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2. Tooth enamel - Wikipedia

   en.wikipedia.org/wiki/Tooth_enamel

   The enamel on primary teeth has a more opaque crystalline form and thus appears whiter than on permanent teeth. The large amount of mineral in enamel accounts not only for its strength but also for its brittleness. [6] Tooth enamel ranks 5 on Mohs hardness scale (between steel and titanium) and has a Young's modulus of 83 GPa. [4]

3. Tooth decay - Wikipedia

   en.wikipedia.org/wiki/Tooth_decay

   Bacteria can penetrate the enamel to reach dentin, but then the outer surface may remineralize, especially if fluoride is present. [91] These caries, sometimes referred to as "hidden caries", will still be visible on X-ray radiographs, but visual examination of the tooth would show the enamel intact or minimally perforated.

4. Remineralisation of teeth - Wikipedia

   en.wikipedia.org/wiki/Remineralisation_of_teeth

   Tooth remineralization is the natural repair process for non-cavitated tooth lesions, [1] [2] in which calcium, phosphate and sometimes fluoride ions are deposited into crystal voids in demineralised enamel. Remineralization can contribute towards restoring strength and function within tooth structure.

5. Dentin hypersensitivity - Wikipedia

   en.wikipedia.org/wiki/Dentin_hypersensitivity

   Tooth decay: Tooth decay is one of the most common causes of sensitive teeth. When the enamel on the surface of the tooth is worn away or eroded, the underlying dentin becomes exposed. This can cause sensitivity to hot, cold, or sweet foods and beverages. Gum disease: Gum disease can cause sensitive teeth by exposing the roots of the teeth. As ...

6. Need tooth pain relief fast? Effective, dentist-approved home ...

   www.aol.com/lifestyle/tooth-pain-relief...

   Your tooth's enamel, cementum, and dentin usually protect the pulp, but if any of those layers are damaged or irritated, the pulp can get inflamed. Cue the pain.

7. Dental attrition - Wikipedia

   en.wikipedia.org/wiki/Dental_attrition

   Enamel of molar teeth may appear thin and flat. When in occlusion the teeth may appear the same height which is particularly apparent for anterior teeth. Sensitivity or pain: Attrition may be entirely asymptomatic, or there may be dentin hypersensitivity secondary to loss of the enamel layer, or tenderness of the periodontal ligament caused by ...