Private practice, Dallas, TX, USA.
Int J Oral Maxillofac Implants. 2013 Jan-Feb;28(1):261-9. doi: 10.11607/jomi.2678.
To evaluate the success and survival of immediately placed tapered implants to support fixed restorations in the maxilla and mandible.
The study was a prospective, multicenter, non-interventional study of patients requiring tooth extraction who requested an implant-supported restoration in the maxilla or mandible. Patients received at least one tapered implant (either immediately after tooth extraction or at a later time point). Abutments were placed 42 to 56 days after surgery, and prostheses were placed after a further 14 days. Treatment and implant success were the primary effectiveness criteria, and secondary parameters included radiographic bone loss, patient satisfaction, and gingival health.
A total of 436 patients were enrolled, of whom 376 were included in the safety analysis. Single implants were placed in 77% of patients, two implants in 16%, and three or more implants in the remainder. The cumulative implant survival rates for immediately placed implants were 98.3% after 1 year and 97.7% from 2 to 5 years. Patient satisfaction was good or excellent in most patients and the majority of implants showed no or < 1-mm change in bone level for up to 5 years.
The survival rate of immediately placed tapered implants was comparable to that found in other studies. Immediate implant placement with tapered implants can allow rapid rehabilitation with no adverse impact on implant survival.
评估在上颌和下颌即刻植入锥形种植体以支持固定修复的成功率和存活率。
这是一项在上颌或下颌需要拔牙的患者中进行的前瞻性、多中心、非干预性研究。患者要求植入物支持修复，接受了至少一个锥形种植体（拔牙后即刻或稍后）。基台在手术后 42 至 56 天放置，进一步 14 天后放置修复体。治疗和种植体成功是主要的有效性标准，次要参数包括影像学骨丢失、患者满意度和牙龈健康。
共纳入 436 例患者，其中 376 例纳入安全性分析。77%的患者植入单牙种植体，16%的患者植入双牙种植体，其余患者植入 3 颗或更多种植体。即刻植入种植体的累积种植体 1 年存活率为 98.3%，2 至 5 年存活率为 97.7%。大多数患者对治疗效果满意或非常满意，大多数种植体在 5 年内骨水平无变化或变化<1mm。
即刻植入锥形种植体的存活率与其他研究相似。即刻植入锥形种植体可以快速进行修复，对种植体的存活率没有不良影响。
