目的 探讨三维虚拟仿真牙周病患者病例库在牙周病学前期教学中的应用效果。方法 选择即将进入牙周病学临床实习的北京大学2018级八年制口腔医学专业30名学生作为研究对象,采用随机数字表法将其分为试验组和对照组,每组15名学生。试验组学生接受三维虚拟仿真牙周病患者病例库教学,对照组学生接受传统教学,并在考核前熟悉该病例库。培训结束后,利用该病例库对两组学生进行临床接诊能力考核,并由系统进行评分;学生接受考核后通过问卷调查收集其对该病例库的评价。采用t检验比较两组学生评分之间差异。结果 试验组学生病史采集评分[(52.67±16.24)分],高于对照组学生的[(36.80±10.84)分],其差异具有统计学意义(t=3.15, P=0.004)。问卷调查结果显示,试验组和对照组的15名学生中,所有学生都完全同意或同意该病例库能够提升牙周临床接诊能力和接诊信心。结论 三维虚拟仿真牙周病患者病例库有助于提高口腔医学专业学生的牙周病临床接诊能力,并且得到了学生的广泛认可,可以在前期实习中进一步推广应用。

Objective To explore the application of a case database of 3D virtual simulation patients with typical periodontal diseases in pre-clinical periodontal education. Methods Thirty stomatological students from Peking University, enrolled in 2018, who were about to enter the clinical practice of periodontology, were recruited as the research objects. And the students were randomly divided into the control group and the study group, 15 in each group. The study group received training using the case database of 3D virtual simulation patients with typical periodontal diseases, while the control group received traditional teaching. After the training, the two groups were assessed on their clinical skills using the case database, and were scored by the system. The students were asked to fill in the feedback questionnaire to evaluate the case database. The t-test was used to compare the differences between the two groups. Results The mean score of history collection of the study group [(52.67±16.24) points] was higher than the control group [(36.80±10.84) points], and the difference was statistically significant (t=3.15, P=0.004). The results of the questionnaire show that all students fully agree or agree that this case library can enhance the ability and confidence of periodontal clinical reception. Conclusions The case database of 3D virtual simulation patients with typical periodontal diseases can improve the periodontal clinical consultation ability of stomatological students, and its efficacy was also widely recognized by students. The case database is expected to be further popularized and applied in the pre-clinical education.