9FDA. Guidance for the Industry and FDA Staff-Class Ⅱ Special Controls Guidance Document: Root-Form Endosseous Dental Im- plants and Endousseous Dental Aubtments. [2004-05-12].http:// www. fda.gov.
10ASTM F1160-98. Standard Test Method for Shear and Bending Fatigue Testing of Calcium Phosphate and Metallic Medical Coatings.