The teeth of mammals and humans contain hydroxyapatite (an inorganic constituent also found in bone), While shark teeth contain the mineral fluoroapatite (fluorinated calcium phosphate), reports Danbury, CT dentist Jay M. Marks, DMD.
Toothpaste often contains fluoride,in order to make teeth more acid resistant. A small amount — much less than 1 percent — of hydroxide is exchanged by fluoride on surface of human teeth after brushing, agrees Dr. Jay Marks. However the surface of) shark teeth contains 100 percent fluoride. Sharks do not suffer from caries (cavities).
Sharks also have the unique ability to replace their teeth several times during their lives, in addition to the unique structure of their teeth. This is not due to cavities, but due to the fact that their teeth sometimes wind up stuck in prey - and luckily for them, they are constantly regrowing new teeth, just like we regrow our fingernails or hair.
If you do not have shark's teeth and would like to keep your teeth and smile healthy, contact us for a consultation.
by discovery News