Almohareb Rahaf, Ahlquist Michael, Englund Gunilla Sandborgh
Swed Dent J. 2016;40(2):133-142.
The aim of the study was to evaluate the technical quality of endodontic treatment per- formed by postgraduate students in Karolinska Institutet, Stockholm, Sweden during the years (2008-2011) and to evaluate the treatment outcome. In addition, possible influencing factors to treatment outcome were analyzed. All maxillary first molars that received endo- dontic treatment between 2008 and 2011 were included in the study. Pre, post and follow up radiographs were collected.The apical status (PAI-score),the quality of the root canal treat- ment (RCT) and the treatment outcome were assessed. Analysis of the treatment outcome in relation to the quality of root canal treatment and other possible influencing variables was performed by Chi2 or Fisher's Exact test, and the statistical significance was set at P<0.05. A total of 73 teeth were included in the study. Out of these, sixty-three teeth (86,3 %) had periapical lesions at the time for RCT. An initial root canal treatment was performed in 46 teeth (63 %) and 27 teeth (37 %) were retreated.There was no significant as- sociation between the outcome and the type of treatment.The majority of the RCT's (58 %) had good seal and correct length. In total, the treatment outcome was successful in 59 (81 %) of the cases. The success rate was 88% in cases with high quality root fillings, compared to 71% in cases with less good quality.There was a non- significant trend (P =0.066) of an association between RCT quality and treatment outcome. In conclusion the association between the quality of the root filling and the treatment outcome was not verified with statistical significance, but the results indicate a trend that satisfactory root fillings are associated with a favorable outcome.This study was limited by its retrospective nature and a relatively small sample size.
本研究的目的是评估瑞典斯德哥尔摩卡罗林斯卡学院的研究生在2008年至2011年期间进行的牙髓治疗的技术质量，并评估治疗结果。此外，分析了可能影响治疗结果的因素。2008年至2011年期间接受牙髓治疗的所有上颌第一磨牙均纳入本研究。收集术前、术后及随访的X光片。评估根尖状态（PAI评分）、根管治疗（RCT）质量和治疗结果。通过卡方检验或费舍尔精确检验分析治疗结果与根管治疗质量及其他可能影响变量的关系，统计学显著性设定为P<0.05。本研究共纳入73颗牙齿。其中，63颗牙齿（86.3%）在进行根管治疗时存在根尖周病变。46颗牙齿（63%）进行了初次根管治疗，27颗牙齿（37%）进行了再治疗。治疗结果与治疗类型之间无显著关联。大多数根管治疗（58%）密封良好且长度正确。总体而言，59例（81%）治疗成功。高质量根管充填病例的成功率为88%，相比之下，质量较差病例的成功率为71%。根管治疗质量与治疗结果之间存在无统计学显著性的趋势（P =0.066）。总之，根管充填质量与治疗结果之间的关联未得到统计学显著性验证，但结果表明存在一种趋势，即满意的根管充填与良好的治疗结果相关。本研究受其回顾性性质和相对较小样本量的限制。
