| 摘要 |
PROBLEM TO BE SOLVED: To provide a bone restoration material which is hardly dislodgeable from a prosthesis point and causes the tight outgrowth replacement of a neobone and to provide a bone restoration material which well repairs the narrow point of the inlet of the pulp cavity, etc. SOLUTION: The bone restoration material, formed by depositing granules of a calcium phosphate material into a sponge body of carboxymethyl chitin, forming this sponge body to a cubic shape of 10 mm square, specifying the water absorption of the volumetric expansion coefft. in water absorption after immersion for 10 minutes in distilled water to 1.3 to 2.2 times in order to repair a recessed point, etc., and specifying the volumetric expansion coefft. in water absorption to 4 to 11 times in order to repair the point, such as the inlet of the pulp cavity, which is narrow and where an internal defect is large, is used. |
