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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. Dental restoration - Wikipedia

   en.wikipedia.org/wiki/Dental_restoration

   A veneer is a very thin shell of porcelain that can replace or cover part of the enamel of the tooth. Full-porcelain restorations are particularly desirable because their color and translucency mimic natural tooth enamel. Another type is known as porcelain-fused-to-metal, which is used to provide strength to a crown or bridge. These ...

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. Can you reverse a cavity in your tooth? Here's what ... - AOL

   www.aol.com/lifestyle/reverse-cavity-tooth-heres...

   “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 ...

6. Hard tissue - Wikipedia

   en.wikipedia.org/wiki/Hard_tissue

   Enamel is the hardest substance in the human body and contains the highest percentage of minerals, [3] 96%, with water and organic material composing the rest. [4] The primary mineral is hydroxyapatite, which is a crystalline calcium phosphate. [5] Enamel is formed on the tooth while the tooth is developing within the gum, before it erupts into ...

7. Do I need to worry about brushing my teeth too hard? Here’s ...

   www.aol.com/lifestyle/worry-brushing-teeth-too...

   Brushing teeth too hard can wear down the enamel, aka the protective layer on your teeth. (Photo illustration: Jay Sprogell for Yahoo News; photo: Getty Images) (Photo illustration: Jay Sprogell ...