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Fluorapatite Ca 5 F(PO 4 ) 3  can be synthesized by melting of CaF 2  together with Ca 3 (PO 4 ) 2  at 1660 °C in the molar ratio CaF 2  · 3 Ca 3 (PO 4 ) 2 . Fluorapatite is more resistant against acids than hydroxylapatite Ca 5 OH(PO 4 ) 2  and can activate the remineralisation in dental enamel. The apatite of dental enamel is more resistant against mechanical stress than synthetic apatite due to a different microstructure of the crystal grains.

zeitschrift für naturforschung b

Fluorapatit Ca 5 F(PO 4 ) 3  - Ein Modell zur Synthese der Zahnhartsubstanz im System CaF 2 -Ca 3 (PO 4 ) 2  / Fluorapatite - A Model for the Synthesis of Dental Enamel in the System CaF 2 -Ca 3 (PO 4 ) 2