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Dentin hypersensitivity may affect individuals' quality of life. [4] Over time, the dentin-pulp complex may adapt to the decreased insulation by laying down tertiary dentin, thereby increasing the thickness between the pulp and the exposed dentin surface and lessening the symptoms of hypersensitivity. [12]
Exposed dentin gives the microorganisms access to the pulp of the tooth through the dentinal tubules. [6] In the case of penetrating decay, the pulp chamber is no longer sealed off from the environment of the oral cavity.
The pulp of the tooth remains normal and healthy in dentin hypersensitivity. [10]: 510 Many topical treatments for dentin hypersensitivity are available, including desensitizing toothpastes and protective varnishes that coat the exposed dentin surface. [16] Treatment of the root cause is critical, as topical measures are typically short lasting.
“If you have exposed dentin, very thin enamel, exposed cavities or root surfaces showing, the acid in whitening strips can erode more tooth structure than can be remineralized and so should be ...
Dentin and cementum are more susceptible to caries than enamel because they have lower mineral content. [46] Thus, when root surfaces of teeth are exposed from gingival recession or periodontal disease, caries can develop more readily. Even in a healthy oral environment, however, the tooth is susceptible to dental caries.
The hydrodynamic theory proposes that when dentinal tubules are exposed at the pulp and dentine surface, external stimuli cause changes in fluid flow. [7] Dentinal tubules may become exposed due to various reasons: e.g. dental erosion, enamel loss and periodontal diseases. [8]
View from above of an anterior (front) tooth showing severe tooth wear which has exposed the dentin layer (normally covered by enamel). The pulp chamber is visible through the overlying dentin. Tertiary dentin will have been laid down by the pulp in response to the loss of tooth substance. Multiple fracture lines are also visible.
“We’re already exposed through our electronics, automobiles, furniture … this is part of the big picture of exposure,” she adds. Liu says her advice is the same as it's been: “If you can ...
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