Pietrzycka Krystyna, Radwanski Mateusz, Hardan Louis, Bourgi Rim, Mancino Davide, Haikel Youssef, Lukomska-Szymanska Monika
Department of Endodontics, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland.
Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon.
Bioengineering (Basel). 2022 Sep 13;9(9):468. doi: 10.3390/bioengineering9090468.
The main goal of root canal treatment (RCT) is to eradicate or essentially diminish the microbial population within the root canal system and to prevent reinfection by a proper chemo-mechanical preparation and hermetic final obturation of the root canal space. The aim of this study was to assess the quality of the root canal filling and the number of visits needed for completing RCT by operators with different experience, including dentistry students (4th and 5th year), general dental practitioners (GDPs), and endodontists. Data from medical records of 798 patients were analyzed, obtaining 900 teeth and 1773 obturated canals according to the inclusion and exclusion criteria. A similar number of teeth was assessed in each group in terms of density and length of root canal filling and number of visits. The larger number of visits and the lower quality of treatment was observed for 4th year students than for other groups (p < 0.05); in contrast, the endodontists needed the lowest number of visits to complete RCT and more often overfilled teeth than other operator groups (p < 0.05). Interestingly, no statistical difference in quality of root canal filling was noted between 5th year students, GPDs and endodontists. The treatment of lower teeth demanded statistically more visits than that of upper teeth (p < 0.05). The results of the study emphasize that most of the root canal filling performed by operators was considered adequate, regardless of tooth type, files used and number of visits.
根管治疗（RCT）的主要目标是根除或基本减少根管系统内的微生物数量，并通过适当的化学机械预备和对根管空间进行严密的最终充填来防止再次感染。本研究的目的是评估不同经验的操作者（包括牙科学生（四年级和五年级）、普通牙科医生（GDPs）和牙髓病医生）进行根管充填的质量以及完成根管治疗所需的就诊次数。根据纳入和排除标准，分析了798例患者的病历数据，共获得900颗牙齿和1773个充填根管。在每组中，对根管充填的密度和长度以及就诊次数评估的牙齿数量相近。与其他组相比，四年级学生的就诊次数更多，治疗质量更低（p<0.05）；相反，牙髓病医生完成根管治疗所需的就诊次数最少，且比其他操作者组更容易出现超充（p<0.05）。有趣的是，五年级学生、普通牙科医生和牙髓病医生在根管充填质量上没有统计学差异。下颌牙齿的治疗在统计学上比上颌牙齿需要更多的就诊次数（p<0.05）。研究结果强调，无论牙齿类型、使用的锉具和就诊次数如何，操作者进行的大多数根管充填都被认为是足够的。
