Becker Stephan T, Beck-Broichsitter Benedicta E, Rossmann Christian M, Behrens Eleonore, Jochens Arne, Wiltfang Jörg
Department of Oral and Maxillofacial Surgery, Schleswig-Holstein University Hospital, Kiel, Germany.
Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Clin Implant Dent Relat Res. 2016 Jun;18(3):480-8. doi: 10.1111/cid.12334. Epub 2015 Mar 23.
The aim of this study was to evaluate the long-term dental implant survival rates of Straumann dental implants in a university hospital environment over 12 to 23 years.
A total of 388 Straumann dental implants with titanium-sprayed surfaces (TPS) were inserted in 92 patients between 1988 and 1999 in the Department of Oral and Maxillofacial Surgery of the University Hospital Schleswig-Holstein in Kiel, and they were reevaluated with standardized clinical and radiological exams. Kaplan-Meier analyses were performed for individual factors. Cox proportional hazard regression analysis was used to detect the factors influencing long-term implant failure.
The long-term implant survival rate was 88.03% after an observation time of 12.2 to 23.5 years. Cox regression revealed statistically significant influences of the International Team for Implantology (ITI) implantation type (p = .00354) and tobacco smoking (p = .01264) on implant failure. A proportion 82.8% of the patients with implant losses had a medical history of periodontitis. Peri-implantitis was diagnosed in 9.7% of the remaining implants in the long-term survey.
This study emphasized the long-term rehabilitation capabilities of Straumann dental implants in complex cases. The survival rates after several years constitute important information for patients, as well as for clinicians, in deciding about different concepts of tooth replacement. Patient-related and technical factors - determined before implant placement - could help to predict the risk of implant loss.
本研究旨在评估在大学医院环境中，士卓曼种植牙12至23年的长期存留率。
1988年至1999年间，在基尔的石勒苏益格-荷尔斯泰因大学医院口腔颌面外科，92例患者共植入388颗表面钛喷涂（TPS）的士卓曼种植牙，并通过标准化临床和影像学检查进行重新评估。对个体因素进行Kaplan-Meier分析。采用Cox比例风险回归分析来检测影响种植体长期失败的因素。
在12.2至23.5年的观察期后，种植体长期存留率为88.03%。Cox回归显示，国际口腔种植学会（ITI）种植类型（p = 0.00354）和吸烟（p = 0.01264）对种植体失败有统计学上的显著影响。82.8%的种植体丢失患者有牙周炎病史。在长期调查中，9.7%的存留种植体被诊断为种植体周围炎。
本研究强调了士卓曼种植牙在复杂病例中的长期修复能力。数年的存留率为患者和临床医生在决定不同的牙齿替代方案时提供了重要信息。种植前确定的患者相关因素和技术因素有助于预测种植体丢失的风险。
