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When enough acid is produced so that the pH goes below 5.5, the acid dissolves carbonated hydroxyapatite, the main component of tooth enamel. [7] The plaque can hold the acids in contact with the tooth for up to two hours, before it is neutralized by saliva.
The diameter of the dentinal tubules is largest near the pulp (about 2.5 μm) and smallest (about 900 nm) at the junction of dentin and enamel. [82] The carious process continues through the dentinal tubules, which are responsible for the triangular patterns resulting from the progression of caries deep into the tooth.
Consequently, enamel, unlike many other tissues of the body, has no way to regenerate itself. [17] After destruction of enamel from decay or injury, neither the body nor a dentist can restore the enamel tissue. Enamel can be affected further by non-pathologic processes. Enamel is covered by various structures in relation to the development of ...
It is not a permanent varnish but due to its adherent nature it is able to stay in contact with the tooth surface for several hours. It may be applied to the enamel, dentine or cementum of the tooth and can be used to help prevent decay, [1] [2] [3] remineralise the tooth surface [4] [5] [non-primary source needed] and to treat dentine ...
However, a bathtub with surface-level web-shaped cracks can be refinished and last many more years. [1] If there is rust on the bathtub, then that part should be removed and treated as necessary; otherwise, the rust can spread. [1] If the bathtub cannot hold water, chips or cracks can be filled with a polyester putty such as Bondo.
Fragoso, et al. (2011) found that applying fluoride paste on enamel surface after microabrasion process provides higher hardness & more enamel smoothness. [10] in addition, Segura et al found that the treated enamel surface become more resistant to demineralisation than untreated enamel and less colonisation of bacteria occur. [11]
Toothpaste from a tube being applied to the bristles of a toothbrush. Toothpaste is a paste or gel dentifrice used with a toothbrush to clean and maintain the aesthetics and health of teeth.
The dental pellicle, or acquired pellicle, is a protein film that forms on the surface enamel, dentin, artificial crowns, and bridges by selective binding of glycoproteins from saliva that prevents continuous deposition of salivary calcium phosphate. It forms in seconds after a tooth is cleaned, or after chewing.