상,하악 대구치 부위에 식립된 임플란트의 생존율에 대한 후향적 연구
Survival analysis of dental implants in maxillary and mandibular molar regions; A 4~5 year report
장진화, 류경호, 정현주,
소속 상세정보
장진화 ( Jang Jin-Wha ) - 전남대학교 치의학전문대학원 치주과학교실
류경호 ( Ryoo Gyeong-Ho ) - 광주 미르치과병원
정현주 ( Chung Hyun-Ju ) - 전남대학교 치의학전문대학원 치주과학교실
KMID : 0363020070370020165
Abstract
Dental Implants have been proved to be successful prosthetic modality in edentulous patients for 10 years. However, there are few reports on the survival of implant according to location in molar regions. The purpose of this study was to evaluate the years’ cumulative survival rate and the cause of failure of dental implants in different locations for maxillary and mandibular molars. Among the implants placed in molar regions in Gwangju Mir Dental Hospital from Jan. 2001 to Jun. 2002, 473 implants from 166 patients(age range; ) were followed and evaluated retrospectively for the causes of failure. We included 417 implants in 126 periodontally compromised patients, 56 implants in 40 periodontal healthy patients, and 205 maxillary and 268 mandibular molar implants. Implant survival rates by various subject factors, surgical factors, fixture factors, and prosthetic factors at each location were compared using Chi-square test and Kaplan-Meier cumulative survival analysis was done for follow-up(FU) periods. The overall failure rate at 5 years was 1O.2%(subject level) and 5.5%(implant level). The overall survival rates of implants during the FU periods were 94.5% with 91.3% in maxillary first molar, 91.1% in maxillary second molar, 99.2% in mandibular first molar and 94,8% in mandibular second molar regions. The survival rates differed significantly between both jaws and among different implant locations(p<0.05), whereas the survival rates of functionally loaded implants were similar in different locations. The survival rates were not different according to gender, age, previous periodontal status, surgery stage, bone graft type, or the prosthetic type. The overall survival rate was low in dental implant of too wide diameter( mm) and the survival rate was significantly lower for wider implant diameter(p
키워드
Dental implant;Maxilla;Mandible;Molar region;Survival rate
원문 및 링크아웃 정보
등재저널 정보