Madfa Ahmed A, Almansour Moazzy I, Al-Zubaidi Saad M, Albaqawi Ahmed H, Almeshari Saleh A, Khawshhal Anas A, Alshammari Rehab H
Department of Restorative Dental Science, College of Dentistry, University of Ha'il, Kingdom of Saudi Arabia, Ha'il, Kingdom of Saudi Arabia.
BMC Med Educ. 2024 Feb 19;24(1):157. doi: 10.1186/s12909-024-05136-4.
The educational process in the field of endodontics commences with preclinical exercises to enhance students' proficiency in cleaning, shaping, and performing root canal fillings. Therefore, this study aimed to radiographically evaluate the technical quality of root canal fillings performed by preclinical students on extracted teeth at the College of Dentistry, University of Ha'il, Saudi Arabia.
A total of 788 extracted human teeth received root canal treatment by undergraduate students. The samples were then gathered and radiographically assessed using the three quality criteria of length, density, and taper. The category of root canal fillings was classified as either acceptable or unacceptable. The criteria for evaluating the acceptability of filling quality were defined based on the presence of adequate length, density, and taper. The effectiveness of root canal fillings was also evaluated in relation to the tooth type, sex, and treatment year. The agreement between the examiners was evaluated using Cohen's kappa test, and the relationship between the research variables was determined using the chi-squared test. The significance threshold was set at 0. 05.
The overall quality of root filling was determined to be satisfactory in 532 (67.5%) of 788 endodontically treated extracted teeth. The majority of the research sample (88.1%) had enough length, 89.6% had adequate density, and 86.4% had acceptable taper. The quality of anterior teeth was substantially better than that of posterior teeth (p < 0.001). Our findings showed that the quality of root canals was better in 2022 than it had been in earlier years (p = 0.001). The three RCT quality criteria differed significantly when compared between sexes (p = 0.002).
The quality of the root canal fillings completed by undergraduate students was rated as acceptable. The findings of the research suggest that the implementation of routine assessments to evaluate the technical competence of undergraduate dental students performing root canal treatments could provide significant insights into the efficacy of the curriculum requirements.
牙髓病学领域的教育过程始于临床前练习，以提高学生在根管清理、塑形和根管充填方面的熟练程度。因此，本研究旨在通过影像学评估沙特阿拉伯哈伊勒大学牙科学院临床前学生对拔除牙进行根管充填的技术质量。
共有788颗拔除的人牙接受了本科生的根管治疗。然后收集样本，并根据长度、密度和锥度这三个质量标准进行影像学评估。根管充填类别分为可接受或不可接受。基于是否存在足够的长度、密度和锥度来定义评估充填质量可接受性的标准。还根据牙齿类型、性别和治疗年份评估根管充填的有效性。使用科恩kappa检验评估检查者之间的一致性，并使用卡方检验确定研究变量之间的关系。显著性阈值设定为0.05。
在788颗接受根管治疗的拔除牙中，532颗（67.5%）的根管充填总体质量被判定为满意。大多数研究样本（88.1%）有足够的长度，89.6%有足够的密度，86.4%有可接受的锥度。前牙的质量明显优于后牙（p < 0.001）。我们的研究结果表明，2022年根管的质量比前几年更好（p = 0.001）。在性别之间比较时，三个根管治疗质量标准存在显著差异（p = 0.002）。
本科生完成的根管充填质量被评定为可接受。研究结果表明，实施常规评估以评价进行根管治疗的本科牙科学生的技术能力，可为课程要求的有效性提供重要见解。
