Abstract
The effect of fluoride content in apatites as a filler of dental composite resins on their mechanical properties was studied.Fluoridated hydroxyapatites were synthesized at 80℃ and at pH 7.4, and mixed with 2・2′-bis(4-methacryloxyethoxy phenyl)-propane.The compressive strength and Knoop hardness of the composites did not change significantly with the degree of fluoridation.In tooth cavities, the composites seemed to adhere well to enamel without a bonding agent, and any microleakage was not found.The adhesive strength of the composites was also scarcely affected by the fluoride content.
