20 Jul 2023 --- Hydroxyapatite – a calcium phosphate mineral compound found naturally in teeth and bones – could be just as effective as fluoride when it comes to protecting against dental cavities, potentially offering a new alternative ingredient for toothpaste, according to a new study. Hydroxyapatite is already known to help patients with gum disease and tooth hypersensitivity, and can easily be included as a part of people’s regular daily cleaning routines.