water through wholesale contracts.. The coalition could make a public pitch in coming weeks but faces a short window for political support. It has the backing of city Commissioner Randy Leonard, who oversees the Portland Water Bureau but leaves office in less than five months.. Portland is the largest city in the country without fluoridated water. Cities such as San Jose and San Diego in recent years have approved or made the switch in hopes of reducing tooth decay, particularly among children.. In Portland, though, residents have voted against fluoridation three times, most recently in 1980.. "This falls under the category of ...
Causa Oregon is leading a rally from City Hall to the Portland Building for a hearing urging our city council members to pass a resolution explicitly stating that Portland refuses to work with Immigration and Customs Enforcement (ICE). Join them and stand up for immigrant rights. EMILLY PRADO.#HeretoStay: Portland Hearing,City Hall, Portland, OR, Wed., March 22, 1 p.m. 2017
Looking for information on Legg-Calve-Perthes Disease in Portland? We have compiled a list of businesses and services around Portland that should help you with your search. We hope this page helps you find information on Legg-Calve-Perthes Disease in Portland.
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Acrylic Cement, Acrylic Cement Suppliers Directory - Find variety Acrylic Cement Suppliers, Manufacturers, Companies from around the World at portland cement ,cement plants ,cement board, Adhesives & Sealants
Headline: Bitcoin & Blockchain Searches Exceed Trump! Blockchain Stocks Are Next!. Latest industry research report on Fiber Cement Market. Fiber cement is a composite of Portland cement, sand, wood fibers, and water used in construction activities for roofing and fade products. It is an environment friendly material and has long lasting properties owing to the presence of fiber reinforcement in the cement. Fiber cement was developed around 1980 as an alternative to asbestos-based building materials.. Fiber cement products are known for their high durability, flexibility, resistance to water, termites, chemical corrosion and fire. It is used mainly in wet areas where water resistance is required as substrates and internal & external cladding. The low maintenance of these products makes them an ideal choice for professional builders, designers, architect and homeowners.. Get Free Sample Report Of Fiber Cement Market @ ...
Descrição: Objetivo: Este estudo avaliou a influência de diferentes métodos de pré-tratamento da superfície dentinária sobre a resistência de união à microtração e modo de falha de um sistema adesivo de frasco único. Metodologia: Vinte e quarto terceiros molares foram incluídos em resina acrílica e desgastados... ...
Nowadays, one of the most popular ways to get a more sustainable cement industry is using additions as cement replacement. However, there are many civil engineering applications in which the use of sustainable cements is not extended yet, such as special foundations, and particularly micropiles, even though the standards do not restrict the cement type to use. These elements are frequently exposed to the sulphates present in soils. The purpose of this research is to study the effects in the very long-term (until 600 days) of sulphate attack in the microstructure of micropiles grouts, prepared with ordinary Portland cement, fly ash and slag commercial cements, continuing a previous work, in which these effects were studied in the short-term. The microstructure changes have been analysed with the non-destructive impedance spectroscopy technique, mercury intrusion porosimetry and the
This next generation of the original PANAVIA SA Cement offers stronger shear bond strengths; faster light-curing time; and room temperature storage. Its EASY CLEANUP reduces the risk of gingival trauma, making it deal for indirect procedures... PANAVIA SA Cement Plus has been developed for cementing indirect restorations made of metal, all-ceramic (zirconia), hybrid ceramics and composites. This self-adhesive resin cement does not require phosphoric acid treatment or any special primer or adhesive for bonding to tooth structure. Obtaining a strong, durable bond to zirconia can be challenging. PANAVIA SA Cement Plus, with its high concentration of the original MDP, bonds to zirconia chemically, as well as micromechanically. Bond strengths are virtually unaffected by the dryness or wetness of the tooth structure. It also contains a new Radical Amplifier, which increases the rate of polymerization, shortens the light-curing time, and increases ...
A process is disclosed for producing cement clinker, comprising the steps of: a) providing a mixture of ground calcareous materials and ground argillaceous materials; b) heating the mixture of step a) to a temperature sufficient to calcine and fuse the ground materials to form the cement clinker, and thereby producing an exhaust gas containing CO 2 ; c) catalysing the hydration of at least a portion of the CO2 contained in the exhaust gas and producing a solution containing bicarbonate ions and hydrogen ions; and d) adding to the solution obtained in step c) metal ions, and adjusting the pH of the solution to precipitate a carbonate or said metal. Preferably, the metal ions are Ca ++ obtained from the dissolution of a material selected from the group consisting of CaCl 2 , cement kiln dust and sea salts and the carbonate is CaCO 3 which is advantageously recycled into the process by adding the CaCO 3 to the mixture of step a). A cement plant for performing this process is also disclosed.
Materials that augment bone cell proliferation and osteogenic activity have important therapeutic implications for bone regeneration and for use in skeletal reconstruction and joint replacement. We have studied the growth and interactions of human bone marrow cells on a variety of new cement composites in vitro. These cement materials are composed of calcium-deficient hydroxyapatites, carbonated apatite and amorphous calcium phosphate. Cell proliferation was significantly reduced and cell differentiation increased in the presence of these cements compared with cells cultured on tissue culture plastic. Alkaline phosphatase, one of the markers of the osteoblast phenotype, was dramatically stimulated by 3 of the 4 cements examined between day 4 and day 10, above levels observed following culture of human osteoblasts on plastic alone. Photomicroscopic examination demonstrated growth and close integration of bone marrow cells and 3 of the composites. Longer term marrow cultures ...
Maybe weve come full circle. We are now fully in dentin, and have the choice of what cement and bonding agents to use. At this point you may ask why not just use a traditional self adhesive resin cement or a glass ionomer. The reasons why not, are at least two. The self adhesive resin cements are all dual cure and notoriously suffer from yellowing. Glass ionomers, even the resin modified variety, must contain water and therefore are more soluble than resin cements. Remember we are after a long-term aesthetic result. Yellowing and staining a few years down the road is not acceptable today.The second reason is that veneers are more prone to coming off as opposed to a crown (less retention, particularly lateral forces), recall those of you old enough - what used to happen to veneers in the early 1980s? So for these reasons when it comes to dentin only, go ahead and use a dentin bonding agent. I have fought this battle before with the self adhesive resin ...
OBJECTIVE: The objective of this study was to evaluate the effect of a Biosilicate®, associated with dentin adhesive system, on microtensile bond strength (μTBS) to sound and demineralized dentin. MATERIALS AND METHODS: Eighty sound-extracted molars had their middle occlusal dentin exposed. In forty teeth, dentin was artificially demineralized (pH cycling). Sound and demineralized dentin teeth were separated into four groups (n = 10), according to the substrate treatment before restoration: Group 1-total-etching adhesive Adper TM Single bond 2 (ASB) + Biosilicate®, Group 2-ASB (without Biosilicate®), Group 3-AdheSE self-etching adhesive system (AdSE) + Biosilicate®, and Group 4-AdSE (without Biosilicate ...
Dental cement ingredients offered by Spectrum are the chemical compounds required to produce Zinc Oxide Eugenol, Zinc Phosphate, Polycarboxylate and Glass Ionomer dental cements. These chemicals are available in a wide selection of volumes and sizes, literally from Drops to DrumsTM, to take you from product evaluation through production.
Two-dimensional nuclear magnetic resonance relaxation correlation studies of cement pastes have been performed on a unilateral magnet, the Surface GARField. Through these measurements, the hydration process can be observed by monitoring the evolution of porosity. Characteristic relaxation time distributions have been observed in different cement pastes: fresh white cement, prehydrated white cement and ordinary Portland cement. The observed T-1/T-2 ratio in these cements has been shown to agree with expectations based on high field values. (C)) 2007 Elsevier Inc. All rights reserved.. ...
0002]In the most general sense of the word, a cement is a binder that is a substance which sets and hardens independently, and can bind other materials together. Cements used in construction are characterized as hydraulic or non-hydraulic. The most important use of cement is the production of mortar and concrete--the bonding of natural or artificial aggregates to form a strong building material which is durable in the face of normal environmental effects. Hydraulic cements are materials which set and harden after combining with water, as a result of chemical reactions with the mixing water and, after hardening, retain strength and stability even under water. The key requirement for this is that the hydrates formed on immediate reaction with water are essentially insoluble in water. Most construction cements today are hydraulic, and most of these are based upon Portland cement, which is made primarily from limestone, certain clay minerals, and gypsum, in a ...
Polymer modified calcium phosphate cements made with cement powders of varying tetracalcium phosphate [TTC P] content were prepared using two different molecular weight fractions of poly(acrylic acid)
The 11th annual celebration of beers from all over the planet, including over 160 different beers, food from KOI fusion, Potato Champion, East Burn and others, and free games, with proceeds going to Pet Cross.Portland International Beerfest,North Park Blocks, Portland, Portland, Fri., July 20, 4 p.m., Sat., July 21, 12 p.m. and Sun., July 22, 12 p.m. 2012
U.S. Rep. Chellie Pingree will be joining Landesman when he takes a walking tour of Rockland and meets with artists and community leaders today.. Theyll come to Portland tonight and meet with more artists and community leaders at the Portland Stage Company. On Thursday, theyll take a walk through Portlands Arts District before viewing a play written by Portland police officers and hear poetry written by city employees.. ...
Welcome to the Joint Pain Info Local Pages. Here you can find local information about Carpal Tunnel Syndrome Treatments in Portland, ME. We have compiled a list of businesses and services around Portland, including Orthopedic Surgeons, and Doctors that should help you with your search. Should you wish to find help online, the ads on this page have also been targeted to Physicians & Surgeons in order to better help you find what you are looking for. We hope this page helps satisfy your local needs.
A novel bone cement composed of sintered zinc-calcium-silicate phosphate and hybrid polyalkenoates has been developed. Synthesis and formulation of glass fillers, monomers and polymers as well as formulation of the cement were described. The effects of sintering, polymer content, glass powder/polymer liquid (P/L) ratio and comonomer on compressive strength (CS) and curing time (CT) were investigated. The effects of P/L ratio and comonomers on shrinkage as well as exotherm were also studied. Results show that the experimental cement was 61% higher in CS, 10% lower in diametral tensile strength, 35% lower in flexural strength, 62% less in exotherm, and 68% less in shrinkage, compared to conventional polymethylmethacrylate cement. With increasing polymer content and P/L ratio in the cement formulation CS of the cement increased but CT decreased. Curing time, shrinkage and exotherm of the cement decreased with increasing P/L ratio. It appears that this novel cement may be a ...
The objectives of the program were two-fold: select commercially available thermosetting adhesive systems and formulations that could be used as underwater adhesive systems; and demonstrate the feasibility of converting selected adhesive formulations to capsular adhesive systems thereby insuring improved versatility and logistic properties. As design goals, the selected capsular adhesive systems were required to meet the following requisites: Yield a cure time of 30 seconds or less; bond to both dry and wet (submerged) substrates of wood, metal, and concrete; and, yield a bond strength of 0.5 psi after a 30 second cure. Studies revealed that none of the commercially available systems met all of the contract requirements. Of the systems evaluated, the polysulfides and cyanoacrylates did meet more of the requirements than any of the other systems. Capsular adhesive systems possessing various design goal requirements were developed using the polysulfide, polyester, epoxy and cyanoacrylate systems.(
A bone cement mixer having a cartridge filled with bone cement powder and a monomer well for receiving monomer liquid to be flowed into the bone cement powder. The monomer liquid flows by gravity in a stream near the outer periphery of the bone cement powder. The stream penetrates the bone cement powder and forms a partial cylinder of monomer-rich powder essentially uniformly along the height of the bone cement powder. The powder and liquid are then mechanically mixed to form bone cement.
Objective: The purpose of this in vitro study was to determine the effect of residual caries-disclosing dyes on a dentinal adhesive system and accompanying resin composite, using microleakage as the quantifying criterion. Method and Materials: The dye pretreatment groups (10 teeth in each group, n = 60) were as follows: Group 1, Caries Detector; group 2, Cari-d-tect; group 3, Seek; group 4, Snoop; group 5, To Dye For; and group 6, control (no dye pretreatment). Circular preparations were cut on the facial or lingual surface of each tooth. Caries-disclosing dyes were placed on the preparations; this was followed by treatment with 35% phosphoric acid etchant, application of a Single-Bond adhesive, and insertion of Z-100 hybrid resin composite. Following thermocycling, the teeth were sealed with nail varnish, placed in methylene blue dye, invested in acrylic resin, labeled, and sectioned. Leakage was examined (20× magnification) by dye penetration at the occlusal and gingival surface positions of ...
The invention seeks to provide a cement distributing vehicle, which permits greatly reducing labor, time and cost require for packed cement distribution, permits manufacturing a compact vehicle without sacrifice in the great tank capacity, and permits efficient distribution even to bad distribution condition destinations. In a cement distributing vehicle 1 which comprises a powdery cement accommodating tank 2, an automatic packing machine 3 for packing a predetermined quantity of powdery cement from the power cement accommodating tank, and a flywheel PTO shaft for taking out the engine torque to the outside, and in which the vehicle personnel packs and distributes a required quantity of cement by using the automatic packing means according to an order of a person desiring purchase of packed cement, a generator is connected to the flywheel PTO shaft for power supply from it to vehicle-mounted component devices such as the automatic packing machine.
Masoud Parirokh and Mahmoud Torabinejad. Introduction 284. Portland Cement (PC) 285. Chemical composition 285. Physical properties 286. Antibacterial activity 287. Sealing ability 288. Biocompatibility 288. Cell culture studies 288. Subcutaneous implantation 288. In vivo investigations 289. Clinical applications 289. Limitations 289. Angelus MTA 291. Chemical composition 291. Physical properties 292. Antibacterial activity 293. Sealing ability 293. Biocompatibility properties 293. Cell structure studies 293. Subcutaneous implantation 294. Intraosseous implantation 294. In vivo investigations 294. Clinical applications 295. Bioaggregate (BA) 295. Chemical composition 295. Physical properties 296. Antibacterial activity 296. Sealing ability 296. Biocompatibility 296. Cell culture studies 296. Biodentine (BD) 297. Chemical composition 297. Physical properties 297. Biocompatibility and clinical applications 297. iRoot 298. Chemical composition 298. Physical properties 298. Biocompatibility ...
Although poly(methylmethacrylate) (PMMA) cements are widely used in orthopaedics, they have numerous drawbacks. This study aimed to improve their bioactivity and osseointegration by incorporating strontium-containing borate bioactive glass (SrBG) as the reinforcement phase and bioactive filler of PMMA cement. The prepared SrBG/PMMA composite cements showed significantly decreased polymerization temperature when compared with PMMA and retained properties of appropriate setting time and high mechanical strength. The bioactivity of SrBG/PMMA composite cements was confirmed in vitro, evidenced by ion release (Ca, P, B and Sr) from SrBG particles. The cellular responses of MC3T3-E1 cells in vitro demonstrated that SrBG incorporation could promote adhesion, migration, proliferation and collagen secretion of cells. Furthermore, our in vivo investigation revealed that SrBG/PMMA composite cements presented better osseointegration than PMMA bone ...
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Roberts has held the ride since 2008, when Portland police Sgt. Robert Johnsey died of an accidental gunshot wound to his femoral artery. Johnsey was 37, and left behind a wife and two children.. Less than a year later, the Portland department lost Sgt. Richard Betters after he suffered a heart attack the morning after a tactical call-out. At 52, Betters left a wife and two children.. Roberts, who was a lieutenant in Portland in 2008 when Johnsey died, started the benefit ride to raise money for the family and keep the officers memory alive. The event has since incorporated Betters family, as well, and has typically raised between $2,800 and $3,500 each year in a five-hour period. All of the proceeds are given to the families.. The ride is roughly 60 miles and will wind through Westbrook, Gorham, Standish, Buxton, Hollis, Limington, Cornish, Baldwin, East Sebago and Naples.. ...
This page provides relevant content and local businesses that can help with your search for information on Basal Cell Carcinoma Treatment. You will find informative articles about Basal Cell Carcinoma Treatment, including Cancers And Benign Lesion Of The Eyelids Causes And Treatments. Below you will also find local businesses that may provide the products or services you are looking for. Please scroll down to find the local resources in South Portland, ME that can help answer your questions about Basal Cell Carcinoma Treatment.
This page provides relevant content and local businesses that can help with your search for information on Dacryocystitis Treatments. You will find informative articles about Dacryocystitis Treatments, including Dacryocystitis Tear Duct And Sac Eye Infection. Below you will also find local businesses that may provide the products or services you are looking for. Please scroll down to find the local resources in South Portland, ME that can help answer your questions about Dacryocystitis Treatments.
unanimously (9-0) to restrict the use of toxic pesticides on all lawns and landscapes within the City, both public and private. Passage of the new pesticide ordinance, one of the strongest in the country, represents the culmination of nearly two and a half years of intense debate and discussion between residents, advocates, opponents, and City of Portland officials. Local and national health and environmental groups are praising the City for its diligence in addressing the issue, and its ultimate decision to restrict hazardous pesticide use in the face of insufficient protections from federal and state regulators. Read Beyond Pesticides and the Maine Organic Farmers and Gardeners Associations (MOFGA) op-ed in the Portland Press Herald.. Outside of Maine, the City of Portland now joins neighboring South Portland and other jurisdictions in the state of Maryland (the City of Takoma Park and Montgomery County ), which have taken similar action. Twenty-eight jurisdictions throughout Maine have ...
unanimously (9-0) to restrict the use of toxic pesticides on all lawns and landscapes within the City, both public and private. Passage of the new pesticide ordinance, one of the strongest in the country, represents the culmination of nearly two and a half years of intense debate and discussion between residents, advocates, opponents, and City of Portland officials. Local and national health and environmental groups are praising the City for its diligence in addressing the issue, and its ultimate decision to restrict hazardous pesticide use in the face of insufficient protections from federal and state regulators. Read Beyond Pesticides and the Maine Organic Farmers and Gardeners Associations (MOFGA) op-ed in the Portland Press Herald.. Outside of Maine, the City of Portland now joins neighboring South Portland and other jurisdictions in the state of Maryland (the City of Takoma Park and Montgomery County ), which have taken similar action. Twenty-eight jurisdictions throughout Maine have ...
It is unclear whether it is best to use high-viscosity or low-viscosity cement for fixation of total hip replacement (THR) femoral components. This study examines the influence of cement viscosity on the migration of the Exeter femoral component using roentgen stereophotogrammetric analysis (RSA). Simplex, CMW1 and CMW3 G cements were examined in a total of 46 patients over a 12-month period. The overall pattern of migration for all cohorts was one of subsidence and rotation into valgus. There was no significant difference in any aspect of migration between the groups. In vitro studies demonstrate that low-viscosity cement forms a more stable bone-cement interface. Several groups have examined the in vivo effect of cement viscosity on stem longevity with conflicting results. For a polished, tapered implant that is designed to subside, cement viscosity does not influence the 1-year migration, and it is therefore unlikely to affect long-term outcome.
Cement has been an essential and integral part of construction from the time when a primitive version was developed by the Romans. Currently, Portland cement is the most common type of cement worldwide and was first developed in the 19th Century.
Should a universal adhesive be used with a self- or dual-cured buildup or cement?. Although universal adhesives are typically on the higher end of the pH spectrum of self-etching adhesives, they are still relatively acidic (Figure 2). A common problem of any one-step self-etching adhesive is they will leave an acidic surface following application to tooth structure. This acidic surface will interfere with the amine-based chemical reaction used to cure self-cured or dual-cured resins.17 In other words, application of an acidic universal adhesive to tooth structure can prevent curing of a self-cured resin cement or buildup material placed on top of it. In some cases, this may cause debonding of a buildup, post or fixed restoration.. There are two methods to avoid this possible failure. The first is to use a dual-cure activator with the universal adhesive. This activator is typically sold with the universal adhesive and can be mixed in a 1:1 ratio with the ...
BY ERNEST ALAN MEYER. At Portland City Council, plans are being debated for treating water from the Bull Run watershed to prevent potentially human-infective cryptosporidium (crypto) oocysts from entering the Portland water supply. My research into treating water for crypto as a microbiology professor at Oregon Health & Science University may provide some insight that decision-makers can take into consideration.. Only two of the 15 known cryptosporidium species (there may be more) infect humans. These two specials can infect either humans, or humans and cattle. The other crypto species can infect a variety of other animals, birds and lizards, but not humans. Thus, even though the infective form of this protozoan - the oocyst - may be present in up to an estimated 87 percent of surface waters in this country, most dont cause human infection.. The Bull Run watershed, the prized source of Portlands water, is highly protected, both from humans and from grazing cattle. The only fecal organisms ...
Rick Miller, co-founder of the Rogue Venture Partners equity fund and a founder of the Avamere Group, (shown here in 2005) and wife Erika were awarded the Simon Benson Award for Philanthropy by Portland State University on Tuesday. The Millers were behind an anonymous $8 million gift to the PSU that kicked-off a $60 million effort to renovate and expand the universitys business school to put it on par with competitors like the University of Oregon and University of Washington.. Portland State University held its annual fundraising gala Tuesday night. The event raised a record $1.2 million and answered a lingering question in the philanthropic community: Who made the anonymous $8 million gift to Portland States business school this spring?. The gift kick-started a $60 million effort to renovate and expand the universitys business school to put it on par with competitors like the University of Oregon and University of Washington. It will nearly triple the size of the business schools ...
Wes Loucks, a retired Portland Fire & Rescue Firefighter of 32 years, and his wife Belinda founded the Portland Firefighter Stairclimb when both of their young grandsons were born with CF. CF is a chronic genetic disease impacting a childs lung and digestive system. Currently, more than 30,000 children in American have CF. In the 1950s, few children with CF lived to attend elementary school. Today, advances in research and medical treatments have further enhanced and extended life for children and adults with CF. However, there is no cure for CF. Wes is now calling on his friends, firefighters and community to help raise money for research that will aid in finding the cure ...
Annual OHSU Colloquium on Neuromuscular Disorders is organized by Oregon Health And Science University (OHSU) and will be held on Feb 17, 2018 at Portland State University Collaborative Life Sciences Building, Portland, Oregon, United States of America.
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in Journal of the European Ceramic Society (2006), 26(16), 3789-3797. Concurrently to research conducted on ordinary Portland cement (PC), new types of binders were developed during the last decades. These are formed by alkali-activation of metakaolin or ground-granulated ... [more ▼]. Concurrently to research conducted on ordinary Portland cement (PC), new types of binders were developed during the last decades. These are formed by alkali-activation of metakaolin or ground-granulated blast furnace slag (GGBFS) and are named, respectively, geopolymers (GP) or alkali-activated slag (AAS). Four different cementitious materials were synthesised: PC, AAS, GP, and a mix GP-AAS and fully compared about their compositions and (micro)-structures. X-ray diffraction has revealed the presence of semi-crystalline C-S-H gel binding phase in PC while AAS, GP and GP-AAS are nearly amorphous. Progressive structural changes have been observed between the different samples by means of infrared spectroscopy, ...
We developed a magnetic measurement method to measure the moisture content and hydration condition of mortar as a magnetic mixture material. Mortar is a mixture of Portland cement, sand, and water, and these materials exhibit different magnetic properties. The magnetization-magnetic field curves of these components and of mortars with different moisture contents were measured, using a specially developed high-temperature-superconductor superconducting quantum interference device. Using the differences in magnetic characteristics, the moisture content of mortar was measured at the ferromagnetic saturation region over 250 mT. A correlation between magnetic susceptibility and moisture content was successfully established. After Portland cement and water are mixed, hydration begins. At the early stage of the hydration/gel, magnetization strength increased over time. To investigate the magnetization change, we measured the distribution between bound and free water in the mortar in the early stage by ...
El Archivo Digital UPM alberga en formato digital la documentacion academica y cientifica (tesis, pfc, articulos, etc..) generada en la Universidad Politecnica de Madrid.Los documentos del Archivo Digital UPM son recuperables desde buscadores: Google, Google Academics, Yahoo, Scirus, etc y desde recolectores OAI: E-ciencia, DRRD, Recolecta (REBIUN-FECYT), Driver, Oaister, etc.
Materials and Methods: Flat mid-coronal dentin surfaces of extracted third molars (n = 28) were subjected only to grinding with a 600-grit SiC paper for 1 min (sound dentin S, n = 14) or additionally to erosive pH cycling with a cola-based soft-drink (eroded dentin E, n = 14). After acid etching, rinsing, and air drying, S and E were rehydrated with 1.5 μl of 2% CHX (S2%, n = 7; E2%, n = 7) or of distilled water (control SC, n = 7; EC, n = 7). Composite buildups were incrementally constructed with Filtek Z350 following Adper Single Bond 2 application. Specimens were sectioned into beams, which were subjected to microtensile testing immediately or after 6 or 12 months of aging. Fractured surfaces were observed under a digital microscope (50X magnification). Microtensile bond strength (μTBS) (MPa) was analyzed by three-way ANOVA and Tukeys tests (α = 0.05) and failure mode by the Kruskal-Wallis test (α = 0.05 ...
Objectives: Evaluate the performance of two self-etching adhesives clinically. Methods: Eighty-four Class V restorations were placed in 21 patients in need of 2, 4 or 6 restorations in incisors, canines and premolars. The retention relied only on the adhesive (no mechanical retention). The two evaluated adhesives were iBond NG plus B(IBSE)(Heraeus Kulzer GmbH) and Clearfil SE (CLSE)(Kuraray), and the composite was Venus (Heraeus Kulzer GmbH). One week after placement, the patients were recalled for baseline evaluation. Following the baseline evaluation, the patients were recalled and evaluated after 3 months, 1 year, 2 years and 4 years using similar evaluations. Results: At the 4-year evaluation, 4 patients did not show up for evaluation. The remaining 17 patients had originally received 66 restorations (33 of each adhesive). Of these restorations, 8 had been lost during the 4 years (4 IBSE and 4 CLSE). A noticeable finding was that two of the restorations (1 IBSE and 1 ...
Bioceramics 19: The Effect of Lif-Maleic Acid Added Calcium Aluminate Bone Cement and Ca-PMMA Composite Bone Cement on Bone Regeneration in Rat Calvarial Defects
Polyacrylic Acid Sodium Salt(PAAS) is innoxious and soluble in water, PAAS can be used in situations of alkaline and high concentration without scale sediment.
For several decades, techniques for modifying the surface of steel pipes were practiced with varying results. In addition, these methods did not address either the hydrophobicity of the carbon steel or steel/cement interfacial bond, other than the use of surfactants in spacers and cement slurry. SCIN offers an economical solution to this issue by achieving a superhydrophilic pipe surface that is chemically reactive to Portland cement, allowing an effective bond to cement.
Hi Shady, I was just looking at all of your posts and want to add something to this conversation. I was just reading, dont remember where, that the best mix for in between stones like yours is sand with some portland cement mixed in at a rate of 8 parts sand to one part cement. It will give stability to the shifting that occurs during winter of the stones. It sounded like a good idea to me. I am all for the combining of smaller beds into larger ones too. It saves time mowing between them and looks better too. I am sure you will come up with wonderful plantings but would use hellebores in there. They can take quite a bit of sun ...
The term ferrocement is most commonly applied to a mixture of Portland cement and sand reinforced with layers of woven or expanded steel mesh and closely-spaced small-diameter steel rods rebar. It can...
From a crisis management perspective, the primary responsibility of the Metropolitan Police was to resolve the crisis, and do so in a way that would minimize the damage to themselves and the government, while maximizing the opportunities that were presented. This means that they were responsible for more than simply catching the Ripper - they were also responsible for reassuring the public, helping to ease public panic, and protecting their reputation. While the Metropolitan Police did as good of a job at trying to capture the Ripper as could be expected of them, given their level of technological and criminological sophistication, they consistently failed to minimize the damage not catching the Ripper had on their organization, and they completely lost control over their crisis communications. The result of their failure to control the crisis manifested itself in many ways. The public lost confidence in the Police. The upper echelons of the police were shaken up, with resignations of many of ...

Low Intensity Blue Light Treatment of Seasonal Affective DisorderLow Intensity 'Blue Light' Treatment of Seasonal Affective Disorder

Curing Lights, Dental. Light sources used to activate polymerization light-cured orthodontic adhesives (DENTAL CEMENTS). Degree ... Light adaptation is the adjustment of the eye when the light threshold is increased; DARK ADAPTATION when the light is greatly ... Centers for Disease Control-type light traps equipped with high-intensity light-emitting diodes as light sources for monitoring ... a new light therapy device with more blue light (blue enriched polychromatic light) was tested for its efficacy to treat SAD. ...
more infohttps://www.bioportfolio.com/resources/trial/63578/Low-Intensity-Blue-Light-Treatment-of-Seasonal-Affective-Disorder.html

H2Ortho=Bond | Zest Dental SolutionsH2Ortho=Bond | Zest Dental Solutions

Dental Product Shopper delivers practical, unbiased product information. Our peer to peer product reviews help you select the ... This light-cured adhesive works with light-cured, auto-cured, and dual-cured composite cements. H2O Ortho=Bond is excellent for ... Your Go-To Cement Makes Work EZ. Zest Dental Solution s Cem EZ™, released last year, can be your go-to product when you need ... Screws and Cement-Things of the Past for Prostheses?. Zest Dental Solutions knows full-arch implant attachment solutions-it has ...
more infohttps://www.dentalproductshopper.com/h2orthobond

Patent EP1663115B1 - Dental compositions and methods with arylsulfinate salts - Google PatentsPatent EP1663115B1 - Dental compositions and methods with arylsulfinate salts - Google Patents

The polymerizable compositions are useful as hardenable dental compositions. ... modified glass ionomer cements or adhesives that can be cured in bulk without the application of light or other external curing ... Example 5 was also evaluated in the "Light-Cure" mode (i.e., with exposure to an external dental curing light) for Compression ... When used as primers, adhesives, or cements, the dental compositions can be utilized for adhering a restorative (cured or ...
more infohttp://www.google.co.uk/patents/EP1663115B1

A candid appraisal of the state of the art for composites, adhesives, and cements in 2009 | Dental EconomicsA candid appraisal of the state of the art for composites, adhesives, and cements in 2009 | Dental Economics

Most resins cure with a light of the same wavelength. Nearly all resin-based composites can be finished and polished to a ... The first resin-modified glass ionomer cement, RelyX Luting Cement from 3M ESPE, has proven itself as an excellent routine ... A candid appraisal of the state of the art for composites, adhesives, and cements in 2009. There has been a significant amount ... Bread-and-butter dentistry demands predictable and well-proven resin-based composites, adhesive agents, and cements. All of ...
more infohttps://www.dentaleconomics.com/science-tech/article/16389137/a-candid-appraisal-of-the-state-of-the-art-for-composites-adhesives-and-cements-in-2009

Preparation of an Awake Mouse for Recording Neural Responses and Injecting Tracers | ProtocolPreparation of an Awake Mouse for Recording Neural Responses and Injecting Tracers | Protocol

Apply the primer for dental cement to the skull surface using applicator. Spread adhesive with new applicator. Cure the ... Note: Do not use too much cement or it will not harden evenly. Cure the cement with a UV light-gun (3-4 cycles from multiple ... Applicators for dental cement. Kerr Optibond. 24680. 200/pk. Dental Cement. Charisma, Heraeus Kulzer. 66000085. 4gm Syringe ... Adhesive for dental cement. Kerr Optibond. 25882. 8 mL bottle. ... Economy UV Curing Light. Henry Schein. CU-80. Head-post. Built ...
more infohttps://www.jove.com/video/3755/preparation-an-awake-mouse-for-recording-neural-responses-injecting

New Dental Products & Reviews | Dental Product ShopperNew Dental Products & Reviews | Dental Product Shopper

Make Dental Product Shopper your first stop when researching dental products. ... Be the first to know about new dental products added to our online catalog! ... Biscos TheraCem is a self-etching, dual-cured, self-adhesive resin cement that is exclusively... ... VALIANT™ Multispectral Curing Light VISTA DENTAL PRODUCTS. Multispectral, uniform beam through 395-500 nm wavelength range ...
more infohttps://www.dentalproductshopper.com/new-products

Patent US5367002 - Dental composition and method - Google PatentsPatent US5367002 - Dental composition and method - Google Patents

The composite compositions formed are useful as cement, liner, base, restorative, pit and fissure sealants, and/or core build- ... The invention provides dental composite compositions formed by mixing a curable liquid composition with a powder in preselected ... intermediate solids concentrations are provided for adhesive dental cements used under light-transmitting glass-ceramic inlays ... These mixtures are cured by exposure to visible light. In basing applications the dental compositions are positioned under ...
more infohttp://www.google.com/patents/US5367002?dq=6008737

Patente US20020132875 - Solid nanocomposites and their use in dental applications - Google PatentesPatente US20020132875 - Solid nanocomposites and their use in dental applications - Google Patentes

The use of the nanocomposite in dental applications substantially influences the dental products strength, durability, ... method of preparing and method of using a nanocomposite in dental applications. ... wherein the dental composite restorative materials can be light cured, self cured or combination thereof. ... wherein the dental application includes use in orthopedic appliances, acrylic prosthesis, bone cements, and adhesives. ...
more infohttp://www.google.es/patents/US20020132875

Post & Core: An Essential and Time Proven Procedure - Newsletters - News | Bisco DentalPost & Core: An Essential and Time Proven Procedure - Newsletters - News | Bisco Dental

... then the light will assist in curing the dual-cured cement.. * If not already completed, etch and apply adhesive to the rest of ... Most self-etch adhesives are incompatible with self-cure and dual-cure cements, whereas, total-etch adhesives create a more ... Light-cure the cement and post. If the post is designed to allow high amounts of light to transmit thru the post (i.e. D.T. ... Most Universal adhesives are not truly dual-cure or dual-cure compatible (unless they have a separate dual/self-cure activator ...
more infohttps://www.bisco.com/post--core-an-essential-and-time-proven-procedure/

Dental Products: Tools, Materials, Supplies, & Equipment | 3M United StatesDental Products: Tools, Materials, Supplies, & Equipment | 3M United States

Browse dental tools, dental supplies, equipment, accessories, & laboratory materials. ... Find dental products designed to improve patients oral care health. ... Dental Curing Lights (6) * Digital Dental Materials (18) * Dental Finishing & Polishing (6) ... Dental Adhesives (13) * Dental Cements (25) * Dental Impression Materials (45) * Digital Dental Impressions (2) ...
more infohttps://www.3m.com/3M/en_US/company-us/all-3m-products/~/All-3M-Products/Dental-Products/Health-Care/?N=5002385+8707795+8711017+8713393+3294857497&rt=r3

OptiBond® All-In-One Single Component Adhesive - Unidose™ Pack - Kerr RestorativesOptiBond® All-In-One Single Component Adhesive - Unidose™ Pack - Kerr Restoratives

OptiBond® All-In-One is a single-component light-cure dental adhesive that provides superior adhesion to all surfaces and ... substrates for both direct and indirect applications - even indirect metal-based restorations when used with NX3 resin cement. ...
more infohttps://www.pattersondental.com/en-CA/Supplies/ProductFamilyDetails/PIF_65816

Dental braces - WikipediaDental braces - Wikipedia

A bracket will be applied with dental cement, and then cured with light until hardened. This process usually takes a few ... Teeth to be braced will have an adhesive applied to help the cement bond to the surface of the tooth. In most cases the teeth ... Removal of the cemented brackets can also be painful. The cement must be chipped and scraped off which can cause severe pain in ... Survey: Most Effective Dental Braces Are Least Attractive Newswise, Retrieved on July 9, 2008. Media related to Dental braces ...
more infohttps://en.wikipedia.org/wiki/Dental_braces

Dental Curing Lights Market Forecast, Trend Analysis & Competition Tracking - Global Review 2018 to 2028Dental Curing Lights Market Forecast, Trend Analysis & Competition Tracking - Global Review 2018 to 2028

Dental Curing Lights Market research report covers detailed information on Global Dental Curing Lights Market Value, Growth, ... as all dental adhesives, adhesive cements, and resin composites use light energy for comprehensive polymerization, which ... The two most common types of dental curing lights are halogen curing lights and dental curing lights. The development of dental ... As different dental procedures require different features in dental curing lights, manufacturers of dental curing lights can ...
more infohttps://www.factmr.com/report/1095/dental-curing-lights-market

A STUDY ON THE RELATIVE SHEAR BOND STRENGTHS OF SOME ADHESIVE RESTORATIVE MATERIALS TO PRIMARY ENAMEL AND DENTINA STUDY ON THE RELATIVE SHEAR BOND STRENGTHS OF SOME ADHESIVE RESTORATIVE MATERIALS TO PRIMARY ENAMEL AND DENTIN

A STUDY ON THE BOND STRENGTHS OF LIGHT-CURING GLASS IONOMER CEMENTS TO DENTAL AMALGAM 1996 May;23(2). ... a conventional glass ionomer cement (Chem-Flex), 2 brands of resin-modified glass ionomer cements (Fuji II LC-I, Vitremer), and ... Seoul National University, Dental Hospital, B1-166 101, Daehak-ro, Jongno-gu, Seoul, 110-744. Tel. +82-70-4145-8875, Fax. +82-2 ... THE SHEAR BOND STRENGTHS OF COMPOSITE RESINS TO GLASS IONOMER CEMENTS BY SURFACE TREATMENT AND ELAPSED TIME 1997 February;24(1) ...
more infohttp://journal.kapd.org/journal/view.php?number=1033

Reattachment of Fractured Tooth Fragment with Fiber Post: A Case Series with 1-Year FollowupReattachment of Fractured Tooth Fragment with Fiber Post: A Case Series with 1-Year Followup

... dental implants, oral pathology, as well as oral and maxillofacial surgery. ... The adhesive was air-thinned and light-cured for 10 seconds. The post was then luted with resin cement (Multilink, Ivoclar, ... Next the adhesive (Prime & Bond NT, Nanotechnology Dental adhesive, Dentsply, St. Paul, MN, USA) was applied on the etched ... Hemostasis was achieved (Figure 2(d)). The post was luted and the fractured segment was reattached with resin cement (Multilink ...
more infohttps://www.hindawi.com/journals/crid/2014/376267/

OptiBond™ XTR Self-Etch, Light-Cure Universal Dental Adhesive | Kerr DentalOptiBond™ XTR Self-Etch, Light-Cure Universal Dental Adhesive | Kerr Dental

... dental adhesive stands apart as the only bonding agent that embodies both the power and durability of a total-etch adhesive and ... The unique chemistry of an enhanced self-etch primer and optimized adhesive in this 2-bottle system brings outstanding bond ... Cements Whether you seek a quality temporary dental cement or permanent option, Kerr Dental has you covered. Our dental cements ... Self-Etch, Light-Cure Universal Dental Adhesive. OptiBond XTR self-etch, light-cure universal dental adhesive stands apart as ...
more infohttps://www.kerrdental.com/kerr-restoratives/optibond-xtr-self-etch-light-cure-universal-dental-adhesive

Bifix QM Dual-Cure Resin Cement, Syringe (10 g) Refill - Voco Dental MaterialsBifix QM Dual-Cure Resin Cement, Syringe (10 g) Refill - Voco Dental Materials

Dual-curing: light-curing permits determination of speed of work and self-curing guarantees complete polymerization of the ... Bifix QM is a dual-cure, resin-based adhesive luting system. Indications include inlays, onlays, full and partial crowns, ... Bifix QM Dual-Cure Resin Cement, Syringe (10 g) Refill - Voco Dental Materials. ... veneers, pins, posts, bridges and adhesive bridges.. *Universal: for nonmetal as well as metal restorations ...
more infohttps://www.pattersondental.com/Supplies/ProductFamilyDetails/PIF_59371

OptiBond™ FL Filled, Light-Cure Total-Etch Dental Adhesive | Kerr DentalOptiBond™ FL Filled, Light-Cure Total-Etch Dental Adhesive | Kerr Dental

... light-cure total-etch dental adhesive that offers a simple two-bottle or unidose delivery with only one light-curing step. This ... Yet, its as simple as it is reliable, with a one-coat primer and a one-coat adhesive that can be applied on wet or dry ... two-bottle primer/adhesive is perfect for all direct restorations and for indirect core build-up. ... surfaces, with superior dental bonding that virtually eliminates postoperative sensitivity. ...
more infohttps://www.kerrdental.com/ca/kerr-restoratives/optibond-fl-filled-light-cure-total-etch-dental-adhesive

Intrapulpal Thermal Changes during Setting Reaction of Glass Carbomer® Using Thermocure LampIntrapulpal Thermal Changes during Setting Reaction of Glass Carbomer® Using Thermocure Lamp

Light curing units for dental applications were developed to initiate photo-polymerization of resin composites, adhesives, ... Light curing glass ionomer cavity-liner cement (glass liner; WP Dental GmbH, Barmstedt, Germany) was used to fix the samples ... permanent dentine + Dyract AP + LED curing light(ii)Group 1B (. ): primary dentine + Dyract AP + LED curing light(iii)Group 2A ... permanent dentine + Fuji II LC + LED curing light(vi)Group 3B (. ): primary dentine + Fuji II LC + LED curing light ...
more infohttps://www.hindawi.com/journals/bmri/2016/5173805/

US Patent # 9,668,946. Dental materials based on monomers having debonding-on-demand properties - Patents.comUS Patent # 9,668,946. Dental materials based on monomers having debonding-on-demand properties - Patents.com

The invention relates to a dental restorative material which comprises a thermolabile or photolabile polymerizable compound of ... Preparation of a Light-Curing Adhesive Based on the Phosphoric Acid Methacrylate MATPA from Example 1 An adhesive was prepared ... properties and their use as monomer components in dental materials, in particular for preparing adhesives and cements. Adhesive ... preferably adhesives or cements, particularly preferably self-etching adhesives or cements. The invention is explained in more ...
more infohttp://patents.com/us-9668946.html

Dental Cement Market to Record Study Growth by 2024Dental Cement Market to Record Study Growth by 2024

The dental cements are characterized depending upon their physical properties such as moisture tolerance, bonding, flow and ... Ideal dental cement facilitates the biological, clinical, esthetic, and physical requirements during its applications in ... Dental cements are hard, brittle materials formed by mixing two or more components together used for the restoration and ... On the basis of polymerization, they are classified as light curing, chemical curing, and dual curing. The self-adhesive resins ...
more infohttp://prsync.com/transparency-marekt-research/dental-cement-market-to-record-study-growth-by--2032252/

Materials  | Free Full-Text | The Influence of Water Sorption of Dental Light-Cured Composites on Shrinkage Stress | HTMLMaterials | Free Full-Text | The Influence of Water Sorption of Dental Light-Cured Composites on Shrinkage Stress | HTML

The shrinkage stress was measured immediately after curing and after: 0.5 h, 24 h, 72 h, 96 h, 168 h, 240 h, 336 h, 504 h, 672 ... The contraction stress generated during the photopolymerization of resin dental composites is the major disadvantage. The water ... Water sorption/solubility of dental adhesive resins. Dent. Mater. 2006, 22, 973-980. [Google Scholar] [CrossRef] [PubMed] ... of water sorption on the development of setting shrinkage stress in traditional and resin-modified glass ionomer cements. Dent ...
more infohttps://www.mdpi.com/1996-1944/10/10/1142/htm

Oral Care Guide For Teens - Oral Treatments - Filling - Restore decayed tooth - MaterialOral Care Guide For Teens - Oral Treatments - Filling - Restore decayed tooth - Material

To increase the strength of Glass Ionomer Cement, acrylic resin is added. For this type of material, light curing is required ... Apply dental adhesive material on the prepared tooth cavity.. *Put composite onto the prepared tooth cavity and shape the ... Filling Dental Implant Bleaching Scaling Laminate Veneer Bridge Extraction Crown Endodontic Treatment Orthodontic treatment ... Amalgam has been used as a dental filling material for more than 150 years. ...
more infohttp://www.toothclub.gov.hk/en/en_teens_02_06_01b.html

Why Veneers from Your Cosmetic Dentist in Marysville? - Darby Creek Dental BlogWhy Veneers from Your Cosmetic Dentist in Marysville? - Darby Creek Dental Blog

Cover chips, spaces and stains with porcelain veneers from cosmetic dentists at Maryvilles Darby Creek Dental. ... She adjusts the color of the veneers by varying the shade of the cement. She hardens the cement with a special curing light and ... At the next appointment, the cosmetic dentist in Marysville bonds the veneers in place with a special permanent adhesive. ... Superior Dental Care in Marysville. The professional staff at Darby Creek Dental is very experienced in treating complex dental ...
more infohttps://www.darbycreekdental.com/blog/why-veneers-from-your-cosmetic-dentist-in-marysville/

Most recent papers with the keyword glassionomer | Read by QxMDMost recent papers with the keyword glassionomer | Read by QxMD

... non-light cured) glass-ionomer cements (GICs), two restorative, one "lining" consistency and one adhesive/lining consistency ... The assessment of influence of silver-free, fluor releasing dental materials on dental plaque bacteria quantity. 17 patients ... Of these, 25 were cemented with GIC (GC Luting and Lining cement) and the other 25 using an adhesive resin cement (Smartcem 2 ... with one resin-modified glass-ionomer cement (Fuji II LC) in open-sandwich restorations covered with a light cure composite. ...
more infohttps://www.readbyqxmd.com/keyword/50090
  • This dental material has good adhesive bond properties to tooth structure, allowing it to form a tight seal between the internal structures of the tooth and the surrounding environment. (wikipedia.org)
  • Glass-ionomer cements are based on the reaction of silicate glass-powder (calciumaluminofluorosilicate glass)and polyacrylic acid, an ionomer. (wikipedia.org)
  • Glass ionomers and composite cements are now widely used mainly because of their high retention bond strength and ease of use. (prsync.com)
  • To determine the bond stability and the change in interfacial ultrastructure of a conventional glassionomer cement bonded to dentin, with and without pretreatment using a polyalkenoic acid conditioner. (readbyqxmd.com)
  • This reaction produces a powdered cement of glass particles surrounded by matrix of fluoride elements and is known chemically as Glass Polyalkenoate. (wikipedia.org)
  • Glass ionomer cements act as sealants when pits and fissures in the tooth occur and release fluoride to prevent further enamel demineralisation and promote remineralisation. (wikipedia.org)
  • Complicated crown fractures involving the enamel, dentin, and pulp constitute a major share of all dental injuries and are most common in maxillary central incisors [ 1 , 2 ]. (hindawi.com)
  • The acid produced from this metabolism results in the breakdown of tooth enamel and subsequent inner structures of the tooth, if the disease is not intervened by a dental professional, or if the carious lesion does not arrest and/or the enamel re-mineralises by itself. (wikipedia.org)
  • The polymerizable compositions are useful as hardenable dental compositions. (google.co.uk)
  • My preferred adhesive, 3M™ ESPE™ Scotchbond™ Universal Adhesive, has silane incorporated into the formula, so it can chemically bond to glass ceramic surfaces without a separate ceramic primer. (dentaleconomics.com)
  • Glass-ionomer cement was bonded to the surfaces either with or without polyalkenoic acid conditioning. (readbyqxmd.com)
  • The dental cement includes a metal oxide, a metal hydroxide and an aqueous solution of a polycarboxylic acid. (google.com)
  • The cement may also include a fatty acid, a polyvinylacetate emulsion and a dimer fatty acid. (google.com)
  • Previously, the National Research Development Corporation developed a dental cement which included mixing a zinc oxide powder with an aqueous solution of a polyacrylic acid. (google.com)
  • This core build up dental system includes CoreForms, which can assist in forming core shapes to reduce time and effort associated with the restoration. (kerrdental.com)
  • Dental restoration accessories allow you to focus on your treatment knowing that everything else is taken care of. (kerrdental.com)
  • Glass ionomer cements were initially intended to be used for the aesthetic restoration of anterior teeth and were recommended for restoring Class III and Class V cavity preparations. (wikipedia.org)
  • When glass ionomer cements were first used, they were mainly used for the restoration of abrasion/erosion lesions and as a luting agent for crown and bridge reconstructions. (wikipedia.org)
  • Several important dentists helped to advance dental braces with specific instruments and tools that allowed braces to be improved. (wikipedia.org)
  • Europe is projected to be the second leading contributor to the market growth during the forecast period mainly due to adoption of newer technologies by dentists and rise in dental surgeries. (prsync.com)
  • The professional staff at Darby Creek Dental is very experienced in treating complex dental cases, and the dentists have the manual dexterity, training and artistry to achieve beautiful smiles. (darbycreekdental.com)
  • Adhesives represent one of the most technique-sensitive product categories, so many dentists tend to stick with their chosen adhesives after they've used them for long enough to judge their reliability. (dentaleconomics.com)
  • Ever since a new photoreceptor was discovered with a highest sensitivity to 470-490 nm blue light, it has been speculated that blue light has some advantages in the treatment of Seasonal Affective D. (bioportfolio.com)
  • You will immediately recognize the Kerr Dental difference with effortless removal and minimal post-op sensitivity. (kerrdental.com)
  • Phosphate cements are not completely satisfactory because they are highly acidic and therefore may be harmful to pulp tissue. (google.com)
  • Other characteristics of dental cements include biocompatibility, esthetic properties, patient comfort, and ease of use. (prsync.com)
  • It has been suggested that fiber post luted with resin cement increases the retention of the segment and also provides a monoblock effect [ 4 ]. (hindawi.com)
  • Kerr Dental is proud to offer the CoreRestore2 complete core buildup system. (kerrdental.com)
  • Kerr Dental knows that this delicate tissue requires specialized care, and offers a variety of products to assist with your soft tissue management needs for many different procedures. (kerrdental.com)
  • Whether you need a temporary retraction system, impregnated retraction cords, or hemostatic agents, Kerr Dental has the soft tissue management solutions you need for your practice. (kerrdental.com)
  • Kerr Dental also features the OptiMix programmable amalgamator, which eliminates the need for control cards and ensures consistency and convenience. (kerrdental.com)
  • In addition, high cost of dental surgical equipment and procedures are likely to restrict the growth of the market during the forecast period. (prsync.com)
  • Out of these, resin cement and glass ionomer are expected to dominate the market during the forecast period mainly due to their high tensile and chemical bonding strength and their ease of use. (prsync.com)
  • Not only can a universal bonding agent eliminate the need to purchase multiple adhesive systems, it can also eliminate the need for other products such as silane or desensitizers. (dentaleconomics.com)
  • The use of the nanocomposite in dental applications substantially influences the dental products strength, durability, longevity, barrier properties and other desirable. (google.es)
  • Registry study to gather more information on the current use of Blue Light Cystoscopy with Cysview (BLCC) in urologists' practices. (bioportfolio.com)
  • Additionally, phosphate cements are typically porous and therefore offer no resistance to the penetration of microorganisms. (google.com)