虚拟与仿真技术在下颌阻生牙拔除术实验教学中的应用

目的: 利用虚拟仿真技术构建下颌阻生牙拔除实验教学模式,探讨其与传统拔牙法教学的差异。方法: 随机抽取 80 名本科口腔医学生,随机分为实验组和对照组,每组40人。对照组接受传统阻生牙拔除术实验教学,实验组接受利用虚拟仿真技术构建的微创阻生牙拔除实验教学,通过各项指标测评学生对阻生牙拔除术的掌握程度、阻生牙拔除术后并发症的理解程度。采用 SPSS 11.0软件包对数据进行统计学处理。结果: 实验组理论测试成绩显著高于对照组（P<0.05）。实验组较对照组学生对阻生牙拔除术的掌握更全面,实验中更注意保护周围邻近组织,尤其是对术后并发症的理解更透彻。结论: 利用虚拟模型外科引导微创阻生牙拔除的实验教学方法,可增强口腔医学生对阻生牙拔除术的理解,有利于提高教学质量。

Application of virtual,simulation technology in experimental teaching of mandibular impacted tooth extraction

PURPOSE: To construct the experimental teaching mode of mandibular impacted tooth extraction by virtual simulation technology, and discuss the difference between the novel teaching mode and traditional impacted tooth extraction method. METHODS: Eighty students were randomly divided into experimental group and control group, with 40 students in each group. The control group received traditional experimental teaching method for impacted tooth extraction, while the experimental group received experimental teaching method for minimally invasive impacted tooth extraction constructed by virtual simulation technology. The students' mastery of impacted tooth extraction and understanding of complications after impacted tooth extraction were measured through various indexes. SPSS 11.0 software package was used for data analysis. RESULTS: The didactic test score of experimental group was significantly higher than that of the control group(P<0.05). Students in the experimental group had a more comprehensive grasp of the extraction of impacted teeth than the control group, and the surrounding tissues were better protected in the experiment group, especially the postoperative complications were more thoroughly understood. CONCLUSIONS: The laboratory teaching method of surgically guided minimally invasive impacted teeth extraction using virtual model can enhance the understanding of dental students on impacted teeth extraction, which is beneficial to improve the quality of teaching.