Patent ID: 7320728
Filing Date: 2008-01-22
Classification: A23G,A61K,A61L,A61Q,C01B

Abstract:
1. A method of using a mixture comprising rod-shaped apatite crystals, the method comprising applying, on at least one selected from the group consisting of teeth and bones, a mixture comprising rod-shaped apatite crystals of the formula Ca 5 (PO 4 ) 3 (OH) x F y , where a) the length-to-breadth ratio of substantially all of the rod-shaped apatite crystals is≧5, b) x+y=1, and c) the breadth of the rod-shaped apatite crystals is in a range of 0.01 to 0.02 μm and the length of the rod-shaped apatite crystals is in a range of 0.1 to 0.2 μm.