Development of new apatite coating method as dental implant material

Research Project

Project/Area Number	05671694
Research Category	Grant-in-Aid for General Scientific Research (C)
Allocation Type	Single-year Grants
Research Field	Surgical dentistry
Research Institution	Kanagawa Dental College
Principal Investigator	FUJIHARA Tsutomu Kanagawa Dental College Assistant Professor, 歯学部, 助教授 (50084778)
Project Period (FY)	1993 – 1994
Project Status	Completed (Fiscal Year 1994)
Budget Amount *help	¥2,100,000 (Direct Cost: ¥2,100,000) Fiscal Year 1994: ¥700,000 (Direct Cost: ¥700,000) Fiscal Year 1993: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywords	Method of liqid phase deposhition / Apatite / Dental implant material / LPD(Lipuid Phase Deposhition)法 / アパタイト被膜 / 歯科インプラント材 / アパタイト皮膜
Research Abstract	The basic examination apatite coated by the LPD (Liquid Phase Deposition) method was done. As a result, the following finding was obtained. 1. The mole ratio of the density of a suitable calcium ion and phosphate ion of the dipping solution was 1.7. 2. Stainless steel, titanium, quartz and alumina ware suitable for ware of material coated with the apatite. 3. The pretreatment of the substrate process with the sodium hydroxide solution, and after is washing with purified water and ethanol by ultrasonication. 4. Iminodiacetic acid was used as clelating agent. 5. Surface compounds were found calcium deficient apatite containing carbonate, by x-ray diffraction and infrared absorption spectrum measurement deposition product. 6. As for the thin film extracted to the material, strength was insufficient. Then for heat-treated, the crystallization of apatite progresses and strength of a thin film has increased.