3D打印供牙模型在自体牙移植术教学中的问卷调查分析

The analysis of questionnaires about the application of 3D printed replica of the donor tooth in the teaching of tooth autotransplantation

目的探讨不同教学方法及3D打印供牙模型在自体牙移植术教学中的应用效果。方法2017—2018年度,第四军医大学口腔医院举办的自体牙移植术学习班主要采取理论知识讲解的教学方法,2019年度,学习班增加利用3D打印供牙模型辅助在石膏模型上预备牙槽窝的模拟操作和临床示教等方法。通过自制学习班教学相关的调查问卷,获取2017—2018、2019年度参加学习班的学员对不同教学方法及3D打印供牙模型在自体牙移植术教学中应用的反馈,并采用Mann-Whitney U检验对反馈结果进行对比分析。结果相较于2017—2018年度[16名(51.6%)],2019年度有24名(80.0%)学员认为3D打印供牙牙模型对于术后的根管治疗有所帮助(Z=-2.782,P=0.005);2017—2018年度仍有5名(14.3%)学员认为因术前CBCT检查造成患者接受的电离辐射增加,2019年度所有学员都认可术前使用锥形束CT(CBCT)检查(Z=-2.202,P=0.028)。结论2019年度增加利用3D打印供牙模型辅助在石膏模型上预备牙槽窝的模拟操作和临床示教等方法有助于学员对3D打印供牙模型在自体牙移植术中应用的理解和使用。

Objective To investigate the role of different teaching methods and the 3D printed replica of the donor tooth in the teaching of tooth autotransplantation.Methods The continuing medical education of tooth autotransplantation in 2017-2018 mainly restricted to the theory,including the knowledge and production process of the 3D printed replica and the case reports about tooth autotransplantation.Instead,in 2019,the students taking the same training can prepare an alveolar socket on a plaster model with the assistance of a 3D printed replica and watch the surgery of autotransplantation.The self-made questionnaires were filled out by the students who had participated in the continuing medical education class in 2017-2018 and 2019,from which we would obtain the feedbacks on the effect of different teaching methods and the 3D printed replica of the donor tooth in the teaching of tooth autotransplantation.All the data from the questionnaires were analyzed with Mann-Whitney U test.Results Compared with 16 students(51.6%)in 2017-2018,24 students(80.0%)in 2019 believed that the 3D printed replica of the donor tooth was helpful for postoperative root canal treatment(Z=-2.782,P=0.005).In 2017-2018,5 students(14.3%)believed that patients received excessive ionizing radiation due to the preoperative CBCT examination.In contrast,all students in 2019 agreed on the use of the preoperative CBCT examination(Z=-2.202,P=0.028).Conclusion The teaching method of the continuing clinical teaching in 2019 was helpful for students to master the application of a 3D printed replica of the donor tooth in the tooth autotransplantation.