• The development of teeth is initiated by epithelial-mesenchymal interactions, which form dental papilla cells and dental sac cells, subsequently forming pulp, dentin, cementum, periodontal ligament and proper alveolar bone, except enamel 1 - 4 . (researchsquare.com)
  • By histological means, ankylosis of teeth is defined as the fusion of the root surface (either cementum or dentin) with the surrounding alveolar bone. (oatext.com)
  • In the periodontium, the cementum of a tooth is attached to the alveolar bone by the periodontal ligament (PDL) and the root is contained within the alveolar bone socket. (chestervetclinic.com)
  • Teeth, composed of three mineralized tissues (dentine, cementum, and enamel), constitute important models for gaining insight into the general processes of biological mineralization. (researchsquare.com)
  • These data link the mechanics of chewing to the biology of tooth-supporting tissues, revealing how a stem cell niche is responsible for the remarkable adaptability of the junctional epithelium to different diets. (bvsalud.org)
  • Although PDL and bone are two dissimilar tissues in physical and chemical properties, the continuity formed by blood vessels enables a flow of nutrients and maintains cellular activity responsible for PDL turnover and bone remodeling. (chestervetclinic.com)
  • In facial morphogenesis, neural crest cells migrate into the facial region, where they form the skeletal and connective tissue and all dental tissues except the enamel. (medscape.com)
  • Using cluster sampling techniques of form, function or position of the variations in the prevalence of dental 500 children (aged 4-6 years) were teeth, bones and tissues of the jaw and and soft tissue anomalies. (who.int)
  • Here, we report that CXCR4/CXCL12 signaling impacts enamel progenitor cell proliferation and motility in dental stem cell niche cells. (elsevierpure.com)
  • These results suggest that CXCR4 expression may be critical for activation of enamel progenitor cell division and that CXCR4/CXCL12 signaling may control movement of epithelial progenitors from the dental stem cell niche. (elsevierpure.com)
  • However, the mechanism of dental mineralization is still far from being revealed, which restricts the process of dental tissue engineering and tooth regeneration. (researchsquare.com)
  • Ectomesenchymal stem cells (EMSCs) derived from the cranial neural crest are significant in tooth development and dental mineralization. (researchsquare.com)
  • Dental developmental abnormalities (DDAs) are evidenced by an abnormal tooth shape or number such as peg-shaped maxillary lateral incisors (peg-lateralis), congenital missing tooth, impacted maxillary permanent teeth, germinated tooth, fused tooth, twinned tooth, taurodontism, or supernumerary teeth. (springeropen.com)
  • However, the tooth eruption generically known, is one of the stages of a phenomenon that begins with the rupture of the pedicle joining the tooth germ to the dental lamina in the cap stage odontogenesis and accompanies the entire life of the enamel organ, going though an intraosseous migration process for the final position in the oral cavity 1. (08eins-preview.ch)
  • Untreated dental cavities eventually allow bacteria to work their way down to the center of the tooth, where they may infect the pulp tissue. (westcobbdentistry.com)
  • Although the lengthy and sometimes painful surgery relieves the agony of an infection, a root canal results in a dead tooth with no living soft tissue, or dental pulp, inside. (news-medical.net)
  • Today, scientists report development of a peptide hydrogel designed to stimulate the growth of new blood vessels and dental pulp within a tooth after the procedure. (news-medical.net)
  • The dentist then removes the infected dental pulp and fills the space with tiny rubber rods called gutta percha and caps the repaired tooth with a crown. (news-medical.net)
  • The material would stimulate both angiogenesis, or new blood vessel growth, and dentinogenesis, or proliferation of dental pulp stem cells, within the tooth. (news-medical.net)
  • Now, the team is injecting the peptide hydrogel into the teeth of dogs that have undergone root canals to see if it can stimulate dental pulp regeneration in a living animal. (news-medical.net)
  • The incidence of oral and dental trauma affecting anterior teeth increases significantly, upper central incisors are mentioned by researchers as the most likely 1 and cases usually fall within the age group from 10 to 14 years 2-3 . (bvsalud.org)
  • Persons with dental involvement may have had their teeth sealed or bonded for pitting, or a gingival fibroma resected. (medscape.com)
  • These ingredients are used in many dental products used to address people with poor or no enamel issues. (lovelysmiles.co)
  • Tronstad claimed that involvement of dental trauma (luxation) is the primary reason for this injury, particularly avulsion of teeth and their presence in a dry environment for a critical time, which causes cell death on the root surface. (oatext.com)
  • Carefully clean molars and pre-molars (because these teeth are located in the rear portion of the dental arch, they are often neglected, making them more susceptible to plaque buildup). (dental-onyx.com)
  • Use dental floss every day to get rid of plaque between your teeth. (dental-onyx.com)
  • Students who were aged only cause aesthetic problems but also Furthermore, since dental anomalies 4-12 years and showed good coopera- can lead to dental problems such as such as missing teeth, supernumerary tion during examination were recruited functional disorders, dental caries, pulp teeth and gemination problems are for the study. (who.int)
  • Root canal treatment - also called endodontics ("endo" - inside, "dont" - tooth) - is a set of specialized procedures designed to treat problems of the soft pulp (nerve) tissue inside the tooth. (westcobbdentistry.com)
  • A procedure for root canals becomes necessary when infection or inflammation develops in the pulp tissue of the tooth. (westcobbdentistry.com)
  • Another path by which bacteria may come into contact with pulp is via chipped or cracked teeth. (westcobbdentistry.com)
  • Any opening in the protective enamel coating has the potential to allow bacteria access to the tooth's pulp. (westcobbdentistry.com)
  • Trauma to the tooth - the kind that might result from a sports injury or automobile accident, for example - is also a major cause of pulp tissue damage. (westcobbdentistry.com)
  • Next, a small opening is made in the surface of the affected tooth to give access to the pulp chamber and root canals. (westcobbdentistry.com)
  • Instead of having to rip out everything inside the tooth, the dentist could go in with a smaller drill bit, remove a little bit of the pulp and inject our hydrogel,' Kumar says. (news-medical.net)
  • Maxillary central incisor is the tooth most commonly involved, and it often evolves to pulp necrosis after trauma. (bvsalud.org)
  • Root fractures usually affect the middle third, accounting for about 20 to 25% of cases, and there can be necrosis of tooth pulp due to disruption of the nervousvascular bundle 2 . (bvsalud.org)
  • According to Andreasen & Andreasen 1 and Caprioglio & lavagnoli 7 , root fractures in permanent teeth predominantly affect the upper central incisors in individuals aged between 11 and 20 years and 20 to 44% of cases evolve to pulp necrosis. (bvsalud.org)
  • and even the eventual loss of bone structure from the area of the missing tooth. (westcobbdentistry.com)
  • Dentin is the classified tooth bone just below the enamel. (lovelysmiles.co)
  • The result is an area of cementum-devoid root surface that is now susceptible to migration and repopulation by the faster bone forming cells rather than by the slower periodontal ligament fibroblasts or cementoblasts. (oatext.com)
  • and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). (lookformedical.com)
  • A family of structurally related collagens that form the characteristic collagen fibril bundles seen in CONNECTIVE TISSUE. (lookformedical.com)
  • A non-fibrillar collagen that forms a network of MICROFIBRILS within the EXTRACELLULAR MATRIX of CONNECTIVE TISSUE. (lookformedical.com)
  • A non-vascular form of connective tissue composed of CHONDROCYTES embedded in a matrix that includes CHONDROITIN SULFATE and various types of FIBRILLAR COLLAGEN. (lookformedical.com)
  • The purpose of this study was to investigate the expression pattern of Mage-D1 in rat tooth germ development and its differential mineralization ability to ectomesenchymal stem cells (EMSCs), and to explore its potential mechanism. (researchsquare.com)
  • Results showed that the expression of Mage-D1 during rat tooth germ development was temporally and spatially specific. (researchsquare.com)
  • These findings indicate that Mage-D1 is absolutely important in tooth germ development. (researchsquare.com)
  • On the other hand, if germ cells are forced to remain attached to the seminiferous epithelium for a period of time longer than necessary to complete their development, they will degenerate and eventually be phagocytosed by Sertoli cells and for this, proper regulation of germ cell migration in the seminiferous epithelium and at blood-testes barrier (abbreviated as BTB) is essential (Ref.1). (proteinlounge.com)
  • Mage-D1 promotes the proliferation ability of EMSCs but inhibits their migration ability. (researchsquare.com)
  • There is some confusion between the term ankylosis and other terms used to describe its consequences, such as infraocclusion, meaning a tooth not reaching the occlusal plane [2], submergence, impaction, and incomplete eruption. (oatext.com)
  • Machtei EE, Wasenstein SM, Peretz B, Laufer D. The relationship between cervical enamel projection and class II furcation defects in humans. (spindlerperio.net)
  • People with healthy teeth and gums but who have stains or a yellowish tint seem to get the best results. (lovelysmiles.co)
  • On some occassions you may feel a liitle tingling or perhaps a slight sensitivity.Teeth and or gums may be sensitive for a short period of time after the treatment.You may see temporary bleaching on the gums but this is normal and will disappear usually less than an hour. (lovelysmiles.co)
  • Using a soft-bristled brush, gently brush your gums each time you brush your teeth (with a vertical motion from the gum to the tooth). (dental-onyx.com)
  • In fact, oral health treatments (teeth cleaning) and regular exams are really important to ensure your teeth and gums stay healthy. (dental-onyx.com)
  • Neutrophil migration into healthy mouse JE does not require TLR2 or TLR4. (washington.edu)
  • Analyses of fossil tooth enamel show that the primates were restricted to forested habitats. (dailypositive.org)
  • At the chronologic age of six to seven, before puberty begins, mixed dentition starts as the deciduous teeth which are replaced with permanent teeth. (springeropen.com)
  • One of the regions we were really interested in was an organ in and of itself, the tooth. (news-medical.net)
  • The maxillary DDAs were assessed as mesiodens, congenital missing teeth, peg-shape lateral incisors, or impacted teeth. (springeropen.com)
  • Diprotodon may have formed polygynous societies, possibly using its powerful incisors to fight for mates or fend off predators, such as the largest-known marsupial carnivore Thylacoleo carnifex . (wikipedia.org)
  • The teeth studied comprised 60 incisors extracted for periodontal reasons. (who.int)
  • Clinical significance of furcation anatomy of the maxillary first premolar: a biometric study on extracted teeth. (spindlerperio.net)
  • Cleft lip may occur with a wide range of severity, from a notch located on the left or right side of the lip to the most severe form, bilateral cleft lip and alveolus that separates the philtrum of the upper lip and premaxilla from the rest of the maxillary arch (see the image below). (medscape.com)
  • The ratio of carbon-13 and carbon-12 isotopes in these types of plants is as follows: C4 plants: -16 to -10 ‰ CAM plants: -20 to -10 ‰ C3 plants: -33 to -24 ‰ Limestones formed by precipitation in seas from the atmospheric carbon dioxide contain normal proportion of 13C. (wikipedia.org)
  • Its name is most probably derived from the white, coarse, salt-resembling, crystalline limestones which form the lens. (palaeo-electronica.org)
  • During a root canal, the dentist drills off the top of an infected tooth to access the soft tissue inside. (news-medical.net)
  • The gum is the soft tissue surrounding the neck of teeth which also covers the jawbone. (dental-onyx.com)
  • 2004), anatomy and quantity of teeth and in the teeth apex (Harvey & Emily, 1993). (researchgate.net)
  • Several forms of genomic instability are common in colon cancer: MSI (Microsatellite Instability), CIN (Chromosome Instability), and chromosome translocations. (proteinlounge.com)
  • Containment of traumatized tooth can preserve crown vitality and avoid resorption or migration. (bvsalud.org)
  • The prognosis of ankylosed teeth undergoing significant replacement resorption is hopeless, and should be replaced with an implant prosthesis. (oatext.com)
  • In order to differentiate between the two different terms, one should refer to ankylosis in diagnostic terms, so that when a tooth is proven as ankylosed, the clinician should anticipate and radiographically look for replacement resorption as a progressive process accompanying ankylosis and compromising the tooth prognosis. (oatext.com)
  • If you have sensitive teeth already, it may pay to brush your teeth with Sensodyne toothpaste for 3 to 4 days prior to your treatment to reduce any possible but unlikely sensitivity. (lovelysmiles.co)
  • Do not Eat, drink or brush your teeth for a mimimum of 2 hours prior to your treatment. (lovelysmiles.co)
  • He is perhaps best known for his genetic findings suggesting that Neanderthals , an extinct form of human that lived in Eurasia more than 30,000 years ago, mated with modern humans and left their genetic imprint in people who live today. (popular-archaeology.com)
  • Discuss the diagnosis and prognosis of furcation invasions by tooth type and compare to single rooted teeth. (spindlerperio.net)
  • The outside of the teeth, the enamel, is clear and glass-like.The colour that you see show through from the teeth structure under the enamel is called dentin. (lovelysmiles.co)
  • Then whitening Accelerator Light system is applied to activate a fast safe whitening action.This whitening accelerator system powerfully accelerates the whitening process by high intensity blue light activating the gel within the microscopic pores in the tooth enamel as the whitening gel penetrates the clear tooth enamel bleaching out staining during the gels migration towards the dentin. (lovelysmiles.co)
  • Since the junctional epithelium directly attaches to the tooth surface via hemidesmosomes, a soft diet requires minimal mastication, and consequently, lower distortional strains are produced in the tissue. (bvsalud.org)
  • A healthy gum is pink and firm, it attaches around the neck of the teeth and does not bleed when brushing or flossing. (dental-onyx.com)
  • It can be found in the "fossil" shadows of our past that actually exist today within our genes-clues that have fascinating implications for human evolution and past population migrations and dispersals. (popular-archaeology.com)
  • The other is in the form of a fossil excavated from a paleontological site. (10000birds.com)
  • As I was just starting to examine it, a famous paleontologist who happened to be passing by came over to look, and immediately determine that it was a fossil primate tooth, a very rare find indeed. (10000birds.com)
  • So, I put it in a special container and months later, state-side, I showed it to a world-famous fossil mammal expert who said, "Why are you showing me this Tigerfish tooth? (10000birds.com)
  • Emile Zuckerkandl and the physical chemist Linus Carl Pauling introduced the term "paleogenetics" in 1963, and in 1984 a team led by Allan Wilson published the achievement of the first sequence of ancient DNA isolated from the remains of the quagga , an extinct form of zebra. (popular-archaeology.com)
  • two protruding front teeth") is an extinct genus of marsupial from the Pleistocene of Australia containing one species , D. optatum . (wikipedia.org)
  • After a monitoring period, root canal obturation was performed and the tooth is clinically and radiographically stable 2 years after the trauma. (bvsalud.org)
  • 5 think that horizontal fractures in anterior teeth derive from severe trauma. (bvsalud.org)
  • Following tooth luxation, injury to root surface due to mechanical trauma occurs in variable degrees, forms, and distribution. (oatext.com)
  • One panel member felt strongly that 3 or more radial migration lines should constitute a major sign. (medscape.com)
  • Experts have also debated whether the civilisation succumbed to a traumatic invasion by so-called "Aryans" whose chariots they were unable to resist, or in fact peaceably assimilated a series of waves of migration over many decades or centuries. (blogspot.com)
  • The key to understanding Stonehenge is to see it as a hub for the waves of migration that marked the early history of the British Isles, from the hunter-gatherers who crossed the land bridge that used to exist across the North Sea, to the first farmers emerging during the Neolithic era 6000 years ago and onto the Beaker People who brought metal-working technology about another 1500 years later. (counterfire.org)
  • So the tooth is very susceptible to subsequent infection and, ultimately, falling out. (news-medical.net)
  • Fluorine is a highly reactive element and readily hydrolyzes to form hydrogen fluoride and oxygen. (cdc.gov)
  • To whiten teeth, an oxygen action type whitening gel is applied to the front of the teeth to be whitened. (lovelysmiles.co)
  • Furthermore, because relatively large bioapatite samples are required for carbonate clumped isotope measurements (Δ47), replicate sampling of thin tooth enamel may not be feasible in many situations. (authorea.com)
  • Recent studies have shown that Mage-D1 is closely related to tooth development, but its specific regulatory mechanism is unclear. (researchsquare.com)
  • Recently, the effects and mechanism of Mage-D1 in tooth development have been a focus of research. (researchsquare.com)
  • The teeth, being made of durable enamel (not common in fish) are readily discovered. (10000birds.com)
  • Could there have been out-of-India migration that might explain common genetic origins of Indians and West Eurasians? (riazhaq.com)
  • The most common form of fibrillar collagen. (lookformedical.com)
  • An international team of researchers who discovered a vast network of stone walls along the River Nile in Egypt and Sudan say these massive 'river groynes' reveal an exceptionally long-lived form of hydraulic engineering in the Nile Valley, and shed light on connections between ancient Nubia and Egypt. (myscience.uk)
  • Researchers from France and their international colleagues have found aggressive intestinal bacteria Helicobacter pylori in a 5300-year-old mummy, famously known as Ötzi - the Copper Age man, discovered frozen in a European glacier in 1991, shedding new light on the history of human migration. (dailypositive.org)
  • This is a possibility raised by Indian researchers in response to the inward migration of West Eurasians to India. (riazhaq.com)
  • The aim of this study was to evaluate strength of the bond between porcelain laminate veneers and tooth surfaces etched with acid and laser, separately and together. (who.int)
  • After the shear tests, Scanning electron microscopy images of the tooth surfaces were obtained at a magnification of x3,800. (who.int)
  • Van Leeuwenhoek, using his simple microscopes, first observed microorganisms on tooth surfaces and can be credited with the discovery of microbial biofilms. (cdc.gov)
  • How about this: A natural tooth that's saved via root canal treatment and restoration helps you avoid the problems that commonly occur when teeth must be removed. (westcobbdentistry.com)
  • Cortical tuber: When cerebellar cortical dysplasia and cerebral white matter migration tracts occur together, they should be counted as one rather than two features of tuberous sclerosis. (medscape.com)
  • Furthermore, nothing is permanent in this life and surely not teeth whitening. (lovelysmiles.co)
  • These blocks were bonded to the teeth with dual cured resin cement and shear tests were then performed. (who.int)
  • The line of cleft always starts on the lateral part of the upper lip and continues through the philtrum to the alveolus between the lateral incisor and the canine tooth, following the line of sutura incisiva up to the foramen incisivum. (medscape.com)
  • It is the only marsupial and metatherian that is known to have made seasonal migrations. (wikipedia.org)
  • It was made in conjunction with the band that initially formed to back Valle at live shows and named itself after one of his songs, Azimuth soon to change the spelling to Azymuth. (prowissen-lauf.de)
  • Restorations can take many forms, from traditional gold crowns to tooth replicas made of high-tech tooth-colored material. (dentalinnovationsokc.com)
  • The study also dates a later migration of the woolly mammoth to around 4,000 to 5,000 years ago. (academic-times.com)
  • So, when they set out to study of the migration and habitat use of these animals in a South African lake in the Mapungubwe National Park, near the border with Botswana and Zimbabwe, they were not necessarily looking for fish flying out of the water. (10000birds.com)
  • The objectives of this study were to investigate migration of volatile organic compounds (VOCs) from cross-linked polyethylene (PEX) pipes used for drinking water produced by different production methods, and to evaluate their potential risk for human health and/or influence on aesthetic drinking water quality. (who.int)
  • Further studies confirmed that p75NTR participates in the regulation of tooth development maybe by changing the activity of the key factor distal-less homeobox/msh homeobox (Dlx/Msx), and melanoma-associated antigen D1 (Mage-D1) seems to be play a role in the differentiation and mineralization of EMSCs 5 , 6 . (researchsquare.com)
  • Wang HL, Burgett FG, Shyr Y. The relationship between restoration and furcation involvement on molar teeth. (spindlerperio.net)
  • Such injuries can take several forms, including electric current burns, flash burns, and contact burns. (medscape.com)
  • Tooth Injuries. (bvsalud.org)
  • Conversely, calcite found in salt domes originates from carbon dioxide formed by oxidation of petroleum, which due to its plant origin is 13C-depleted. (wikipedia.org)
  • Carbonate clumped isotope thermometry has been calibrated for a wide variety of carbonates, including calcite, aragonite, dolomite, siderite, and many of their biogenic forms. (authorea.com)
  • No association was found between production method of PEX pipes and concentration of migration products. (who.int)
  • The amount of fluorides accumulated depends on the type of plant and soil and the concentration and form of fluoride in the soil. (cdc.gov)
  • In natural water, fluoride forms strong complexes with aluminum in water, and fluorine chemistry in water is largely regulated by aluminum concentration and pH (Skjelkvale 1994). (cdc.gov)
  • Once, an Earthwatch volunteer wet-screening on a 2.5 million year old site brought me a tiny white enamel tooth, thinking it to be an important find. (10000birds.com)
  • The Scandinavian Neolithic (4000-1700 cal BC) and Early Bronze Age (1700-1100 cal BC) were times of important cultural transformations and human migrations. (springer.com)
  • According to recent results from ancient DNA (aDNA) research, migration was an important factor for the spread of the TRB complex and agriculture into Scandinavia (e.g. (springer.com)
  • It is the strength of the HP that is important and to be honest we do not need to use high levels of HP to whiten teeth. (lovelysmiles.co)
  • While technology continues to render old devices and techniques useless , some of the world's most ancient tools continue to form the bedrock of everyday life. (curiosityhuman.com)
  • Cerebral white matter radial migration lines: Radiographic confirmation is sufficient. (medscape.com)