Which elements in saliva protect against tooth decay?
A) Salivary-amylase and ptyalin
B) Secretin and fluoroxidin
C) Endogenous enamelin and salivary ß-amylase
D) Exogenous fluoride and a pH 7.4

Question

Quizplus · Accepted Answer

Saliva contains an exogenous fluoride ion which can help to protect against tooth decay. Fluoride can strengthen the enamel of teeth and make them more resistant to acid erosion. A pH of 7.4 is also important, as this is the neutral pH of saliva and can help to neutralize any acid that may be present in the mouth, which can prevent tooth decay.

Which Elements in Saliva Protect Against Tooth Decay