👉 Fibrovasal refers to a type of hydroxyapatite crystal that forms in the mouth. It is composed of calcium phosphate (Ca3(PO4)2) and its derivatives, which are highly resistant to wear and erosion by acids and enzymes. The term "fibrovasal" was coined by researchers at the University of Tokyo in 1967. They used a technique called "hydroxyapatite crystal growth" to create fibrovasals that were similar
