College of Dental Medicine, QU Health, Qatar University, Doha, Qatar.
Prosthetic Dentistry Department, Division of Biomaterials, Faculty of Dentistry, King Salman International University, El Tur, South Sinai, Egypt.
PeerJ. 2022 Aug 4;10:e13858. doi: 10.7717/peerj.13858. eCollection 2022.
The aim of this study was to compare the occurrence of instrumentation and obturation related endodontic procedural mishaps following the use of either, stainless steel hand or engine-driven rotary instrumentation techniques.
From a computerized hospital database, a total of 730 dental patient records who had received endodontic treatment by undergraduate dental students between August 2018 to September 2020 were retrieved. The inclusion criteria were primary (non-surgical) endodontic treatment on permanent teeth with complete radiographic records. Following record screening, a final sample of = 475 dental records were included. Radiographic records were evaluated for both instrumentation and obturation related mishaps. The data was analysed using multiple logistic regression analysis ( = 0.05).
Engine-driven rotary instrumentation resulted in a significant decrease in the overall occurrence of instrumentation related endodontic mishaps by 40% compared to hand instrumentation (Odds Ratio = 0.59 [0.36-0.97], = 0.04). In particular, rotary instrumentation decreased ledge formation, perforation and obturation related mishaps, with minimal effect on the limitation of zipping.
The use of rotary instrumentation techniques may reduce the incidence of instrumentation and obturation endodontic mishaps in the undergraduate dental clinic.
本研究旨在比较使用不锈钢手用或机用旋转器械技术时，器械和根管充填相关根管治疗术操作并发症的发生情况。
从计算机化的医院数据库中，检索了 2018 年 8 月至 2020 年 9 月期间本科实习医生进行根管治疗的 730 名牙科患者的记录。纳入标准为恒牙进行的初次（非手术）根管治疗，且具有完整的放射影像学记录。经过记录筛选，最终纳入了 475 份牙科记录。对器械和根管充填相关并发症的影像学记录进行评估。使用多因素逻辑回归分析（ = 0.05）进行数据分析。
与手用器械相比，机用旋转器械可显著降低器械相关根管治疗术操作并发症的总体发生率，降低 40%（比值比=0.59[0.36-0.97]， = 0.04）。特别是旋转器械降低了肩台形成、穿孔和根管充填相关并发症的发生率，对拉链效应的限制影响最小。
在本科牙科临床中使用旋转器械技术可能会降低器械和根管充填相关根管治疗术操作并发症的发生率。
