School of Stomatology, Stomatology Hospital, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China.
BMC Med Educ. 2022 Mar 2;22(1):138. doi: 10.1186/s12909-022-03189-x.
This study was aimed to evaluate the application of WeChat-based flipped classroom in root canal filling teaching in a preclinical endodontic course.
A two-group comparative study was designed. The pre-class test, on-site quiz, and root canal filling on extracted premolars were performed by students from a lecture-based classroom group (LG, n = 30) and a WeChat-based flipped classroom group (WFG, n = 30). Results of the Pre-class test and on-site quiz were analyzed by independent samples t-test. Post-filling radiographs were taken and evaluated by a specialist in oral radiology who was blinded to grouping. Results of root canal fillings were analyzed by the Pearson chi-square test. Student responses in questionnaires were analyzed by Fisher's exact test.
The students in WFG could get significantly higher scores in the on-site test and make better performances in root canal filling than those in LG. In terms of questionnaires, students from WFG were perceived to be more motivated to learn, better to understand the knowledge, better to improve communication and clinical skills, easier to perform root canal filling but spending more time.
The WeChat-based flipped classroom teaching can have a better effect than lecture-based teaching on root canal filling learning for students with limited endodontic experiences.
本研究旨在评估基于微信的翻转课堂在口腔牙髓病学临床前课程根管充填教学中的应用。
采用两组对比研究设计。在以授课为基础的课堂组（LG，n=30）和基于微信的翻转课堂组（WFG，n=30）中，学生进行课前测试、现场测验和离体前磨牙根管充填。通过独立样本 t 检验分析课前测试和现场测验的结果。由一位对分组情况不知情的口腔放射学专家拍摄和评估根管充填后的 X 光片。根管充填的结果通过皮尔逊卡方检验进行分析。通过 Fisher 确切概率检验分析学生对问卷调查的回答。
WFG 组学生在现场测验中得分显著更高，根管充填操作也优于 LG 组。在问卷调查方面，WFG 组的学生被认为学习积极性更高，对知识的理解更好，沟通和临床技能的提升更好，根管充填操作更容易，但花费的时间也更多。
对于牙髓病学经验有限的学生，基于微信的翻转课堂教学在根管充填学习方面的效果优于传统授课式教学。
