Chatzopoulos Georgios S, Wolff Larry F
DDS, Advanced Education Program in Periodontology, Department of Developmental and Surgical Sciences, School of Dentistry, University of Minnesota, 515 Delaware St. SE, Minneapolis, MN 55455.
MS, PhD, DDS, Professor, Division of Periodontology, Department of Developmental and Surgical Sciences, School of Dentistry, University of Minnesota, 515 Delaware St. SE, Minneapolis, MN 55455.
J Clin Exp Dent. 2017 Nov 1;9(11):e1322-e1328. doi: 10.4317/jced.54277. eCollection 2017 Nov.
Residual bacterial biofilm and/or bacteria in planktonic form may be survived in the bone following an extraction of an infected tooth that was endodontically treated unsuccessfully Failed endodontic treatment may be associated with failure of implants to osseointegrate in the same sites. Therefore, the aim of this retrospective case-control study is to examine the risk of implant failure in previous failed endodontic sites.
This retrospective case-control study is based on 94 dental records of implants placed at the University of Minnesota School of Dentistry. Dental records of patients who received an implant in sites with previously failed endodontic therapy in the dental school were identified from the electronic database, while control subjects were obtained from the same pool of patients with the requirement to have received an implant in a site that was not endodontically treated.
The mean age of the population was 62.89±14.17 years with 57.4% of the sample being females and 42.6% of them being males. In regards to the socio-economic status and dental insurance, 84.0% of this population was classified as low socio-economic status and 68.1% had dental insurance. Tobacco use was self-reported by 9.6% and hypercholesterolemia was the most prevalent systemic medical condition. Dental implant failure was identified in two of the included records (2.1%), both of which were placed in sites with a history of failed endodontic treatment.
Within the limitations of this retrospective case-control study, further investigation with a larger population group into implant failure of sites that previously had unsuccessful endodontic treatment would be warranted. Implant failure may be associated with a history of failed endodontic treatment. Implantology, endodontics, osseointegration, treatment outcome, case-control study.
在对感染牙齿进行根管治疗失败后拔牙，骨组织中可能会残留细菌生物膜和/或浮游形式的细菌。根管治疗失败可能与在同一部位种植体骨结合失败有关。因此，本回顾性病例对照研究的目的是检查既往根管治疗失败部位种植体失败的风险。
本回顾性病例对照研究基于明尼苏达大学牙科学院94份种植体植入的牙科记录。从电子数据库中识别出在牙科学院既往根管治疗失败部位接受种植体植入的患者的牙科记录，而对照组则从同一组患者中选取，要求其种植体植入部位未接受过根管治疗。
研究人群的平均年龄为62.89±14.17岁，样本中57.4%为女性，42.6%为男性。在社会经济地位和牙科保险方面，该人群中84.0%被归类为社会经济地位较低，68.1%拥有牙科保险。9.6%的患者自述有吸烟习惯，高胆固醇血症是最常见的全身性疾病。在所纳入的记录中有两份（2.1%）出现了牙种植体失败，且均位于有根管治疗失败史的部位。
在本回顾性病例对照研究的局限性范围内，有必要对更大人群进行进一步调查，以研究既往根管治疗失败部位的种植体失败情况。种植体失败可能与根管治疗失败史有关。种植学、牙髓病学、骨结合、治疗结果、病例对照研究。
