三维可视化阻生牙拔牙模型在口腔本科实验教学中的应用  

Application of three-dimensional visualized model of impacted tooth for surgical extraction in undergraduate oral experimental teaching

作　　者：张雪明[1] 王艳艳 史翠平[2] 陈袁伟 康非吾[1] Zhang Xueming;Wang Yanyan;Shi Cuiping;Chen Yuanwei;Kang Feiwu(Department of Oral and Maxillofacial Surgery,Stomatological Hospital and Dental School of Tongji University,Shanghai Engineering Research Center of Tooth Restoration and Regeneration,Shanghai 200072,China;Department of Dental Laboratory Center,Stomatological Hospital and Dental School of Tongji University,Shanghai Engineering Research Center of Tooth Restoration and Regeneration,Shanghai 200072,China)

机构地区：[1]同济大学口腔医学院·附属口腔医院口腔颌面外科教研室,上海牙组织修复与再生工程技术研究中心,上海200072 [2]同济大学口腔医学院·附属口腔医院技工中心,上海牙组织修复与再生工程技术研究中心,上海200072

出　　处：《中华口腔医学杂志》2022年第8期855-860,共6页Chinese Journal of Stomatology

基　　金：同济大学实验教学改革专项基金项目(1504104059)。

摘　　要：目的评价自行研发的三维可视化阻生牙拔牙模型在口腔本科实验教学中的应用价值。方法纳入同济大学2018级口腔医学专业41名本科生,其中男性19名,女性22名,年龄(22.4±0.8)岁,采用单纯随机分组法将41名学生分为传统组和试验组,传统组(21名,男性8名,女性13名)采用理论讲授、观看操作视频、在仿真头模上进行阻生牙拔除的操作;试验组(20名,男性11名,女性9名)在仿真头模上进行拔牙操作之前,增加利用三维可视化阻生牙拔牙模型进行阻力分析和模拟拔牙的训练环节。课后对学生开展问卷调查,并由教师对其在仿真头模上的操作结果进行评价。结果问卷调查结果显示,试验组学生在能够想象阻生牙与毗邻结构关系(U=114.00,P=0.006)、拔牙过程中避免损伤邻牙(U=87.00,P<0.001)及下牙槽神经(U=111.50,P=0.006)、对今后的临床操作更有信心(U=120.00,P=0.013)等条目上的评分均显著高于传统组。在仿真头模上拔牙的评价结果显示,两组操作时长的差异无统计学意义(U=138.50,P=0.056)。试验组中造成邻牙松动者占5%(1/20),造成过大骨缺损者占15%(3/20),均显著小于传统组[分别为38%(8/21)和48%(10/21)](P=0.021;P=0.043)。两组磨除阻生牙深面骨质的发生率差异无统计学意义(P=0.232)。结论三维可视化阻生牙拔牙模型应用于口腔本科生实验教学的效果良好,值得推广。Objective To evaluate the effect of the application of a self-developed three-dimensional visualized model of impacted tooth for surgical extraction in undergraduate oral experimental teaching.Methods Forty-one undergraduates majoring stomatology of Tongji University from 2018[19 males and 22 females,aged(22.4±0.8)years]were enrolled and randomly divided into the conventional group and the experimental group.Students of the conventional group(21 students including 8 males and 13 females)received a teaching protocol for the surgical extraction of impacted tooth including theoretical lectures,watching operation videos,and operating on head-simulator teaching systems.Students of the experimental group(20 students including 11 males and 9 females)received an additional training of resistance assessment and surgical extraction using the three-dimensional visualized model of impacted tooth before operating on the head simulators.After class,a questionnaire survey was carried out among students,and the operation results on the head simulators were evaluated by the teacher.Results The results of the questionnaire showed that the students in the experimental group were rated higher than those in the traditional group in terms of being able to imagine the relationship between impacted teeth and adjacent structures(U=114.00,P=0.006),avoiding damage to adjacent teeth(U=87.00,P<0.001)and inferior alveolar nerve during tooth extraction(U=111.50,P=0.006),and being more confident in clinical operations in the future(U=120.00,P=0.013).According to the evaluation results of tooth extraction on the head simulators,there was no significant difference in the operation time between the two groups(U=138.50,P=0.056).In the experimental group,5%(1/20)caused adjacent tooth loosening and 15%(3/20)caused the excessive bone defect,which was less than those in the traditional group[38%(8/21)and 48%(10/21),respectively](P=0.021;P=0.043).There was no significant difference in the incidence of grinding out the deep bone of impacted teeth betwee

关 键 词：教学 口腔实验教学 三维打印 牙 阻生 拔牙 

分 类 号：R-4[医药卫生] G642.423[文化科学—高等教育学]