METHODS: Patients with at least one endodontically treated tooth (ETT), with 5 years of follow-up and in compliance with the recall programme of at least 1 time per year in a private practice setting, were recruited. Kaplan-Meier survival analyses were performed considering (a) tooth extraction/survival and (b) endodontic success as the outcome variables. A regression analysis was performed to evaluate prognostic factors associated with tooth survival.
RESULTS: Three hundred twelve patients and 598 teeth were included. The cumulative survival rates showed 97%, 81%, 76% and 68% after 10, 20, 30 and 37 years, respectively. The corresponding values for endodontic success were 93%, 85%, 81% and 81%, respectively.
CONCLUSIONS: The study demonstrated high longevity in symptomless function as well as high success rates of ETT. The most significant prognostic factors associated with tooth extraction were the presence of deep (> 6 mm) periodontal pockets, the presence of pre-operative apical radiolucency and the lack of occlusal protection (no use of a night guard).
CONCLUSIONS: The favourable long-term (> 30 years) prognosis of ETT must encourage clinicians to rely on primary root canal treatment when taking the decision regarding whether a tooth with pulpal and/or periapical diseases should be saved or be extracted and replaced with an implant.
方法:患有至少一颗牙髓治疗牙齿(ETT)的患者,经过5年的随访,并在私人执业环境中遵守每年至少1次的召回计划,被招募。考虑到(a)拔牙/存活率和(b)牙髓成功作为结果变量,进行了Kaplan-Meier生存分析。进行回归分析以评估与牙齿存活相关的预后因素。
结果:纳入了112例患者和598颗牙齿。累计生存率为97%,81%,76%和68%在10年、20年、30年和37年后,分别。牙髓成功的相应值为93%,85%,81%和81%,分别。
结论:该研究证明了无症状功能的高寿命以及ETT的高成功率。与拔牙相关的最重要的预后因素是存在深(>6mm)牙周袋,术前心尖射线不透性的存在和缺乏咬合保护(不使用夜间警卫)。
结论:ETT的良好的长期(>30年)预后必须鼓励临床医生在决定是否应保存牙髓和/或根尖周病的牙齿时,依靠初级根管治疗。