Bell Christopher Lincoln, Diehl David, Bell Brian Michael, Bell Robert E
Brigham Young University, Provo, UT, USA.
J Oral Maxillofac Surg. 2011 Jun;69(6):1623-7. doi: 10.1016/j.joms.2011.01.022. Epub 2011 Apr 15.
The purpose of this study was to evaluate the success of dental implants placed immediately into extraction sites in the presence of chronic periapical pathology.
The charts of 655 patients who had implants immediately placed into fresh extraction sites were reviewed for the presence or absence of periapical radiolucencies. A total of 922 implants were included. Of the 922 implants, 285 were immediately placed into sockets that had chronic periapical infections. The remaining 637 implants, without signs of periapical pathology, were used as the control group. Success of the implants was defined as successful osseointegration, successful restoration, and absence of evidence of bone loss or peri-implantitis. Other variables such as age, gender, smoking, diabetes, bisphosphonate use, lucencies of adjacent teeth, and implant stability at the time of placement were also evaluated.
Of the 922 implants, 285 were placed into sockets with periapical radiolucencies. The success rate of implants placed in the study group was 97.5%, whereas the success rate of the control group was 98.7%. The difference was not found to be statistically significant. The mean follow-up was 19.75 months, with a maximum of 93 months and a minimum of 3 months. A statistically higher failure rate was found for implants placed adjacent to retained teeth with periapical pathology.
The placement of implants in sockets affected by chronic periapical pathology can be considered a safe and viable treatment option. There is a risk of implant failure when placing implants adjacent to teeth with periapical radiolucencies.
本研究的目的是评估在存在慢性根尖周病变的情况下，即刻植入拔牙位点的牙种植体的成功率。
回顾了655例即刻将种植体植入新鲜拔牙位点患者的病历，以确定是否存在根尖周透射影。共纳入922枚种植体。在这922枚种植体中，285枚即刻植入存在慢性根尖周感染的牙槽窝。其余637枚无根尖周病变迹象的种植体作为对照组。种植体成功的定义为成功的骨结合、成功的修复，且无骨吸收或种植体周围炎的证据。还评估了其他变量，如年龄、性别、吸烟、糖尿病、双膦酸盐的使用、邻牙的透射影以及植入时的种植体稳定性。
在922枚种植体中，285枚植入有根尖周透射影的牙槽窝。研究组种植体的成功率为97.5%，而对照组的成功率为98.7%。未发现差异具有统计学意义。平均随访时间为19.75个月，最长93个月，最短3个月。发现与有根尖周病变的存留牙相邻植入的种植体失败率在统计学上更高。
在受慢性根尖周病变影响的牙槽窝中植入种植体可被视为一种安全可行的治疗选择。在有根尖周透射影的牙齿相邻处植入种植体存在种植体失败的风险。
