Kucuk Meltem, Ratakonda Mohini, Piasecki Lucila
Department of Periodontics & Endodontics, School of Dental Medicine, University at Buffalo, Buffalo, NY; Department of Endodontics, Faculty of Dentistry, Near East University, Mersin, Türkiye.
Department of Periodontics & Endodontics, School of Dental Medicine, University at Buffalo, Buffalo, NY.
J Endod. 2024 Nov;50(11):1634-1641. doi: 10.1016/j.joen.2024.09.004. Epub 2024 Sep 17.
This study investigated the impact of implementing hydraulic condensation (HC) as a second obturation technique in the Endodontic Preclinical course for dental students trained in warm vertical compaction (WVC).
A total of 70 students performed root canal treatment of 2 extracted molars; they performed the HC technique for the first time after a demonstration. The combination of the obturation technique (WVC or HC) and the type of molar (maxillary or mandibular) was randomly assigned, resulting in 4 groups (n = 35). The students answered a questionnaire appraising their learning experience and completed a self-evaluation rubric. Masked instructors graded projects. Data were statistically analyzed (significance set at 5%).
Most of the students (91%) considered learning 2 obturation techniques relevant and considered it difficult to perform the downpack in molars (P < .05). About half of the students (45.7%) responded that HC resulted in fewer errors and disagreed that WVC derives in a more homogeneous obturation; accordingly, 52.9% of the students selected the highest self-grading for HC obturations, while only 38.6% for WVC. No significant difference was found in the distribution of grades attributed by students and instructors (P > .05). Students reported significantly higher levels of confidence for HC and difficulty for WVC (P < .05). No difference was found between the techniques regarding the presence of voids. The presence of multiple errors was more frequent for WVC (P < .05).
The findings indicate a positive learning experience and comparable performance among preclinical dental students in implementing HC as an alternative obturation technique.
本研究调查了在牙髓病临床前课程中，将液压加压（HC）作为第二种充填技术应用于接受热垂直加压（WVC）培训的牙科学生时所产生的影响。
共有70名学生对2颗拔除的磨牙进行根管治疗；在观看演示后，他们首次采用HC技术。充填技术（WVC或HC）与磨牙类型（上颌或下颌）的组合是随机分配的，共形成4组（n = 35）。学生们回答了一份评估其学习体验的问卷，并完成了一份自我评估量表。由不知情的教员对项目进行评分。对数据进行统计学分析（显著性设定为5%）。
大多数学生（91%）认为学习两种充填技术是有意义的，并认为在磨牙中进行向下加压操作困难（P <.05）。约一半的学生（45.7%）回答说，HC导致的误差更少，不同意WVC能使充填更均匀的观点；因此，52.9%的学生对HC充填给予了最高的自我评分，而对WVC充填给予最高自我评分的学生仅为38.6%。学生和教员给出的成绩分布没有显著差异（P >.05）。学生报告称，对HC的信心明显更高，而对WVC的难度感受明显更高（P <.05）。两种技术在孔隙存在方面没有差异。WVC出现多个误差的情况更为频繁（P <.05）。
研究结果表明，牙科临床前学生在将HC作为一种替代充填技术应用时，有积极的学习体验且表现相当。
