目的 探讨在口腔医学专业二年级学员中开展口外镜像操作技能训练的教学效果。方法 采用纵向研究方法,选取第四军医大学2019级五年制口腔医学专业二年级40名学员为研究对象,在二年级秋季学期口腔诊疗基础课程中,使用改良的镜像操作训练装置进行口外镜像操作训练,单因素方差分析比较不同练习次数之间学员错误位点数和水平线角度之间的差异。通过问卷了解口外镜像操作技能训练对口内操作的影响。结果 学员在第一次、第二次、第三次、第四次、第五次练习时错误位点数分别为(9.60±3.39)个,(7.75±2.97)个,(6.28±2.44)个,(5.63±2.55)个,(3.18±2.63)个,水平线角度分别为(3.63±3.71)度,(2.11±3.11)度,(1.96±3.58)度,(1.63±3.11)度,(1.33±1.40)度。问卷调查结果显示,95.0%(38/40)的学员认为进行口外镜像操作技能训练对口内操作具有很大帮助。结论 口外镜像操作技能训练可以在短时间内提高口腔医学专业学员口外镜像技能,且训练效果可以持续一定的时间。

Objectives To evaluate the effect of extra-oral mirror-inverted operation training using the mirror operating device among the second-year students of stomatology. Methods Longitudinal study was adopted in this study. A total of 40 students majoring in 2019 five-year stomatology program from the Fourth Military Medical University were included. Participants used the improved mirror operation training device to conduct extraoral mirror operation training. The number of error positions and horizontal line angles of the students between different exercise times were recorded. One-way ANOVA was used to compare the difference between the number of error sites and the angle of the horizontal line of the trainees between different exercise times, and the questionnaire was used to collect the trainee's feelings about the impact of the extra-oral mirror operation skill training on the intra-oral operation. Results The error points in five different exercises were [(9.60±3.39), (7.75±2.97), (6.28±2.44), (5.63±2.55), (3.18±2.63)], and the horizontal line angles were [(3.63±3.71), (2.11±3.11), (1.96±3.58), (1.63±3.11), (1.33±1.40)], respectively. It was found that the number of error points and horizontal angle decreased significantly with the increase of practice times. The results of the questionnaire showed that 95.0%(38/40) of the students considered that mirror-inverted operation training was very helpful for intraoral operation. Conclusions Students' extra-oral mirror operation skills could be improved in short time. And the skills could be maintained during a period of time.