He Jing, Shang Ya-wei, Deng Chun-fu, Shang De-hao, Zhang Chong, Wang Dan-ning, Zhao Bao-hong
Center of Implant Dentistry, School of Stomatology, China Medical University; Laboratory of Implant Dentistry, Liaoning Institute of Dental Research. Shenyang 110002, Liaoning Province, China.E-mail:
Shanghai Kou Qiang Yi Xue. 2014 Apr;23(2):196-200.
To evaluate the clinical outcomes as well as related factors of dental implants replaced in previously failed sites.
A total of 12 patients (15 implants) who received replacement in previously failed sites during January 2005 to December 2011 were included. Outcomes of redo-implants were collected and clinical data was recorded and analyzed regarding risk factors related to redo-implants' survival using SPSS13.0 software package.
The survival rate of redo-implants was 100% [(33.5±15.4) months]. The mean redo-implant diameter (4.5±0.6) mm was significantly larger than the previous one (4.1±0.7) mm (P<0.05). The mean survival time of implants placed for the first time was (12.9±15.9) months. Implant replacement occurred (6.8±4.4) months after original implant removal. No significant influence was observed on patient and implant-related factors as well as surgery and prosthesis-dependent factors.
Reimplantation in previously failed site is considered as one of feasible prosthesis plans, and surgeons ought to get enough confidence to achieve satisfactory implant survival rates. Supported by Liaoning Provincial Natural Science Foundation (20092093), Liaoning Provincial Science and Technology Foundation (2012225090), and Shenyang Science and Technology Foundation (F11-264-1-25, F12-277-1-18).
评估在先前种植失败部位进行牙种植修复的临床效果及相关影响因素。
纳入2005年1月至2011年12月期间在先前种植失败部位接受种植修复的12例患者（共15枚种植体）。收集再次种植体的修复效果，记录临床资料，并使用SPSS13.0软件包分析与再次种植体存留相关的危险因素。
再次种植体的存留率为100%[（33.5±15.4）个月]。再次种植体的平均直径（4.5±0.6）mm显著大于先前种植体（4.1±0.7）mm（P<0.05）。首次种植体的平均存留时间为（12.9±15.9）个月。再次种植在原种植体拔除后（6.8±4.4）个月进行。未观察到患者、种植体相关因素以及手术和修复相关因素产生显著影响。
在先前种植失败部位再次种植被认为是可行的修复方案之一，外科医生应具备足够信心以获得满意的种植体存留率。本研究受辽宁省自然科学基金（20092093）、辽宁省科技基金（2012225090）及沈阳市科技基金（F11 - 264 - 1 - 25，F12 - 277 - 1 - 18）资助。
