Tseng Chuen-Chyi, Pang Iok-Chao, Wen Miin-Jye, Huang Kuo-Ching, Chang Jui-Chung
Dental Department, Chi Mei Medical Center, Tainan, Taiwan.
Implant Dent. 2009 Feb;18(1):67-74. doi: 10.1097/ID.0b013e31818c591d.
International Team for Oral Implantology (ITI) dental implant has been clinically tested for the most parts of the world, especially in Europe and America, and has not been conducted on Asian population. The purpose of this study was to evaluate the cumulative survival and success rates over 7 years of ITI dental implants.
The ITI dental implant system has been used in the Dental Department of Chi Mei Medical Center since August of 1997. At the end of 2005, 717 solid-screw implants had been placed and loaded at least 6 months in 316 patients. The patient population included 145 males and 171 females, with a mean age of 43.18 +/- 11.60 years. The follow-up interval was from 6 months after the prosthesis was completed to 7 years. The success criteria of dental implant survival was based on Buser et al, Clin Oral Implants Res. 1990;1:33-40.
Most implants (486, 67.8%) were placed in the mandible and 231 (32.2%) were placed in the maxilla. Two implants were removed before prostheses fabrication because of postsurgical infections. One implant was removed due to a periapical infection of an adjacent natural tooth. The life table analysis of survival rate and success rate were 99.58% and 96.13%, respectively.
This 7-year clinical effectiveness study demonstrated this dental implant system gave a clinical reliable result in a Taiwanese population.
国际口腔种植学会（ITI）种植体已在世界大部分地区进行了临床试验，尤其是在欧美地区，但尚未在亚洲人群中开展。本研究的目的是评估ITI种植体7年的累积存留率和成功率。
自1997年8月起，奇美医学中心牙科部开始使用ITI种植系统。至2005年底，316例患者共植入717枚实心螺旋种植体，且至少负重6个月。患者包括145名男性和171名女性，平均年龄为43.18±11.60岁。随访时间从义齿完成后6个月至7年。种植体存留的成功标准依据Buser等人发表于《临床口腔种植研究》1990年第1卷第33 - 40页的研究。
多数种植体（486枚，67.8%）植入下颌骨，231枚（32.2%）植入上颌骨。有2枚种植体在制作义齿前因术后感染被取出。1枚种植体因相邻天然牙根尖周感染被取出。存留率和成功率的生命表分析结果分别为99.58%和96.13%。
这项为期7年的临床疗效研究表明，该种植系统在台湾人群中取得了可靠的临床效果。
