Assertion: toothpaste's hydroxyapatite | /r/HasProperty | hap
Facets:
Source sentences:
text: But does hydroxyapatite (HAp) really work to protect and strengthen teeth?
text: Hydroxyapatite (HAp), in its natural form, is a form of calcium that makes up 97% of your tooth enamel and 70% of the dentin of your teeth.