Gilbert Gregg H, Tilashalski Ken R, Litaker Mark S, McNeal Sandre F, Boykin Michael J, Kessler Allen W
Department of General Dental Sciences, School of Dentistry, University of Alabama at Birmingham, USA.
Tex Dent J. 2013 Apr;130(4):351-9.
This study sought to quantify the incidence of root canal treatment (RCT) failure and identify its predictors in root canals that were performed or referred by general dentistry practices in a practice-based research network (PBRN). This retrospective cohort study involved 174 endodontically treated teeth. Mean duration from initial therapy to follow-up was 8.6 years. Permanent restorations were ultimately placed in 89% of teeth, although 18% of teeth were ultimately extracted anyway. Receiving a permanent restoration was a significant predictor of treatment failure (in other words, patients who did not receive a permanent restoration were more likely to experience RCT failure), whether failure was determined clinically or radiographically. This study of PBRN practices suggests a higher failure rate compared with studies that utilized highly controlled environments or populations with high levels of dental insurance.
本研究旨在量化根管治疗（RCT）失败的发生率，并在基于实践的研究网络（PBRN）中由普通牙科诊所进行或转诊的根管中确定其预测因素。这项回顾性队列研究涉及174颗接受牙髓治疗的牙齿。从初始治疗到随访的平均时间为8.6年。最终89%的牙齿进行了永久性修复，尽管无论如何最终仍有18%的牙齿被拔除。接受永久性修复是治疗失败的一个重要预测因素（换句话说，未接受永久性修复的患者更有可能经历根管治疗失败），无论失败是通过临床还是影像学确定的。与利用高度受控环境或高牙科保险水平人群的研究相比，这项对PBRN诊所的研究表明失败率更高。
