Light: That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.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).Education, Dental: Use for articles concerning dental education in general.Schools, Dental: Educational institutions for individuals specializing in the field of dentistry.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.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.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 Clinics: Facilities where dental care is provided to patients.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 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.Faculty, Dental: The teaching staff and members of the administrative staff having academic rank in a dental school.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).Dental Anxiety: Abnormal fear or dread of visiting the dentist for preventive care or therapy and unwarranted anxiety over dental procedures.Insurance, Dental: Insurance providing coverage for dental care.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.Dental Plaque: A film that attaches to teeth, often causing DENTAL CARIES and GINGIVITIS. It is composed of MUCINS, secreted from salivary glands, and microorganisms.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 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 Staff: Personnel who provide dental service to patients in an organized facility, institution or agency.General Practice, Dental: Nonspecialized dental practice which is concerned with providing primary and continuing dental care.Dental Amalgam: An alloy used in restorative dentistry that contains mercury, silver, tin, copper, and possibly zinc.Dental Assistants: Individuals who assist the dentist or the dental hygienist.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.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.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)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.Dental Service, Hospital: Hospital department providing dental care.Dentists: Individuals licensed to practice DENTISTRY.Societies, Dental: Societies whose membership is limited to dentists.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)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.Dental Materials: Materials used in the production of dental bases, restorations, impressions, prostheses, etc.Specialties, Dental: Various branches of dental practice limited to specialized areas.Fees, Dental: Amounts charged to the patient as payer for dental services.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.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.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)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.Tooth: One of a set of bone-like structures in the mouth used for biting and chewing.Dentist-Patient Relations: The psychological relations between the dentist and patient.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)Tooth DiseasesDental Audit: A detailed review and evaluation of selected clinical records by qualified professional personnel for evaluating quality of dental care.Oral Health: The optimal state of the mouth and normal functioning of the organs of the mouth without evidence of disease.Dental Instruments: Hand-held tools or implements especially used by dental professionals for the performance of clinical tasks.Dental Waste: Any waste product generated by a dental office, surgery, clinic, or laboratory including amalgams, saliva, and rinse water.Dental 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.Economics, Dental: Economic aspects of the dental profession and dental care.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.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.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.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)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.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 Facilities: Use for material on dental facilities in general or for which there is no specific heading.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.Photography, Dental: Photographic techniques used in ORTHODONTICS; DENTAL ESTHETICS; and patient education.Tooth Extraction: The surgical removal of a tooth. (Dorland, 28th ed)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 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)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)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.Community Dentistry: The practice of dentistry concerned with preventive as well as diagnostic and treatment programs in a circumscribed population.Dental Polishing: Creation of a smooth and glossy surface finish on a denture or amalgam.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.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.Myosin Light Chains: The smaller subunits of MYOSINS that bind near the head groups of MYOSIN HEAVY CHAINS. The myosin light chains have a molecular weight of about 20 KDa and there are usually one essential and one regulatory pair of light chains associated with each heavy chain. Many myosin light chains that bind calcium are considered "calmodulin-like" proteins.Toothache: Pain in the adjacent areas of the teeth.Legislation, Dental: Laws and regulations pertaining to the field of dentistry, proposed for enactment or recently enacted by a legislative body.Tooth Abnormalities: Congenital absence of or defects in structures of the teeth.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 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.Libraries, DentalDiagnosis, 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.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.Dental Pulp Diseases: Endodontic diseases of the DENTAL PULP inside the tooth, which is distinguished from PERIAPICAL DISEASES of the tissue surrounding the root.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.Tooth Injuries: Traumatic or other damage to teeth including fractures (TOOTH FRACTURES) or displacements (TOOTH LUXATION).Dental Calculus: Abnormal concretion or calcified deposit that forms around the teeth or dental prostheses.Tooth, Deciduous: The teeth of the first dentition, which are shed and replaced by the permanent teeth.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)Dental Pulp CalcificationDentition: 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)Dental Restoration Failure: Inability or inadequacy of a dental restoration or prosthesis to perform as expected.Dental Plaque Index: An index which scores the degree of dental plaque accumulation.Toothbrushing: The act of cleaning teeth with a brush to remove plaque and prevent tooth decay. (From Webster, 3d ed)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.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).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.Mandible: The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.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).Periodontal Diseases: Pathological processes involving the PERIODONTIUM including the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT.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)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.Mouth DiseasesDental 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.Age Determination by Teeth: A means of identifying the age of an animal or human through tooth examination.Dental Disinfectants: Chemicals especially for use on instruments to destroy pathogenic organisms. (Boucher, Clinical Dental Terminology, 4th ed)Darkness: The absence of light.Pit and Fissure Sealants: Agents used to occlude dental enamel pits and fissures in the prevention of dental caries.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)Curriculum: A course of study offered by an educational institution.Forensic Dentistry: The application of dental knowledge to questions of law.Cariostatic Agents: Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed)Periodontics: A dental specialty concerned with the histology, physiology, and pathology of the tissues that support, attach, and surround the teeth, and of the treatment and prevention of disease affecting these tissues.Manifest Anxiety Scale: True-false questionnaire made up of items believed to indicate anxiety, in which the subject answers verbally the statement that describes him.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.Dental Deposits: Accumulations of microflora that lead to pathological plaque and calculus which cause PERIODONTAL DISEASES. It can be considered a type of BIOFILMS. It is subtly distinguished from the protective DENTAL PELLICLE.Streptococcus mutans: A polysaccharide-producing species of STREPTOCOCCUS isolated from human dental plaque.School Admission Criteria: Requirements for the selection of students for admission to academic institutions.Malocclusion: Such malposition and contact of the maxillary and mandibular teeth as to interfere with the highest efficiency during the excursive movements of the jaw that are essential for mastication. (Jablonski, Illustrated Dictionary of Dentistry, 1982)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.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)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.Dentition, Permanent: The 32 teeth of adulthood that either replace or are added to the complement of deciduous teeth. (Boucher's Clinical Dental Terminology, 4th ed)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.Oral Surgical Procedures: Surgical procedures used to treat disease, injuries, and defects of the oral and maxillofacial region.Mouth, Edentulous: Total lack of teeth through disease or extraction.State Dentistry: Control, direction and financing of the total dental care of the population by a national government.Geriatric Dentistry: The branch of dentistry concerned with the dental problems of older people.Light Signal Transduction: The conversion of absorbed light energy into molecular signals.Dental Caries Activity Tests: Diagnostic tests conducted in order to measure the increment of active DENTAL CARIES over a period of time.Surgery, Oral: A dental specialty concerned with the diagnosis and surgical treatment of disease, injuries, and defects of the human oral and maxillofacial region.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)Radiography, Panoramic: Extraoral body-section radiography depicting an entire maxilla, or both maxilla and mandible, on a single film.Dental Cementum: The bonelike rigid connective tissue covering the root of a tooth from the cementoenamel junction to the apex and lining the apex of the root canal, also assisting in tooth support by serving as attachment structures for the periodontal ligament. (Jablonski, Dictionary of Dentistry, 1992)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.Tooth Loss: The failure to retain teeth as a result of disease or injury.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.Pulpitis: Inflammation of the DENTAL PULP, usually due to bacterial infection in dental caries, tooth fracture, or other conditions causing exposure of the pulp to bacterial invasion. Chemical irritants, thermal factors, hyperemic changes, and other factors may also cause pulpitis.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)School Dentistry: Preventive dental services provided for students in primary and secondary schools.Light-Curing of Dental Adhesives: The hardening or polymerization of bonding agents (DENTAL CEMENTS) via exposure to light.Dental Prosthesis, Implant-Supported: A prosthesis that gains its support, stability, and retention from a substructure that is implanted under the soft tissues of the basal seat of the device and is in contact with bone. (From Boucher's Clinical Dental Terminology, 4th ed)Focal Infection, Dental: Secondary or systemic infections due to dissemination throughout the body of microorganisms whose primary focus of infection lies in the periodontal tissues.Training Support: Financial support for training including both student stipends and loans and training grants to institutions.Fluoridation: Practice of adding fluoride to water for the purpose of preventing tooth decay and cavities.Teaching: The educational process of instructing.Orthodontics: A dental specialty concerned with the prevention and correction of dental and oral anomalies (malocclusion).OdontoblastsDental Impression Materials: Substances used to create an impression, or negative reproduction, of the teeth and dental arches. These materials include dental plasters and cements, metallic oxide pastes, silicone base materials, or elastomeric materials.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.Oral Hygiene Index: A combination of the debris index and the dental calculus index to determine the status of oral hygiene.Dental Casting Technique: The process of producing a form or impression made of metal or plaster using a mold.Models, Educational: Theoretical models which propose methods of learning or teaching as a basis or adjunct to changes in attitude or behavior. These educational interventions are usually applied in the fields of health and patient education but are not restricted to patient care.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)Educational Technology: Systematic identification, development, organization, or utilization of educational resources and the management of these processes. It is occasionally used also in a more limited sense to describe the use of equipment-oriented techniques or audiovisual aids in educational settings. (Thesaurus of ERIC Descriptors, December 1993, p132)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 Eruption: The emergence of a tooth from within its follicle in the ALVEOLAR PROCESS of the MAXILLA or MANDIBLE into the ORAL CAVITY. (Boucher's Clinical Dental Terminology, 4th ed)Diet, Cariogenic: A diet that contributes to the development and advancement of DENTAL CARIES.Dental Pellicle: A thin protein film on the surface of DENTAL ENAMEL. It is widely believed to result from the selective adsorption of precursor proteins present in SALIVA onto tooth surfaces, and to reduce microbial adherence to the TEETH.Toothpastes: Dentifrices that are formulated into a paste form. They typically contain abrasives, HUMECTANTS; DETERGENTS; FLAVORING AGENTS; and CARIOSTATIC AGENTS.National Institute of Dental and Craniofacial Research (U.S.): Component of the NATIONAL INSTITUTES OF HEALTH. It seeks to improve oral, dental and craniofacial health through research, research training, and the dissemination of health information by conducting and supporting basic and clinical research. It was established in 1948 as the National Institute of Dental Research and re-named in 1998 as the National Institute of Dental and Craniofacial Research.Hardness: The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property.Odontometry: Measurement of tooth characteristics.Dentists, Women: Female dentists.Tooth Germ: The collective tissues from which an entire tooth is formed, including the DENTAL SAC; ENAMEL ORGAN; and DENTAL PAPILLA. (From Jablonski, Dictionary of Dentistry, 1992)Education, Predental: Preparatory education meeting the requirements for admission to dental school.Dental Restoration Repair: The process of repairing broken or worn parts of a PERMANENT DENTAL RESTORATION.Educational Measurement: The assessing of academic or educational achievement. It includes all aspects of testing and test construction.Dental Enamel Proteins: The proteins that are part of the dental enamel matrix.Fluorides, Topical: Fluorides, usually in pastes or gels, used for topical application to reduce the incidence of DENTAL CARIES.Dental Casting Investment: Material from which the casting mold is made in the fabrication of gold or cobalt-chromium castings. (Boucher's Clinical Dental Terminology, 4th ed, p168)Composite Resins: Synthetic resins, containing an inert filler, that are widely used in dentistry.Dental High-Speed Technique: Dental methods involving the use of DENTAL HIGH-SPEED EQUIPMENT.Paleodontology: The study of the teeth of early forms of life through fossil remains.Tooth Calcification: The process whereby calcium salts are deposited in the dental enamel. The process is normal in the development of bones and teeth. (Boucher's Clinical Dental Terminology, 4th ed, p43)United StatesPharmaceutical Preparations, Dental: Drugs intended for DENTISTRY.Tooth Root: The part of a tooth from the neck to the apex, embedded in the alveolar process and covered with cementum. A root may be single or divided into several branches, usually identified by their relative position, e.g., lingual root or buccal root. Single-rooted teeth include mandibular first and second premolars and the maxillary second premolar teeth. The maxillary first premolar has two roots in most cases. Maxillary molars have three roots. (Jablonski, Dictionary of Dentistry, 1992, p690)Time Factors: Elements of limited time intervals, contributing to particular results or situations.Dental Staff, Hospital: Dental personnel practicing in hospitals.Jaw, Edentulous, Partially: Absence of teeth from a portion of the mandible and/or maxilla.Saliva: The clear, viscous fluid secreted by the SALIVARY GLANDS and mucous glands of the mouth. It contains MUCINS, water, organic salts, and ptylin.Tooth Discoloration: Any change in the hue, color, or translucency of a tooth due to any cause. Restorative filling materials, drugs (both topical and systemic), pulpal necrosis, or hemorrhage may be responsible. (Jablonski, Dictionary of Dentistry, 1992, p253)Questionnaires: Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.
Evaluation of depth of cure and Knoop hardness in a dental composite photo-activated using different methods. (1/142)The aim of this study was to evaluate the depth of cure and Knoop hardness in the P60 composite resin photo-activated using different methods. A bipartite brass matrix (3 mm in diameter X 11 mm in height) was filled with the composite and photo-activation was performed using continuous light, exponential light, intermittent light, plasma arc curing (PAC) or light-emitting diodes (LED). After opening the matrix, the uncured material was removed with a steel spatula and the polymerized composite was measured using a pachymeter. The specimens were then included in self-curing acrylic resin and worn longitudinally and the hardness was measured on the surface and at depths of 1, 2, 3, 4 and 5 mm. The data were analyzed by ANOVA and Tukey's test (5%). The results showed that the depth of cure was higher with the intermittent light, followed by continuous light, exponential light, PAC and LED methods. Up to a depth of 2 mm, all methods revealed similar hardness values, but there were differences between them at other depths, at which LED demonstrated the lowest values followed by PAC. (+info)
Effect of the increase of energy density on Knoop hardness of dental composites light-cured by conventional QTH, LED and xenon plasma arc. (2/142)The aim of this study was to evaluate the effect of the increase of energy density on Knoop hardness of Z250 and Esthet-X composite resins. Cylindrical cavities (3 mm in diameter X 3 mm in depth) were prepared on the buccal surface of 144 bovine incisors. The composite resins were bulk-inserted and polymerized using different light-curing units and times: conventional QTH (quartz-tungsten-halogen; 700 mW/cm(2); 20 s, 30 s and 40 s); LED (light-emitting diode; 440 mW/cm(2); 20 s, 30 s and 40 s); PAC (xenon plasma arc; 1700 mW/cm(2); 3 s, 4.5 s and 6 s). The specimens were stored at 37 degrees C for 24 h prior to sectioning for Knoop hardness assessment. Three measurements were obtained for each depth: top surface, 1 mm and 2 mm. Data were analyzed statistically by ANOVA and Tukey's test (p<0.05). Regardless of the light source or energy density, Knoop hardness of Z250 was statistically significant higher than that of Esthet-X (p<0.05). Specimens cured with PAC had lower hardness than those cured with QTH and LED (p<0.05). Higher Knoop hardness was obtained when the energy density was increased for LED and PAC (p<0.05). No statistically significant differences (p>0.05) were found for QTH. Knoop hardness values decreased with the increase of depth. The increase of energy density produced composites with higher Knoop hardness means using LED and PAC. (+info)
Color stability of composites subjected to accelerated aging after curing using either a halogen or a light emitting diode source. (3/142)The purpose of this study was to evaluate, in vitro, the color stability of three composite resins of two different shades (A3 and C3) cured with either a quartz tungsten halogen (QTH) or a light emitting diode (LED) source. Forty specimens (20 x 2 mm) were prepared for each composite (Tetric Ceram, Heliomolar and Esthet-X), being 20 for each shade. In each group, 10 specimens were light-cured using the QTH unit and 10 with the LED source. The shade of the materials was evaluated before and after submitting the specimens to artificial accelerated aging (4 h UV-B/4 h condensing vapor), using a reflection spectrophotometer. deltaE means were calculated and analyzed statistically by 2-way ANOVA and Tukey's test at 5% significance level. Both A3 and C3 shades of Esthet-X composite resin showed the lowest color change when cured with the QTH light, while Tetric C3 cured with the QTH light showed the highest color change. (+info)
Influence of shade and irradiation time on the hardness of composite resins. (4/142)This study tested the following hypotheses: 1. increasing light irradiation time (IT) produces greater values of superficial hardness on different depths (0 and 3 mm); and 2. a dark shade composite (A3) needs longer IT than a light shade composite (A1) to produce similar hardness. Disk-shaped specimens (n=24 per shade) were fabricated using a 3-mm-thick increment of composite resin (Z100). Specimens were randomly assigned to 3 groups (n=8) according to the IT (400 mW/cm2) at the upper (U) surface: A1-10 and A3-10: 10 s; A1-20 and A3-20: 20 s; A1-40 and A3-40: 40 s. Specimens were stored in black lightproof containers at 37 masculineC for 24 h before indentation in a hardness tester. Three Vickers indentations were performed on the U and lower (L) surfaces of each specimen. The indent diagonals were measured and the hardness value calculated. The results were analyzed statistically by ANOVA and Tukey's test (alpha=0.05). Statistically significant differences were found between U and L surfaces of each composite shade-IT combination (p=0.0001) and among the ITs of same shade-surface combination (p=0.0001), except between groups A1-20U and A1-40U, confirming the study hypothesis 1 and partially rejecting the hypothesis 2. (+info)
Effect of veneering materials and curing methods on resin cement knoop hardness. (5/142)This study evaluated the Knoop hardness of Enforce resin cement activated by the either chemical/physical or physical mode, and light cured directly and through ceramic (HeraCeram) or composite resin (Artglass). Light curing were performed with either conventional halogen light (QTH; XL2500) for 40 s or xenon plasma arc (PAC; Apollo 95E) for 3 s. Bovine incisors had their buccal surfaces flattened and hybridized. On these surfaces a mold was seated and filled with cement. A 1.5-mm-thick disc of the veneering material was seated over this set for light curing. After storage (24 h/37 masculineC), specimens (n=10) were sectioned for hardness (KHN) measurements in a micro-hardness tester (50 gf load/ 15 s). Data were submitted to ANOVA and Tukey's test (alpha=0.05). It was observed that the dual cure mode yielded higher hardness compared to the physical mode alone, except for direct light curing with the QTH unit and through Artglass. Higher hardness was observed with QTH compared to PAC, except for Artglass/dual groups, in which similar hardness means were obtained. Low KHN means were obtained with PAC for both Artglass and HeraCeram. It may be concluded that the hardness of resin cements may be influenced by the presence of an indirect restorative material and the type of light-curing unit. (+info)
Effect of light-curing methods on resin cement Knoop hardness at different depths. (6/142)This study evaluated, using Knoop hardness test, the polymerization depth of Rely-X dual-cured resin cement activated by chemical reaction alone (control group) or by chemical/physical mode with light curing through a 1.5-mm-thick ceramic layer (HeraCeram). Bovine incisors had their buccal surface flattened and hybridized. On this surface, a rubber mould (5 mm diameter; 1 mm high) was bulk filled with cement. Either a polyester strip or a 1.5-mm-thick disc of the veneering material was seated over this set. Light curing was performed with either conventional halogen light (QTH; XL2500) for 40 s, light-emitting diode (LED; Ultrablue Is) for 40 s or xenon plasma arc (PAC; Apollo 95E) for 3 s. In a control group, cement setting occurred by chemical reaction alone. After storage dry in dark (24 h/37 degrees C), the specimens (n=5) were sectioned for hardness (KHN) measurements at three depths in a microhardness tester (50 gf load/15 s). Data were submitted to ANOVA and Tukey's test (alpha = 0.05). Rely-X cement presented higher Knoop hardness values when the QTH and LED LCUs were used, compared to the control group and PAC. Light curing with PAC resulted in lower hardness compared to the control group. Cement hardness was significantly lower in deeper regions. (+info)
Influence of different light curing units on the bond strength of indirect resin composite restorations. (7/142)(+info)
The effects of light intensity and light-curing time on the degree of polymerization of dental composite resins. (8/142)The aim of this study was to investigate the effects of light intensity and light-curing time on the polymerization of composite resins. Four composite resins were light-cured with different light-curing conditions. In the non-thermocycled case, specimens showed almost the same or similar microhardness values if energy density was identical or similar. As the energy density decreased, maximum polymerization shrinkage decreased. At higher energy densities, specimens had a lower coefficient of thermal expansion than at lower energy densities. At the same or similar energy density, most resin products showed coefficient values which were not statistically different. After 10,000 thermocycles, specimens showed decreases of 2.4-16.5% and 4.6-25.2% in microhardness and coefficient of thermal expansion respectively. Within the limitations of the present study, it was found that light-curing composite resins with higher energy density was beneficial to acquiring higher microhardness values and lower coefficients of thermal expansion. (+info)
Glass ionomer cement
"Influence of Thermo-Light Curing with Dental Light-Curing Units on the Microhardness of Glass-Ionomer Cements". Int J ... 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( ... Glass ionomer cement is primarily used in the prevention of dental caries. This dental material has good adhesive bond ...
... including overheating from insufficiently cooled dental drills and use of dental curing lights.[medical citation needed] More ... In addition, dental caries is more likely to develop pulpitis due to less time for the dental pulp to react and protect itself ... Seltzer and Bender's Dental Pulp. Quintessence, 2002 Eugene Chen and Paul V. Abbott, "Dental Pulp Testing: A Review," ... Pulpitis may be caused by dental caries that penetrate through the enamel and dentin to reach the pulp, or it may be a result ...
Dentistry portal Dental Curing Light Dental dam Dental treatment Fixed prosthodontics Gold teeth Treatment of knocked-out ( ... A dental restoration or dental filling is a treatment to restore the function, integrity, and morphology of missing tooth ... Dental implants are anchors placed in bone, usually made from titanium or titanium alloy. They can support dental restorations ... Removable dental prostheses (mainly dentures) are sometimes considered a form of indirect dental restoration, as they are made ...
A bracket will be applied with dental cement, and then cured with light until hardened. This process usually takes a few ... Survey: Most Effective Dental Braces Are Least Attractive Newswise, Retrieved on July 9, 2008. Media related to Dental braces ... Bands are also utilized when dental fillings or other dental work make securing a bracket to a tooth infeasible. An archwire ... Many products can increase comfort, including oral rinses, dental wax or dental silicone, and products to help heal sores. ...
Can be used with light-cure, self-cure, and dual-cure materials (without the separate activators); c)Can be used for both ... In 1979 he published a guide to aesthetic dentistry entitled "Dental Health/Dental Beauty." In 2012, new dental universal ... Dental bonding is a dental procedure in which a dentist applies a tooth-colored resin material (a durable plastic material) and ... CS1 maint: Multiple names: authors list (link) Smigel, Irwin (1979). Dental Health/Dental Beauty. M. Evans. ISBN 978-0-87131- ...
Chemical cure (self-cure / dark cure) Light cure Dual cure (setting both chemically and by light) Chemically cured resin ... Therefore, UV light-curing units were later replaced by visible light-curing systems which used Camphorquinone as a light ... light-curing resin composites were introduced in the 1970s. The first light-curing units used ultra-violet light to set the ... Curing time should be increased for darker resin shades. Light cured resins provide denser restoration than self-cured resins ...
Dental amalgam controversy
... and retinal damage from blue curing light. Anti-amalgam sources typically promote removal of amalgam fillings and substitution ... "Dental Amalgam FAQs". Canadian Dental Association. Retrieved 24 November 2014. Safety of Dental Amalgam. Policy Statement 6.18 ... It is the position of the FDI World Dental Federation as well as numerous dental associations and dental public health agencies ... This discussion of the dental amalgam controversy outlines the debate over whether dental amalgam (the silver alloy in dental ...
"A clinical trial of light cure acrylic resin for orthodontic use". Journal of Orthodontics. 29 (1): 51-55. doi:10.1093/ortho/ ... "Dental art: A French dentist showing his artificial teeth". British Dental Association. 30 June 2010. Archived from the ... which is either a heat cured or cold-cured type. During the processing period, heat cured acrylics-also called permanent ... These acrylics are available as heat cured or cold cured types. Commercially produced acrylic teeth are widely available in ...
Glass ionomer do not require light curing, however they will set faster with the usage of a curing light. Resin-based sealants ... the American Dental Association, the Australian Dental Association, the British Dental Association, and the Canadian Dental ... Second generation: chemical-curing (autopolymerized). Third generation: visible light-cured. Fourth generation: contain ... dental hygienist, an oral health therapist and dental assistants (in some states in the USA) are able to apply dental sealants ...
Light House, at Anjengo village. Anjengo Beach at Anjengo village Muthalappozhiwhere the Arabian sea and the Anjengo lake ... Ayurvedadic Hospital Apsala Ayurveda Hospital R.R Dental Hospital SSPB High School S.N.V. Govt. Higher Secondary School Tolstoy ... Varkala Nature Cure Centre, Govt of kerala, at Paapanasham Varkala Janaki Hospital Mission Hospital Govt. ...
Water and Light. SDM Eye Hospital at Mangalore is a modern scientific eye treatment centre. The SDM Dental Hospital serves ... The Nature Cure Hospital, built on the banks of the Netravathi River, uses a system based on the five elements of Air, Earth, ... Lakshadeepa, the festival of lights, is the annual festival of Dharmasthala in November-December. On an average the flow of ... and dental sciences in Dharmasthala, Ujire, Mangalore, Udupi, Dharwad, Hassan, Mysore and other places of Karnataka state. The ...
With light pressure the hernia is held securely day and night, and a radical cure is certain. It is easy, durable and cheap." ... Snowden; Weiss, John (1997). Surgical and Dental Instruments Catalogues from the Civil War Era. Norman Publishing. ISBN 978-0- ... This book also describes dozens of hernia cases which appeared to be cured by this relatively primitive truss. Such ...
... polymerization instead of high-intensity light curing incremental layering to reduce the effects of polymerization shrinkage; ... in 1987 and refers to the number of bonded surfaces to the number of un-bonded surfaces in a dental restoration. For example, ... 1987). The developing curing contraction in a bonded restoration generate stress on the bonded interface that are in ... "Resisting the curing contraction with adhesive composites", J Prosthet Dent, 55 (4): 446-44 ...
Odontologically they can be filled by light-cured composite resin when applied in two applications. While a common feature of ... Histology Course Notes: "Mature Enamel", New Jersey Dental School, 2003-2004, page 2. Chai, H.; Lee, J. J. -W.; Constantino, P ... Journal of dental research. 28 (6): 549-557, illust. PMID 15398056. Bures, H.; Svejda, J. (1976). "Enamel bundles and lamellae ... Journal of Dental Research. 88 (3): 224-228. doi:10.1177/0022034508330055. PMID 19329454. Amizuka, N.; Uchida, T.; Fukae, M.; ...
In-office bleaching procedures generally use a light-cured protective layer that is carefully painted on the gums and papilla ( ... Bleaching agents are only allowed to be given via dental practitioners, dental therapists and dental hygienists. Bleaching is ... Lights are typically within the blue light spectrum as this has been found to contain the most effective wavelengths for ... Causes of intrinsic staining include: Dental caries (tooth decay) Dental trauma which may cause staining either as a result of ...
... this material is commonly referred to as having light or heavy body depending on specific usage. Dental impression Dentures ... they cure (harden) rapidly. Polyvinyl siloxane is widely used in dentistry as an impression material. It is also used in other ... It is a viscous liquid that cures ("dries") quickly into a rubber-like solid, taking the shape of whatever surface it was lying ... Mandikos M. "Polyvinyl siloxane impression materials: An update on clinical use". Australian Dental Journal 1998;43:(6):428-434 ...
Post and core
The material used with the post to create the pattern for both the post and core is a self-cure acrylic resin The wall of the ... A post and core crown is a type of dental restoration required where there is an inadequate amount of sound tooth tissue ... is painted on the portion lying within the canal to aid its removal Gingival retraction as described above is completed A light ... After the material has been cured or has had a chance to set and properly formed into a crown preparation, an impression can be ...
Occlusal splints are typically made of a heat-cured acrylic resin. Soft acrylic or light cured composite, or vinyl splints may ... Reed RV (1994). "Origin and early history of the dental mouthpiece". British Dental Journal. 176: 479. Knapik et al., 2007, p. ... Sports portal Dentistry portal Dental trauma "Tooth surface loss; Part 3: Occlusion and splint therapy" British Dental Journal ... Dental aesthetics During tooth bleaching[medical citation needed] As a night protector of thin porcelain bridges[medical ...
Currently a resin/matrix adhesive which is command light cured is most commonly used. This is similar to composite filling ... Dental age 2 begins when stage 1 ended, ends with eruption of first permanent tooth. Dental age 3 begins when stage 2 ended and ... Dental age 4 begins when stage 3 ended and ends with eruption of any permanent canines or premolar. Dental age 5 begins when ... Dhaka Dental College in Bangladesh is one of the many schools recognized by the Bangladesh Medical and Dental Council (BM&DC) ...
... cures under ultraviolet light. Depending on brand these can show a broader variety of quality and properties (flexibility, ... These dental materials were chemicals that came under the 'family' name of acrylics: thus the acrylic artificial nail was ... There is no smell involved, no harsh chemicals, no roughing up your nail bed and no UV light. The powder is also more durable ... Fred Slack used his dental equipment and chemicals to replace his natural nail, but over time the process has significantly ...
Photic sneeze reflex
... dental, optical) and having bright lights directed towards the patient's face. Perhaps the most universal risk of sneezing is ... There is currently no definitive way to cure the sneezing fits brought on by the photic sneeze reflex. Photic sneezing can be ... A photic sneeze results from exposure to a bright light. The photic sneeze reflex seems to be caused by a change in light ... when suddenly exposed to bright light. This condition tends to occur more severely after one has emerged into the light after ...
Oxygen can be photolyzed into atomic oxygen by light with wavelength less than 240 nm. O2 → 2O Atomic oxygen can then combine ... The physical properties of the cured resins are affected by the generation of primary radicals during the initial stage of ... adhesives and dental restoratives). Some small molecules in the atmosphere can also act as photoinitiators by decomposing to ... Camphorquinone (CQ) is a photosensitiser used with an amine system, that generates primary radicals with light irradiation. ...
USS Whidbey (AG-141)
That process enabled those who had contracted malaria or any dormant infections to be cured before they returned to stateside ... providing dental care, and taking blood tests and X-rays. Her medical teams not only provided those services on board ship, but ... her operations took on a different complexion in light of the Korean War that had broken out in the summer of 1950. Whidbey, ...
The material is heated to a liquid, or mixed with a liquid that will either dry or cure (such as plaster or cement). ... Usually 5 to 7 light cuts create the correct depth of the thread. The coordination of various machine elements including ... Good examples of threaded parts produced with additive manufacturing are found in the dental implant and bone screw fields, ... white light scanners; and coordinate-measuring machines (CMMs). Even industrial radiography (including industrial CT scanning) ...
Edwin Hartley Pratt
He advocated removal of the hood of the clitoris as a cure for female masturbation, and hysterectomies as a cure for female ... Cutler, Harry Gardner (1896). "Edwin Hartley Pratt". Medical and dental colleges of the west: historical and biographical: ... "there came upon him a flood of light", and he held his audience in rapt attention. His speech was sufficiently persuasive that ... He was a particularly strong advocate of circumcision as a cure for rape, opining that if only rapists "had received the proper ...
Tteokcha (떡차; lit. "cake tea"), also called byeongcha (병차; 餠茶; lit. "cake tea"), was the most commonly produced and consumed ... Newly formed tea bricks were then left to cure, dry, and age prior to being sold or traded. Tea bricks were preferred in trade ... Cao, J.; Zhao, Y.; Liu, J. (1997). "Brick tea consumption as the cause of dental fluorosis among children from Mongol, Kazak ... "money tea"), jeoncha (전차; 錢茶; lit. "money tea"), or cheongtaejeon (청태전; 靑苔錢; lit. "green moss coin"). Borim-cha (보림차; 寶林茶) or ...
Photo-activation of the hydrophobic probe iodonaphthylazide in cells alters membrane protein function leading to cell death |...
Photo-activation of the hydrophobic membrane probe 1, 5 iodonaphthylazide (INA) by irradiation with UV light (310-380 nm) results in the covalent modification of transmembrane anchors of membrane proteins. This unique selectivity of INA towards the transmembrane anchor has been exploited to specifically label proteins inserted in membranes. Previously, we have demonstrated that photo-activation of INA in enveloped viruses resulted in the inhibition of viral membrane protein-induced membrane fusion and viral entry into cells. In this study we show that photo-activation of INA in various cell lines, including those over-expressing the multi-drug resistance transporters MRP1 or Pgp, leads to cell death. We analyzed mechanisms of cell killing by INA-UV treatment. The effects of INA-UV treatment on signaling via various cell surface receptors, on the activity of the multi-drug resistance transporter MRP1 and on membrane protein lateral mobility were also investigated. INA treatment of various cell lines
Evaluation of the Influence of Three Types of Light Curing Systems On Temperature Rise, Depth of Cure and Degree of Conversion...
Aim of study: The purpose of this study was to evaluate the effect of Quartz tungsten halogen, Light emitted diode & soft start light curing units on temperature rise..
Some of the results come as a surprise: contrary to expectations, the reaction rate is not so much limited by the concentration of the molecules in solution, but decisively by the permeability of the nanoreactors shell. "This is extremely interesting since chemists today can often fine tune or even switch the permeability of these shells to specific molecules via variations in temperature or other parameters", explains co-author Dr. Won Kyu Kim.. Photo-activation taken into account. The new model is a big step forward from the older theory done many decades earlier that could handle only one molecule. "Our model is applicable to research on energy materials, and it can even take into account photo-activation of one of the molecules at the shell by sunlight", Dzubiella states. He has achieved with this work one of the goals of his European Research Council (ERC) Consolidator Grant (2015-2020).. ...
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How to Replace a Lightbulb in an Outdoor Halogen Light Fixture. Outdoor halogen light fixtures offer a brilliant light radius which can often illuminate your entire yard. The light is so powerful, that it often only requires one well-placed light fixture to do it.. When you have a halogen light fixture outside and the bulb happens to go out, the difference is like, well, it is like night and day! A great source for home security or for simply being able to keep an eye on your dog as he does his business, halogen light fixtures are a wonderful addition to any backyard.. But, these powerful lights do not use a conventional light bulb. Halogen light bulbs are long and thin, and they do not get screwed in, which can confuse some people. So to help keep your yard illuminated, heres how to change a lightbulb in an outdoor halogen light fixture.. ...
Buy Eiko SoLux Halogen Lamp (50W, 12V, 17°, 3500K) features Tungsten Halogen Lamp, Built-In 17° Reflector & Front Glass. Review Eiko Tungsten & Halogen Lamps, Lighting Lamps & Flashtubes
OSA | Slope-based eccentric photorefraction: theoretical analysis of different light source configurations and effects of...
A geometrical-optical technique is used to predict the changes in the slope of the eccentric-photorefraction intensity profiles as a function of refractive state. We investigate how the intensity profiles vary with refractive state for different light source configurations and monochromatic aberrations in the eye. The best possible light source configuration extends from zero eccentricity (to increase sensitivity and reduce the dead zone) to a high eccentricity (to increase the working range). An advantage of using the extended light source is that the intensity profile of the eccentric-photorefraction reflex is more linear for extended sources than for point light sources. It is also shown that the change in slope with refractive state is dependent on pupil size. Furthermore, when asymmetric aberrations are present, the change in intensity profile slope with refractive state is dependent on the circumferential position of the light source, but this dependence can be resolved by averaging slope ...
The present application provides a multi-dimensional light-emitting device electrically connected to a power supply system. The multi-dimensional light-emitting device comprises a substrate, a blue light-emitting diode array and one or more phosphor layers. The blue light-emitting diode array, disposed on the substrate, comprises a plurality of blue light-emitting diode chips which are electrically connected. The multi-dimensional light-emitting device comprises a central area and a plurality of peripheral areas, which are arranged around the central area. The phosphor layer covers the central area. When the power supply system provides a high voltage, the central area and the peripheral areas of the multi-dimensional light-emitting device provide a first light and a plurality of second lights, respectively. The first light and the second lights are blended into a mixed light.
A high energy filament lamp light source, such as a quartz tungsten halogen lamp, operated in a pulsed mode with a high voltage input, creates a particular energy output. Applications of such apparatus and methods include treatment of the dermis and/or sub-epidermal tissues for the purpose of skin recontouring, thermal destruction of hair follicles for the purpose of hair removal, and others, and a method which selectively preheats a subsurface region in targeted tissue to sub-thermal modification threshold values without significant heat damage to surrounding layers prior to further treatment.
Electrophoretic Deposition: Fundamentals and Applications III: Monitoring Constrained Sintering of YSZ Coatings Using Fluorescence Spectroscopy and Micro-Hardness
Brevet US20070131949 - Color tunable light-emitting devices and method of making the same - Google Brevets
A color tunable light-emitting device is provided which comprises a first light-emitting element, a second light-emitting element, an active light transformative element disposed between the first light-emitting element and the second light-emitting element; and at least one light transmissive element, wherein the first and second light-emitting elements emit light at different wavelengths. Active light transformative elements which may be employed are illustrated by electrochromic elements, photochromic elements, and thermochromic elements.
Role of the electron blocking layer in the current transport of efficient III-N light-emitting diodes | (2010) | Heikkilä | ...
Electron blocking layers (EBLs) are commonly used to reduce the leakage current in modern multi-quantum well (MQW) InGaN light-emitting diodes (LEDs). We study the effect of the EBL and doping on the operation and efficiency of LEDs. We simulate both conventional MQW LEDs with AlGaN EBL, LEDs with quaternary AlInGaN EBL and LEDs without EBL. We show that the elimination of the polarization charges at the EBL interface greatly enhances the injection efficiency and that the hole injection in MQW lattice can be optimized by doping. The efficiency droop limiting the high power operation is also analyzed to determine the underlying mechanisms in the simulated MQW structures. Based on these results, we discuss the measures to increase the overall efficiency MQW structures ...
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Patent WO2008053046A1 - Luminous device comprising at least one light-emitting diode - Google Patents
The luminous device, which is provided in particular for use in the medical sector, has a luminous unit (1) which comprises at least one light-emitting diode (11) and which is connected or can be connected to a power supply device (3) via electrical lines (21, 22). According to the invention, a connecting element (2) is provided, which has a strip-type, flexible and insulating base substrate (21) coated with metal on one side or on both sides, into which are incorporated the electrical lines (22; 23), which are led to connections (25) of the luminous unit (1) at one end of the connecting element (2) and to connections (26) of the power supply device (3) at the other end of the connecting element (2), wherein the metal layers (22, 23, 24) provided on one or both sides of the base substrate (21) are dimensioned in such a way that they hold the base substrate (21) in a chosen form.
The modular design of the WITec microscope serried allows the attachment of a time correlated single photon counting module to the alpha300 or alpha500 confocal microscope series. This makes possible several types of spatial and time-resolved measurements such as fluorescence lifetime imaging or electro- and photo-luminescence decay imaging. This application note covers spatially resolved µElectroluminescence (EL) studies of a blue, light-emitting diode (LED).
Applying the selective Cu electroplating technique to light-emitting diodes, Research on Chemical Intermediates | 10.1007...
Read "Applying the selective Cu electroplating technique to light-emitting diodes, Research on Chemical Intermediates" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
FIG. 1 is a front, right side perspective view of an adjustable halogen lamp showing my new design;. FIG. 2 is a top, rear, right side perspective view thereof with the lamp in an alternate position;. FIG. 3 is a left side elevational view thereof;. FIG. 4 is a front elevational view thereof;. FIG. 5 is a rear elevational view thereof;. FIG. 6 is a top plan view thereof; and,. FIG. 7 is a bottom plan view thereof.. ...
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A flexible piston rod includes a piston and a row of elements, each having top, bottom, and lateral surfaces, the top surface of one element being connected to the bottom surface of an adjacent element by a hinge that allows the two adjacent elements to pivot from a first position, where a portion of the top surface of one element abuts a corresponding portion of the bottom surface of the adjacent element and corresponding to a rectilinear, relatively stiff configuration of the piston rod, to a second position wherein the top surface of one element is spaced from the bottom surface of the adjacent element and corresponding to a curved configuration of the piston rod. The lateral surface of each element has first and second mutually-opposed cylindrical surface portions incorporating a thread for meshing with a corresponding thread of an actuator for displacing the piston rod longitudinally.
Considering the fact that during phototropism a lateral auxin gradient with its maximum on the shaded side is formed, the question arises how it is possible that such a gradient is established. Here, it is of special interest why the maximum of the gradient is located on the shaded side since the original blue light stimulus is applied to the opposite side and photo-activation seems to be positively fluence correlated. Still, one can argue that the light absorption of a tissue like a dark grown hypocotyl (with a diameter of about 250μm) hardly absorbs any light but then one would need to question why a gradient is formed at all. In the course of this project, it is planned to investigate this gradient formation relying on both, experimental techniques as well as computational modeling, collaborating with the groups of Richard Smith and Christian Fankhauser as part of the Plant Growth project from SystemsX.ch. ...
The cell imaging centre BICEL-IFR114, IBISA certified, offers different activities as trainings, support, monitoring and consulting to a wide scientific community present within the site but also to national and international entities academic organizations or private companies. Studies using imaging equipment such as confocal microscope, conventional microscope or times series microscope are designed to localize, by immunofluorescence techniques, fusion proteins or histological stainings, molecules of interest in tissues and cells, fixed or alive. These systems also allow the visualization and quantification of many dynamic processes in biology such as cell survival, cell migration, changes in membrane potential or intracellular calcium concentration. Experiments of FRET, FRAP or photo-manipulation (photo-activation, photo-conversion) are also achievable through advanced microscopy techniques dynamics. The platform also offers studies in molecular biology with the technique of laser ...
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Light-emitting diodes (LEDs) come in many varieties and with a wide range of radiation patterns. We propose a general, simple but accurate analytic representation for the radiation pattern of the light emitted from an LED. To accurately render both the angular intensity distribution and the irradiance spatial pattern, a simple phenomenological model takes into account the emitting surfaces (chip, chip array, or phosphor surface), and the light redirected by both the reflecting cup and the encapsulating lens. Mathematically, the pattern is described as the sum of a maximum of two or three Gaussian or cosine-power functions. The resulting equation is widely applicable for any kind of LED of practical interest. We accurately model a wide variety of radiation patterns from several world-class manufacturers.. ©2008 Optical Society of America. Full Article , PDF Article ...
I have worklights and with some diffusion and reflection they work great to light scenes but Im using standard bulbs and I could really use pure
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The A1U10 group showed significantly lower mean hardness than the other two groups (A1U20 and A1U40) for the U surface of this composite resin shade (A1) (£0.05). At the L surface of A1 shade a significantly higher mean hardness was found at 40 s irradiation time (A1L40) than for the A1L10 and A1L20 groups, which means that values were also statistically different (p£0.05). Both surfaces (U and L) of A3 shade composite revealed significantly greater mean hardness values at 40 s curing time, followed by the 20-s and the 10-s curing time groups (p£0.05). Statistically significant differences were found between U and L surfaces of each composite shade-IT combination (p=0.0001) and among the irradiation times of same shade-surface combination (p=0.0001), except between A1U20 and A1U40 groups. DISCUSSION. The polymerization of light-cured composite resins starts and is sustained when the rate of delivery photons from the source of light is sufficient to maintain the photo-absorbing compound, ...
We evaluated the effect of different light combinations on powdery mildew resistance and growth of melon seedlings. Light-emitting diodes were used as the light source and there were five light combinations: white light (420-680 nm); blue light (460 nm); red light (635 nm); RB31 (ratio of red and blue light, 3: 1); and RB71 (ratio of red and blue light, 7: 1). Compared with other treatments, blue light significantly decreased the incidence of powdery mildew in leaves of melon seedlings. Under blue light, H2O2 showed higher accumulation, and the content of phenolics, flavonoid and tannins, as well as expression of the genes involved in synthesis of these substances, significantly increased compared with other treatments before and after infection ...
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Light-reflective anisotropic conductive paste and light-emitting device - Patent # 8710662 - PatentGenius
A light-reflective anisotropic conductive paste is used as an anisotropic conductive paste when a light-emitting device is produced by flip-chip mounting a light-emitting element such as a light-emitting diode element (LED) on a wiring board. The light-reflective anisotropic conductive paste includes light-reflective insulating particles, in order to improve light emission efficiency without providing, in the LED, a light-reflecting layer that causes an increase in manufacturing cost. With the light-reflective anisotropic conductive paste, a reduction in bonding strength of the light-emitting element to the wiring board in a high-temperature environment can be suppressed, and a reduction in conduction reliability after a TCT can also be suppressed. In the light-reflective anisotropic conductive paste, conductive particles and the light-reflective insulating particles are dispersed in a thermosetting resin composition. The thermosetting resin
I have seen some of these lights (for illuminating driveways etc) and am ,wondering "why not?" I can buy one of these units for 9 (~$15), whereas to ,equip my tank with flourescents, ballasts etc would cost me well over 100 ,($150). Is there an "absolutely not" type reason? You can use these (known as low voltage dichroics), but the standard ones have a colour temperature that is generally considered to low for good plant growth, around 3000K-2500K. There is a new low voltage dichroic on the market that has a colour temperature of 4700K, CRI 87 that is a daylight lamp that does look very good on a planted tank. I hve seen them available for between AU$13-AU$20. Marque APD - ANGFA(NSW) - Sydney ...
Vacuum-evaporated all-inorganic cesium lead bromine perovskites for high-performance light-emitting diodes - Journal of...
All-inorganic perovskite materials, i.e. cesium lead halide (CsPbX3 (X = I, Br, Cl)), have attracted much attention in the application of photoelectronic devices, especially in solar cells and light-emitting diodes (LEDs). However, the solubility issue of CsPbX3 restricts their utilization in solution-proces
Synthesis of highly fluorescent InP/ZnS small-core/thick-shell tetrahedral-shaped quantum dots for blue light-emitting diodes -...
Blue light-emitting diodes (LEDs) offer new opportunities in practical solid-state lighting and could play a significant role in reducing global energy consumption. Here, for the first time, we report the synthesis of highly fluorescent InP/ZnS small-core/thick-shell tetrahedral shaped QDs for blue LED appli
Magnetoelectroluminescence in tris (8-hydroxyquinolato) aluminum-based organic light-emitting diodes doped with fluorescent dyes
The influences of fluorescent dye doping on the magnetoelectroluminescence in tris (8-hydroxyquinolato) aluminum (Alq3)-based organic light-emitting diodes have been investigated systematically by varying the dopant concentrations and its energy band gap. Our results show that the decrease in electroluminescence intensity at high magnetic field, which survives only at low temperatures for pure Alq3-based devices, persists in dye-doped devices even at room temperature. This is explained here as the result of magnetic field dependent triplet-triplet annihilation process, in which the triplet excitons trapped on the dye molecules play the most important role ...
Page contains details about triplet-harvesting organic light-emitting diode . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
Page contains details about organic light-emitting diode . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
fulltext9 - Frequency Domain Fluorometry with Pulsed Light-Emitting Diodes P ETR H ERMAN AND J AROSLAV V ECER Faculty of...
View Notes - fulltext9 from SPECTOGRAP 545 at AIB College of Business. Frequency Domain Fluorometry with Pulsed Light-Emitting Diodes P ETR H ERMAN AND J AROSLAV V ECER Faculty of Mathematics and
The Report Global Light-Emitting Diode Lighting Module Market 2017-2021 provides information on pricing, market analysis, shares, forecast, and company...
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DPSS DMP LH series is a compact, diode-pumped solid-state (DPSS) laser providing high-power, continuous-wave (CW) power at 532nm in a near- perfect TEMoo mode with extremely low optical noise and excellent long-term stability. DPSS DMP LH series is truly a next-generation laser designed and manufactured using many years of experience to provide a sealed, turn-key source of collimated green light with high spectral purity.. A number of key technologies guarantee this performance. Sealed technology keeps all dirt, dust and moisture out of the laser head to provide years of uninterrupted usage without need for cleaning or maintenance. All cavity optics is permanently locked in perfect alignment.. The laser head is a monolithic 3-dimensional design for ruggedness and compactness to minimize the space consumed in your lab or instrument. The fiber-coupled pump diode package, contained in the power supply, has an expected lifetime of more than 20,000 hours to minimize cost-of-ownership. The power ...
Acco Apollo Apollo® MP2800Q Four Function Executive Laser Pointer, Pen, PDA Stylus, Pointer, & Halogen Light - APOMP2800 -...
Apollo Apollo® MP2800Q Four Function Executive Laser Pointer, Pen, PDA Stylus, Pointer, & Halogen Light (APOMP2800)... more laser pointers available at ReStockIt.com
Double Beam UV Visible Spectrophotometer LUVSD-201B • Wavelength range 190-1100nm • Spectral Bandwidth 0.5, 1.0, 2.0, 4.0nm • Optical System Monochromator with 1200 lines/mm blazed holographic grating • Detector Silicon Photodiode • Stray Light Stray light is achieved at ≤0.05%T at 220nm and 360nm • Light source Deuterium and tungsten halogen lamp • Sample size A wide range of standard cuvettes to be use based on the sensitivity or sample volume requirements. • Sophisticated and simplified sample analysis software The sample analysis software provides the scanning, fixed wavelength analysis, quantitative analysis, data collection, storage, export, and reporting. With additional feature of an easy access USB port available in the unit that enables results to be stored directly to a USB memory stick for
Double Beam UV Visible Spectrophotometer LUVSD-202 • Wavelength range 190-1100nm • Spectral Bandwidth 0.5, 1.0, 2.0, 4.0nm • Optical System Monochromator with 1200 lines/mm blazed holographic grating • Detector Silicon Photodiode • Stray Light Stray light is achieved at ≤0.05%T at 220nm and 360nm • Light source Deuterium and tungsten halogen lamp • Sample size A wide range of standard cuvettes to be use based on the sensitivity or sample volume requirements. • Sophisticated and simplified sample analysis software The sample analysis software provides the scanning, fixed wavelength analysis, quantitative analysis, data collection, storage, export, and reporting. With additional feature of an easy access USB port available in the unit that enables results to be stored directly to a USB memory stick for
Abstract: Proponents for sustainable alternative lighting and display options advocate for organic light-emitting diodes (OLEDs), particularly polymer-based organic light-emitting diodes (P-OLEDs), because of their potential for low-cost fabrication, more versatile device formats and lower power consumption compared to traditional options. Here, an economic, energy and CO2 emissions assessment is carried out for four different laboratory-scale, blue-emitting P-OLED device architectures: bottom-emitting conventional; bottom-emitting inverted; top-emitting conventional; and top-emitting inverted. Additionally, comparisons with a standard, commercial-scale, blue inorganic light-emitting diode (LED) device architecture are made. The various P-OLED device architectures are investigated due to their potential to increase operational lifetime (inverted) and light out-coupling efficiency (top-emitting). The following metrics are used in this assessment: device cost per area; yearly operating cost; ...
Polymer LED (light-emitting diode) - sometimes called light-emitting polymer or polyLED - is a technology based on the use of polymer as the semiconductor material in LEDs.
Patente US8118375 - Height adjustable desk configured for stacking with legs detached - Google Patentes
A desk comprising: a writing board, the writing board defining a top surface and a substantially opposed bottom surface; at least three sleeves, each of the at least three sleeves extending substantially away from the bottom surface, each of the at least three sleeves defining a respective free end substantially opposed to the bottom surface; at least three legs, each of the at least three legs being removably insertable into and securable to a respective one of the at least three sleeves; a first one of the at least three sleeves defining a ridge extending substantially longitudinally therefrom at the free end of the first one of the at least three sleeves and a second one of the at least three sleeves defining a recess extending substantially longitudinally thereinto at the free end of the second one of the at least three sleeves, the recess being configured and sized for substantially snugly receiving the ridge. Two of the desks are stackable on top of each other with legs detached therefrom by
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A method of designing a skeletal implant comprises measuring physical characteristics of the bone to be implanted, generating a macro-design of the implant based on the physical characteristics, and determining a micro-design for the implant to ensure that strain in the bone is kept between 100 and 3000 microstrain to promote bone growth and to minimize bone resorption during functional loading. In an alternate embodiment, a dental implant comprises a crest portion having a circular bottom surface, an opposite circular top surface, and a side wall intermediate the bottom surface and the top surface, the top surface being adapted for attaching the dental prosthesis thereto. A circular base portion has a crestal end, an opposite apical end, and a core section intermediate the crestal end and the apical end having an outer surface. A helical thread extends about a portion of the outer surface of the core section that secures the device within existing bone. The bone contacting surface area of the
Abstract from Ellen Bruzells lecture at symposium MED-10 Dentistry. (Organized by Ellen Bruzell). ESP-IUPB World Congress, Light & Life, Barcelona, Spain. August 25-30. 2019.. Dental personnel encounter a number of optical sources emitting a broad spectrum of wavelengths. Along with the usefulness, to various extents, of optical radiation in treatment and diagnostics, comes the risk of radiation exposure to the operators eyes and the patients oral tissues. The presentation will cover the "involuntary" and "voluntary" use of different light sources. The curing light used for photopolymerisation of dental materials is an everyday procedure in the clinic. Curing lights have evolved from emitting moderate intensities of UV to high intensity blue light LEDs of several watts per centimeter squared. Dental bleaching procedures combined with light is a controversial topic. It is debated whether the light improves the efficiency. Thereby, the justification of the use is questionable. The bleaching ...
As the first global professional hardness conversion software, "Hardness Converter" includes 28 hardness units, 34 hardness conversion tables, and more than 20 application materials. It provides a converting function of Brinell hardness(HB), Vicker hardness(HV), Rockwell hardness(HRC etc), Knoops hardness(HK), Shore hardness(HS), Leeb hardness(HL), Webster hardness(HBa), strength of extension(Rm), and a contrasting and refering function of indentation and hardness value of Brinell, Vicker, Knoops, pin Brinell, and hammer impact Brinell ...
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What I can tell you for certain, is that despite the prevalence of its photoshopped comments on the internet, one is not always able to tell by looking whether an image has been altered from its original state. Images can contain elements lit by a variety of light sources. This alone is often a cause for misinterpretation. One of the most common misinterpretations is caused by camera flashes. Flashes cast unusual shadows and highlights, depending on distance, surface, etc. Objects in the foreground lit by a flash might appear out of place from backgrounds because theyre lit with a different light source. Flashes often cast shadows that cause objects to appear outlined ...
What I can tell you for certain, is that despite the prevalence of its photoshopped comments on the internet, one is not always able to tell by looking whether an image has been altered from its original state. Images can contain elements lit by a variety of light sources. This alone is often a cause for misinterpretation. One of the most common misinterpretations is caused by camera flashes. Flashes cast unusual shadows and highlights, depending on distance, surface, etc. Objects in the foreground lit by a flash might appear out of place from backgrounds because theyre lit with a different light source. Flashes often cast shadows that cause objects to appear outlined ...
I have a gunite indoor pool which was built 1997. I have two old underwater halogen lights which keep leaking and attempting to replace the o-ring while replacing the halogen lamp bulb is no longer working. I had a pool contractor come out and look at replacing these but the general approach is to pull out the power supply cord and the fish through a new unit. The problem is that the way these were installed resulted in a very long power supply cord (~30 ft) so this contractor was not sure the approach would work. Does anyone have a suggestion of how to either repair or replace these under these conditions ...
how far apart do you place halogen recessed lights in the kitchen? My kitchen is 12 by 14 feet. On the one side it is 9 feet with double wall ovens, 12 inch counter top, cook top then counter space.The 12 foot section across the end has counters then a double sink then counter tops. The other side has counter tops along the wall to the refrig. Taking up the other 5 feet along each wall is a 32 inch door, then ceiling to floor cabinets across the back wall. There are 6 cabinets each 24 inches wide. The end of the kitchen is a u shape.
A surgical retractor assembly is disclosed that includes a bone plate and a retractor. The bone plate has a tapered end portion. The retractor includes a base having (i) a body defining a bottom surface and a distal portion, the distal portion defining a distal surface, (iii) a first pair of tabs extending from the body that are spaced apart from each other, and (iv) a second pair of tabs extending from the body that are spaced apart from each other. The retractor further includes a handle attached to the base. The first pair of tabs and the bottom surface define a first plate space. The second pair of tabs and the distal surface define a second plate space.
Millions of halogen bulbs are sold in Britain every year, often for use in kitchen and bathroom spotlights. Any ban could consequently cause enormous inconvenience.
The main difference between how light-emitting diode, or LED, and plasma televisions work is their viewing panels. LED televisions are lit by two lead semiconductor light sources, or light-emitting...
The California Energy Commission approved new requirements for general purpose light-emitting diodes - the LEDs used in household lamps, chandeliers, and directional lamps that have a diameter of 2.25 inches or less
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Class Definition for Class 503 - RECORD RECEIVER HAVING PLURAL INTERACTIVE LEAVES OR A COLORLESS COLOR FORMER, METHOD OF USE,...
SECTION I - CLASS DEFINITION. Material which is used to form a visible record by a reactive or interactive, usually chemical or physico-chemical, phenomenon or a method of using such a material to form a record. The formation phenomenon is one of the following: (a) The chemical decomposition of a colorless substance to form a substance having color; (b) the chemical combination of two or more colorless chemical moieties to produce a substance having color; (c) The further chemical change of (a) or (b) above, to form a color different from an original color; and (d) The chemical or physico-chemical complementarity between the bottom surface of one sheet of a record receiver and the top surface of an adjacent sheet with which the first sheet id associated.. Generally, the phenomenon in cases (a) through (d) is thought about by the application to the record receiver of heat and/or pressure in the areas to be "marked".. SECTION II - REFERENCES TO OTHER CLASSES. SEE OR SEARCH CLASS:. ...
Zephyr CPAE42ASX Wall Mount Chimney Hood with Internal/External Blower Options, 9 Sones, 3 Speed Levels and Dual-Level Halogen...
Zephyr CPAE42ASX Wall Mount Chimney Hood with Internal/External Blower Options, 9 Sones, 3 Speed Levels and Dual-Level Halogen Lights (Blowers and Canopy Sold Separately): 42 in. Width
Visualize halogen bond contacts in the protein binding site. Analyze a protein binding site for halogen bonding hotspots. Evaluate halogen contacts with the protein backbone using the scoring function XBScore. This is a Tool Publishing server. ...
A wonderful look in antique gold, this decorative mirrored tray is ideal for display alone or to hold bath or dressing items. Antique gold finish. Mirrored bottom surface. Style # 9P427 at Lamps Plus.
Part No. 486669-K. Specially formulated reagent works in conjunction with current eXact Strip Micro Total Hardness High (486656). This kit allows for detection of Total Hardness 2900 - 6600 ppm (as CaCO3) without the need for a dilution kit. Bulk bottle of 50 eXact® Micro Strip Total Hardness UH #486669-A and two (2) bottles of 25 tests eXact® Micro Reagent Total Hardness UH #486669-B.. Range 1: 2900-5500 ...
A new American Medical Association report suggests blue light-emitting LED light are more distracting than helpful to humans and animals at night, joining efforts to push for a different approach.
IGCSE Chemistry: 2.14 describe experiments to demonstrate that a more reactive halogen will displace a less reactive halogen...
This blog was originally set up for my own revision purposes, and not for other people to read, so you cant rely on everything that I have written. Obviously the notes are combinations of what my teachers have taught me, what my tutor has said and things I have found in revision guides or sites, so Id like to think that everything is reliable! This is just my disclaimer and a little note to make sure that it is understood I may have made mistakes that I wouldnt want anyone to repeat! ...
9007 replacement bulbs available in standard wattage 65/55w, or with higher wattage high beam of 100/55w. Both are 12v Clear Halogen Bulb. Made in Korea. Price is per PAIR of bulbs. Bulbs carry a 6 month warranty. Industry number HB5 ...
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Organic light-emitting diodes with an electro-deposited copper(I) thiocyanate (CuSCN) hole-injection layer based on aqueous...
TY - JOUR. T1 - Organic light-emitting diodes with an electro-deposited copper(I) thiocyanate (CuSCN) hole-injection layer based on aqueous electrolyte. AU - Tsai, Chi Ting. AU - Gottam, Sandeep Reddy. AU - Kao, Po Ching. AU - Perng, Dung Ching. AU - Chu, Sheng Yuan. PY - 2019/10. Y1 - 2019/10. N2 - Copper(I) thiocyanate (CuSCN) has been drawing much attention in optoelectronics due to its exceptional optical and electrical properties, as well as its processing versatility. The first organic light-emitting diodes (OLEDs) integrated with electro-deposited CuSCN crystalline thin films based on aqueous electrolyte were fabricated. With precisely tuned deposition parameters, the CuSCN thin films with satisfactory surface roughness and sufficient grain density were realized. We found that the driving voltage (voltage at a current density of 100 mA/cm2) and turn-on voltage of OLEDs using CuSCN as the hole injection layer (HIL) can be reduced by 1.41 and 1.79 V, respectively, compared with devices ...
Effectiveness of high irradiance for short-time exposures on polymerization of composite under metal brackets<...
TY - JOUR. T1 - Effectiveness of high irradiance for short-time exposures on polymerization of composite under metal brackets. AU - Faria-E-Silva, André L.. AU - Covell, David. AU - Ferracane, Jack. AU - Pfeifer, Carmem. PY - 2017/11/1. Y1 - 2017/11/1. N2 - Objective: To evaluate the effect of different curing modes available in a dental light-curing unit on degree of conversion (DC) of a composite photoactivated under a metal orthodontic bracket. Materials and Methods: The average irradiance and total energy delivered by three curing modes (standard, high, and extra power) of a multiwave LED unit (Valo Cordless, Ultradent Products, South Jordan, Utah) were measured using the longest time available for each mode (20, 4, and 3 seconds, respectively). Brackets (n =3/group) were bonded to molar epoxy resin replicas using each curing mode. Mesiodistal sections, 0.5 mm thick, were assessed using an infrared spectrometer microscope. Spectra of composite beneath the brackets were sequentially ...
12. A light-emitting device, comprising: a light-emitting module in which a light-emitting section is provided on a substrate; and a holder for attaching the light-emitting module to a heat sink, there being at least one groove section in a portion of a front surface of the holder, a connection section that electrically connects the light-emitting module to outside being provided within the groove section, the connection section being provided with: a connector that is connected to the outside; and a screw that fixes the connector to the holder, and also electrically connects the connector to a power-supply electrode section in the light-emitting module, a conductive contact section being further provided, electrically connected to the power-supply electrode section due to being provided in a position that opposes the groove section in a rear surface of the holder and being superimposed on the power-supply electrode section in a vertically opposing manner, and also electrically connected to the ...
OPTICAL ELEMENT, OPTICAL SYSTEM, IMAGING APPARATUS, OPTICAL INSTRUMENT, AND STAMPER - Patent application
0094] As described above, in the case where the track direction a of the structure bodies 3 and the extending direction (X axis direction) of the long sides of the imaging region A1 have a parallel relationship, as shown in FIG. 6B, it is preferable that (a) the structure body 3 be formed as a cone of which the bottom surface has an elliptical shape including a long axis and a short axis, and (b) the direction of the long axis of the bottom surface of the structure body 3 correspond with the track direction a. (a) The structure body 3 is formed as a cone of which the bottom surface has an elliptical shape including a long axis and a short axis, and thereby the track pitch Tp can be reduced as compared with a case where the bottom surface of the structure body 3 is formed to be circular. Thereby, the light beam L0 from a light source such as a light spot can be scattered so as to be further distant from the optical axis 1 as compared with a case where the bottom surface of the structure body 3 is ...
ROBERTO, Andiara Ribeiro et al. Evaluation of tooth color after bleaching with and without light-activation . Rev. odonto ciênc. (Online) [online]. 2011, vol.26, n.3, pp.247-252. ISSN 1980-6523. http://dx.doi.org/10.1590/S1980-65232011000300010.. PURPOSE: The use of different light sources as an adjunct to in-office bleaching has been questioned. Thus, the aim of this study was to evaluate the color changes of teeth after application of bleaching techniques with different products, with and without activation by a LED-laser system. METHODS: Twenty-four bovine teeth surfaces were submitted to three bleaching techniques with two commercially available 35% hydrogen peroxide bleaching agents (n=8). The specimens were immersed in red wine for 48 h at 37°C and submitted to the bleaching techniques. Color changes were measured before and after staining as well as immediately after and 24 h after the bleaching treatments, with two different methods of color evaluation, software ScanWhite V1.1 and ...
Researchers have used zinc oxide microwires to significantly improve the efficiency at which gallium nitride light-emitting diodes (LED) convert electricity to ultraviolet light. The devices are believed to be the first LEDs ...
北京大学医学部机构知识库([email protected]): Photomodulating RNA cleavage using photolabile circular antisense oligodeoxynucleotides
Caged antisense oligodeoxynucleotides (asODNs) are synthesized by linking two ends of linear oligodeoxynucleotides using a photocleavable linker. Two of them (H30 and H40) have hairpin-like structures which show a large difference in thermal stability (delta T(m) = 17.5 degrees C and 11.6 degrees C) comparing to uncaged ones. The other three (C20, C30 and C40) without stable secondary structures have the middle 20 deoxynucleotides complementary to 40-mer RNA. All caged asODNs have restricted opening which provides control over RNA/asODN interaction. RNase H assay results showed that 40-mer RNA digestion could be photo-modulated 2- to 3-fold upon light-activation with H30, H40, C30 and C40, while with C20, RNA digestion was almost not detectable; however, photo-activation triggered > 20-fold increase of RNA digestion. And gel shift assays showed that it needed > 0.04 mu M H40 and 0.5 mu M H30 to completely bind 0.02 mu M 40-mer RNA, and for C40 and C30, it needed > 0.2 mu M and 0.5 mu M for 0.02 ...
Frontiers | In vivo Labeling of Constellations of Functionally Identified Neurons for Targeted in vitro Recordings | Frontiers...
Relating the functional properties of neurons in an intact organism with their cellular and synaptic characteristics is necessary for a mechanistic understanding of brain function. However, while the functional properties of cortical neurons (e.g. tuning to sensory stimuli) are necessarily determined in vivo, detailed cellular and synaptic analysis relies on in vitro techniques. Here we describe an approach that combines in vivo calcium imaging (for functional characterization) with photo-activation of fluorescent proteins (for neuron labeling), thereby allowing targeted in vitro recording of multiple neurons with known functional properties. We expressed photo-activatable GFP rendered non-diffusible through fusion with a histone protein (H2B-PAGFP) in the mouse visual cortex to rapidly photo-label constellations of neurons in vivo at cellular and subcellular resolution using two-photon excitation. This photo-labeling method was compatible with two-photon calcium imaging of neuronal responses to visual
Knoop hardness: A measure of the hardness of a material, calculated by measuring the indentation produced by a diamond tip that is pressed onto the surface of a sample. The test was devised in...
The optimal Mg co-doping selectively enhanced a specific emission site and contributed to a photoluminescence (PL) intensity increase of more than one order of magnitude. From the ratio of PL integrated intensity at 25 K to that at 300 K, the PL efficiency was determined to be as high as 77%. On the basis of these results, Eu doped GaN based LEDs were fabricated. Clear rectification characteristics with a turn-on voltage of 3.2 V were observed and a pure red emission was observed by the naked eye at room temperature. These results suggest that Eu and Mg doped GaN is expected to be utilized for realizing new nitride-based light-emitting devices ...
AID 214536 - Tested for the effect on polymerization of the tubulin present by microtubule assembly assay - PubChem
BioAssay record AID 214536 submitted by ChEMBL: Tested for the effect on polymerization of the tubulin present by microtubule assembly assay.
US20010046702A1 - Devices for performing array hybridization assays and methods of using the same - Google Patents
Array hybridization devices and methods for their use are provided. The subject devices are characterized by having a substantially planar bottom surface, a cover, at least one fluid port and at least one adjustable spacing element for adjusting the spacing between an array and the bottom surface. In using the subject devices, an array is placed on the at least one adjustable spacing element in the chamber and the space between the array and the bottom surface is adjusted by moving the at least one adjustable spacing element. The adjusted array is contacted with at least one biological sample introduced into the chamber. The subject inventions find use in a variety of array-based applications, including nucleic acid array hybridizations.
With a wide range of wavelengths, short pulse durations, high average powers and high pulse energies, compact and cost-effective diode-pumped solid-st
A light-emitting device comprising a pair of electrodes, and organic compound layers comprising a light-emitting layer provided in between the electrodes, wherein at least one of the organic compound layers comprises a compound having a transition metal atom-phosphorus atom bond.
The CX36 spotlight is a clean understated fixture design that will harmoniously blend into all architectural areas. The CX36 features a patented snap-in socket which will accommodate all the energy-efficient Tungsten Halogen PAR36/AR111 lamps from 35 to 75 watts in a wide variety of beam spreads. Patent # 6,875,035 B1 Constructed of sturdy aluminum, the CX36 features self and Allen key wrench locking stem for horizontal and vertical focusing and are available in standard LSI finishes in Black, White, and Silver.
p-ZnO/n-GaN heterostructure ZnO light-emitting diodes. Dae-Kue Hwang; Soon-Hyung Kang; Jae-Hong Lim; Eun-Jeong Yang; Jin-Yong Oh; Jin-Ho Yang; Seong-Ju Park // Applied Physics Letters;5/30/2005, Vol. 86 Issue 22, p222101 We report on the characteristics of a ZnO light-emitting diode (LED) comprised of a heterostructure of p-ZnO/n-GaN. The LED structure consisted of a phosphorus doped p-ZnO film with a hole concentration of 6.68Ã-1017 cm-3 and a Si-doped n-GaN film with an electron concentration of... ...
Patente US9486819 - System having foam busting nozzle and sub-surface mixing nozzle - Google Patentes
A surface foam diffuser system having a first nozzle disposed above a top surface of the at least partially liquid contents, a splash plate positioned adjacent to the first nozzle outlet, and a second nozzle disposed below the top surface of the at least partially liquid contents is disclosed for suppressing foaming in large processing tanks. The system nozzles each have an inlet for receiving pressurized liquid and an outlet for ejecting a liquid stream into the tank, the depth of the second nozzle and the direction of the liquid stream there from being such that rotation of the top surface is facilitated. The spray of the first nozzle, as dispersed by the splash plate, reduces foam on at least a portion of the top surface, with the rotation of the top surface allowing each portion of the top surface to eventually fall within the reducing spray.
Programmable wireless light-emitting diode stimulator for chronic stimulation of optogenetic molecules in freely moving mice
|i|Neurophotonics|/i| covers advances in optical technology applicable to study of the brain and their impact on the basic and clinical neuroscience applications.
Dave - Thats to do with the way your brain is attempting to interpret the colour information. Your brain attempts to take into account that different light sources actually look very different. If you have ever seen a photo taken inside with a camera which is an attempt to compensate for this - inside with normal incandescent bulbs, it looks incredibly yellow and your brain immediately tries to compensate for that. What youre actually seeing is the whole thing is actually looking different types of orange, different points of orange because theres only one colour.
Infrared spectrophotometry (IR) uses similar instrumentation to UV-vis spectrophotometry but it uses a different light source (infrared frequencies of ~1011 to 1014 Hz). The instrumentation consists of an infrared beam that is split into two identical beams (reference beam and analytical beam).. The analytical beam passes through the sample so that molecular vibrational absorption can occur. The intensity of the two beams are compared over the range 2.5 µm to 16 µm and plotted as a function of wavenumber (the reciprocal of the wavelength in cm-1). ...
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A liquid crystal display includes a first insulating substrate with a top surface and a bottom surface. A pixel electrode is formed on the top surface of the first insulating substrate. The pixel electrode has a first opening pattern at each pixel area. The pixel electrode with the first opening pattern is substantially rectangular in shape with a first long side and a second long side, and first short side and a second short side. The pixel electrode is divided into an upper region defined by the first long side and the second long side and the first short side, and a lower region defined by the first long side and the second long side and the second short side. A second insulating substrate with a top surface and a bottom surface is arranged parallel to the first insulating substrate at a predetermined distance from the same such that the bottom surface of the second insulating substrate faces the top surface of the first insulating substrate. A common electrode is formed on the bottom surface of the
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We investigated light-emitting diodes consisting of an InGaAs/GaAs quantum well adjacent to a ferromagnetic δ〈Mn〉-layer. The magnetic field-dependent circular polarization obtained from both photo- and electroluminescence shows an unusual sign inversion depending on the growth parameters that can be explained by an interplay of the Zeeman splitting and Mn-hole interaction effects. Our results can help to understand the origin and control of the spin polarization on Mn doped GaAs structures, a fundamental step for the development of Mn-based spintronic devices. ...
MicroRNA expression analysis of human skin fibroblasts treated with high-fluence light-emitting diode-red light<...
TY - JOUR. T1 - MicroRNA expression analysis of human skin fibroblasts treated with high-fluence light-emitting diode-red light. AU - Mamalis, Andrew. AU - Koo, Eugene. AU - Tepper, Clifford G. AU - Jagdeo, Jared. PY - 2019/1/1. Y1 - 2019/1/1. N2 - Skin fibrosis is a chronic debilitating feature of several skin diseases that lead to characteristic increases in dermal fibroblast proliferation and collagen deposition through upregulation in components of the transforming growth factor beta (TGF-B)/SMAD pathway. In contrast to ultraviolet phototherapy, high-fluence light-emitting diode-generated red light (HF-LED-RL, 633 ± 15 nm) is a safe, economic and non-invasive therapy with in vitro evidence that supports modulation of the key cellular characteristics involved in the pathogenesis of skin fibrosis. Limited data exists pertaining to the effects of HF-LED-RL on human skin fibroblast microRNA (miRNA). Herein, we explored the effects of HF-LED-RL on fibroblast miRNA levels using RNA-seq and miRNA ...
Fracture Resistance Of Maxillary Premolars With Class II MOD Cavities Restored With Ormocer, Nanofilled, And Nanoceramic...
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US5328368A - Dental cure light cover - Google Patents
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Application of Light-cured Dental Adhesive Resin for Mounting Electrodes or Microdialysis Probes in Chronic Experiments |...
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Materials | Free Full-Text | The Influence of Water Sorption of Dental Light-Cured Composites on Shrinkage Stress | HTML
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Paper: Residual Bioload of Disinfected Curing-Lights in a Dental School Clinic (AADR Annual Meeting (March 21-24, 2012))
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- Dental Led Curing Light Input power: 5W LED Lamp Dental Led Curing Light wavelength: 450nm-470nm Dental Led Curing Light Product: HL-IV LED III Aluminum Base Dental Led Curing Light Color: silver, golden, light blue, dark blue, red,black Dental Led Curing . (78wy.com)
- 420-480mm Wavelength Dental LED curing light CE, ISO13485 Approved Quick Detail: Name Denlta LED curing light unit Surface Plastic Light source Blue color LED lamp Lamp Voltage 5W Handle Wireless Application All kind of resin. (78wy.com)
- b) curing of lower wavelength initiator adhesives (e.g. (healthmanagement.org)
- With a substantial array of wavelengths ranging from LED to Halogen, at Kerr Dental, you are sure to find the tool that is best suited for the needs of your dental practice. (kerrdental.com)
- Today we have two different kind of curing lights, those that are halogen (bulb) lights and those that are LED (light emitting diode). (blogspot.com)
- The dental curing lights, including Light-emitting diode (LED) lights and Quartz Tungsten Halogen (QTH) are increasingly gaining prominence in the dental operatory, on the back of their highly versatile nature and features. (factmr.com)
- The two most common types of dental curing lights are halogen curing lights and dental curing lights. (factmr.com)
- Its performance is further surpass the halogen curing light's, which can solidify 4-5mm deepness in 8 seconds. (drkits.com)
- Dental Product, Dental Equipment, Dental manufacturer / supplier in China, offering Hot Sale Halogen Dental LED Curing Light with CE, Suntem St-D303 Dental Unit with Ce, Suntem St-D540 New Design Dental Unit and so on. (made-in-china.com)
- The contraction stress generated during the photopolymerization of resin dental composites is the major disadvantage. (mdpi.com)
- Although there are many articles on the shrinkage stress of dental composites [ 13 , 14 , 15 ], the in-depth study on the relationship between water sorption and the shrinkage stress generated during curing is missing. (mdpi.com)
- These are the units that cause dental materials, such as composites, sealants, and cements, to set or polymerize in the mouth. (blogspot.com)
- In the modern dentistry, dental curing lights have gained a pole position in all dental operations and practices, as all dental adhesives, adhesive cements, and resin composites use light energy for comprehensive polymerization, which decides the eventual clinical success of a dental operation. (factmr.com)
- Dental curing lights are pieces of dental equipment used for the polymerization of light cure resin-based composites. (factmr.com)
- This work was aimed at the study of some physical properties of two current light-cured dental resin composites, Rok (hybrid) and Ice (nanohydrid). (sunderland.ac.uk)
- Glass-ionomer based hybrids incorporate another dental material, for example Resin-Modified Glass Ionomer Cements (RMGICs) and compomers (or modified composites). (wikipedia.org)
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- Our long history of developing state of the art impression materials that cater to the expectations of experts in the field of dentistry puts Kerr Dental above the rest. (kerrdental.com)
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- 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 is proud to offer the dental alloy, silver amalgam, in several different formulations. (kerrdental.com)
- Kerr Dental also features the OptiMix programmable amalgamator, which eliminates the need for control cards and ensures consistency and convenience. (kerrdental.com)
- Method: Specific curing lights (LE Demetron, Kerr) used in dental student clinics were disinfected prior to clinical use. (umich.edu)
- During the course of dental procedures both the dentist and the patient come into contact with many objects capable of transporting bioburden. (google.com)
- In use, the cure light tip is placed into the patient's mouth, while the handle of the cure light is held by the dentist. (google.com)
- For instance, dentist curing lights eliminate the time constraint and the dentist do not need to worry if the material was improperly placed. (factmr.com)
- The light itself however can and does contribute to providing heat to the tooth. (blogspot.com)
- Take a little more time, or at least move such a high powered light further back off the tooth and then slowly bring the light closer to your normal curing distance. (blogspot.com)
- Before dental curing lights were developed, different materials were used as resin-based composite materials to be placed in a tooth. (factmr.com)
- 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)
- 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)
- Pulpitis may be caused by dental caries that penetrate through the enamel and dentin to reach the pulp, or it may be a result of trauma, such as physical abuse of the tooth or thermal insults, including overheating from insufficiently cooled dental drills and use of dental curing lights. (wikipedia.org)
- This is why people who have lost their dental innervation have a reduced healing ability and increased rate of tooth injury. (wikipedia.org)
- I know it can get tedious doing this all day long, but when adhesives are not cured 'well' unfortunate things can happen. (blogspot.com)
- However, light curing is often taken for granted, as diagnosis analysis, preparation and the development of enhanced resins and adhesives and resins take all the attention away. (factmr.com)
- Lithiun Battery Wireless Dental Light Cure Unit With High Articulation Optical Fiber Description 1. (frbiz.com)
- LED, curing light Packing:Wooden case Color:Optional Weight:250kg Warranty:More than 360 days quality guarantee Stable Quality Dental Chair Price MSLDU02D, Dental Light Curing Unit Manufacture. (frbiz.com)
- portable dental led curing light , light cure unit with USB charger Function& features 1. (frbiz.com)
- Most cure light units are equipped a removable cure light probe which may be removed from the light curing unit for cleaning. (google.com)
- Samples were taken from seven areas on 20 light units: tip, light guide shank, blue-blocker shield, air vents, activation button, unit body, and the battery sides and end. (umich.edu)
- Cheap plastic handle white inbuilt LED curing light dental unit accessor Features 1. (78wy.com)
- The first point is that the unit produces visible light, not ultraviolet light. (blogspot.com)
- This heating effect or non-heating effect of the light unit is however not the most important thermal effect. (blogspot.com)
- From an engineering point of view the LED unit is comparable, if not preferable, to the traditional curing light for all the points you've mentioned: compact, rapid cure, and most importantly patient safe. (blogspot.com)
- Manufacturers of dental curing lights are increasingly focusing on creating light-curing unit that features sufficient light intensity, is easy to use, collimated beam, a large emission window of light probe, a broad-emission spectrum, and requires easy maintenance, to address the struggles associated with previously used dental curing lights, and to move ahead of the competition in dental curing lights market. (factmr.com)
- Dental Curing Light, LED Dental Curing Light, Curing Light manufacturer / supplier in China, offering Umg dB685p Best Dental Curing Light Dental Light Cure Unit, FDA Approved Colorful Dental Bib, Disposable Dental Bib, Dental Disposable Brush Micro Applicator and so on. (made-in-china.com)
- Dental, Dental Equipment, Dental Product manufacturer / supplier in China, offering Hot Sale Wireless Best Price Dental LED Curing Light, Suntem St-D303 Dental Unit with Ce, Suntem St-D540 New Design Dental Unit and so on. (made-in-china.com)
- The Coltolux LED from Coltène combines a slim curing probe with high output in a cordless lightweight pen-style design. (dentalproductshopper.com)
- The disposable cure light cover taught herein also prevents cross contamination between patients, without the requirement of cure light probe cleaning between patients. (google.com)
- Thank you for your insightful discussion explaining the importance of curing time related to polymerization heat build up and possible sensitivity. (blogspot.com)
- Dental professionals need to opt for ideal dental curing lights as improper polymerization of materials can result into clinical failures, including marginal discoloration, de-bonding issues, and sensitivity. (factmr.com)
- NM-L018 Rainbow Dental Wireless led curing light Feather 1.big power LED 2.Optional working time :10 sec, 15 sec .20 sec 3.Automatic inactive , automatic power off 4.Electric energy alarm 5.Bulky battery 6.Solidification time and depth 7.High articulation. (disqueenfrance.com)
- Magic Dental High quality dental curing light Dental Light CureSpecification: 1.Original imported 5W power LED from USA,colorful metal handle 2.High articulation optic fiber 3.Three working modes:Strong,flashing,gradually strong 4.Automatic power off 5. (disqueenfrance.com)
- The light features a power output 1500 mW/cm2. (dentalproductshopper.com)
- These lights put out a tremendous power (4000 mW /cm2) compared to typical lights that emit either 600 or 1200 mW /cm2 and are recommended to cure a material within 20 seconds. (blogspot.com)
- Indicated for use in both post and core dental build up procedures, the CoreRestore2 can create a solid and longer lasting composite core, with a short curing time. (kerrdental.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)
- The ability to temporarily bond restorations, crowns, or bridges allows dentists the time they need to create more permanent restorations without sacrificing patient comfort and dental function. (kerrdental.com)
- light , low light , getting brighter, flicker 4 :5-40 seconds curing time can be adjusted 5. (78wy.com)
- The inventor of this system was not familiar with visible light curing chemistry at the time, and therefore selected UV chemistry, which was quickly replaced by blue, visible light curing chemistry. (blogspot.com)
- The big difference between these high powered units and the typical units is that the material is forced to set all at once with no heat dissipation during the curing time. (blogspot.com)
- Yes, taking a little more time to prevent heat build up, and to also insure a well cured material, is worth it. (blogspot.com)
- You can select the right time for the different types of material you wish to cure, their speed of reaction and the clinical protocol you are following. (drkits.com)
- All Dental Curing Light wholesalers & Dental Curing Light manufacturers come from members. (disqueenfrance.com)
- Preventive measures include reading the manufacturers' operating instructions for curing devices and using radiation-filtering protection goggles. (niom.no)
- Advancing technology has revolutionized the dental curing light technology over years, as today, manufacturers of dental curing lights can develop many kinds of curing lights, ranging from argon laser to plasma arc curing lights. (factmr.com)
- As different dental procedures require different features in dental curing lights, manufacturers of dental curing lights can focus on manufacturing custom lights that can cater to a wide range of dental conditions. (factmr.com)
- Manufacturers include Fimet dental chairs. (ukdentalsupplies.com)
- Cross contamination or exchange of biologic materials between dental patients has become an important issue in the practice of dentistry. (google.com)
- The development of dental curing lights has changed the course of dentistry. (factmr.com)
- The development of a new technology which used light to activate resin materials transformed dentistry. (factmr.com)
- Proper clinical procedure dictated that the student cleaned all surfaces of the curing light with a liquid, cold disinfectant (Dispatch, Clorox) between patients. (umich.edu)
- The application of glass ionomer sealants to occlusal surfaces of the posterior teeth, reduce dental caries in comparison to not using sealants at all. (wikipedia.org)
- Dental sealants were first introduced as part of the preventative programme, in the late 1960s, in response to increasing cases of pits and fissures on occlusal surfaces due to caries. (wikipedia.org)
- These units produce a visible blue light that these materials absorb, causing them to set. (blogspot.com)
- Every dental curing light today is a visible blue light and does not produce ultraviolet light, which would not generally be safe for you, or the patient. (blogspot.com)
- 8) Includes an orange shade shim for blue light, protecting the use's safely. (made-in-china.com)