Initial Stability Study of Calcium Phosphate Coated Dental Implants  

作　　者：Changkook YOU In-sung YEO Tae-kwan EOM M W AHN Sukyoung KIM 

机构地区：[1]School of Materials Sci. & Eng., Yeungnam University, Gyeongbuk 712-749, Korea [2]Department of Dentistry, Special War Command, Seoul 138-110, Korea [3]R&D Center, Osstem Co. Ltd., Yeonsan-Gu, Busan 611-073, Korea [4]Dept.of Orthopedic Surgery, College of Medicine, Yeungnam Univ., Daegu, Korea

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2005年第B12期246-248,共3页武汉理工大学学报（材料科学英文版）

基　　金：SupportedbyaGrantfromYeungnamUniversityin2005andaGrant(No.R012005000108030)fromtheBasicResearchProgramoftheKoreaScience&EngineeringFoundation

摘　　要：Thin film of biodegradable calcium phosphate coated on threaded commercially pure titanium （ cp- Ti ） dental implants has been investigated as one of alternatives to eliminate the problem of the long- term instability of plasma sprayed HA coated implants. In order to compare in-vivo bone-to-implant response behavior among as-machined, HA coated and CMP coated groups, each group was implanted into New Zealand white mature male rabbits for 2 and 6 weeks, and then in-vivo biological behavior was examined in terms of H＆E staining. Initial stability and removable torques of implants were compared among three groups. Measured removable torque of CMP coated specimen at 6 weeks after inplantation was significantly higher than that of non-coated group, but slightly lower than that of HA coated group, without any inflammatory response at the surrounding of the implants. The initial stability （ ISQ value ; implant stability quotient ） of CMP coated specimen at 2 weeks after implantation was slightly lower than that of HA coated group and significantly higher than that of non-coated group. However, after 6 weeks, ISQ value of CMP coated group was slightly higher than that of HA coated group and significantly higher than that of non-coated group.Thin film of biodegradable calcium phosphate coated on threaded commercially pure titanium （ cp- Ti ） dental implants has been investigated as one of alternatives to eliminate the problem of the long- term instability of plasma sprayed HA coated implants. In order to compare in-vivo bone-to-implant response behavior among as-machined, HA coated and CMP coated groups, each group was implanted into New Zealand white mature male rabbits for 2 and 6 weeks, and then in-vivo biological behavior was examined in terms of H＆E staining. Initial stability and removable torques of implants were compared among three groups. Measured removable torque of CMP coated specimen at 6 weeks after inplantation was significantly higher than that of non-coated group, but slightly lower than that of HA coated group, without any inflammatory response at the surrounding of the implants. The initial stability （ ISQ value ; implant stability quotient ） of CMP coated specimen at 2 weeks after implantation was slightly lower than that of HA coated group and significantly higher than that of non-coated group. However, after 6 weeks, ISQ value of CMP coated group was slightly higher than that of HA coated group and significantly higher than that of non-coated group.

关 键 词：calcium metaphosphate initial stability RFA ISQ value OSSEOINTEGRATION 

分 类 号：TG174.4[金属学及工艺—金属表面处理]