Which type of fluoride may be responsible for depositing stains on teeth and restorations?

Question

Quizplus · Accepted Answer

Stannous fluoride can cause brownish stains on teeth and restorations, particularly if it is in a higher concentration or pH. Acidulated phosphate fluoride can also cause staining, but it is more commonly due to poor technique or inadequate rinsing after application. Neutral sodium fluoride and sodium fluoride do not typically cause staining.

Which Type of Fluoride May Be Responsible for Depositing Stains