动物模型在排龈实验课教学中的应用  

Application of animal models in gingival retraction experimental curriculum

作　　者：蔡和[1] 杨曙瑛 曾永香 秦汉[1] 胡杉杉[1] 王剑[2] 

机构地区：[1]四川大学华西口腔医学院,四川成都610041 [2]四川大学华西口腔医院,四川成都610041

出　　处：《上海口腔医学》2016年第1期117-120,共4页Shanghai Journal of Stomatology

基　　金：四川大学实验技术立项资助项目(2013-136)

摘　　要：目的 ：介绍一种有效的排龈教学改良方式,并评价其在口腔修复学实验课程中的应用价值,以期实现高效提高口腔医学生临床排龈水平的最终目标。方法：首先建立猪和乳牛（6个月龄以下）动物模型,22名拥有5年以上修复科临床经验的口腔医师分别在2种动物模型上排龈,使用SPSS19.0软件包对两者牙龈环境的仿真程度进行配对样本t检验,为改良排龈实验课教学提供参考。随后,80名即将参与修复科临床实习但未接受排龈教学的学生随机分为2组。实验组（A组）在接受传统教学（即课堂教学模式）之余,再接受本教学改良方式（利用动物模型进行排龈训练）;而对照组（B组）仅接受传统教学方式。评价所有学生进入实习期后的排龈效果及最终印模质量,采用SPSS19.0软件包对2组学生的排龈结果进行χ^2检验。结果：猪、乳牛2种动物模型与人牙龈环境均有一定相似度,两者仿真度无显著差异（P〉0.05）。进入临床实习后,A组学生的排龈效果及最终印模质量均显著高于B组（P〈0.05）。结论：将动物模型应用到排龈实验课程中,与传统教学模式相比,能够在更大程度上提高学生的排龈技术水平。PURPOSE： To introduce a teaching method for gingival retraction, and evaluate its efficacy for implementation into experimental curricula. METHODS： First, two kinds of animal models using pigs and cows （below 6 months of age） were established. Twenty-two experienced prosthodontists were then asked to apply gingival retraction on each animal model and evaluate the biofidelity of the 2 models＇ dento-gingival environment. The data was analyzed with SPSS19.0 software package for paired t test.Then, eighty pre-internship students were randomly divided into 2 groups. Besides the traditional teaching（lecture-based teaching）, the experimental group （group A） also had access to skill training （using animal models to practice gingival retraction）, while the control group （group B） only used the traditional teaching modality. All students＇ performance in gingival retraction and impression taking were evaluated in their internship. The data was analyzed with SPSS19.0 software package for Chi-square test. RESULTS： Both pig and cow＇s dento-gingival environment were similar to that of human being, and there was no significant difference between the two models＇ biofidelities （P〉0.05）. In addition, both the effect of gingival retraction and the quality of impression in group A were significantly better than those in group B （P〈0.05）. CONCLUSIONS： Compared with the traditional strategy,practising gingival retraction on animal models can offer greater opportunities for skill development,and be implemented for a wider range of aoolieations.

关 键 词：排龈技术 口腔修复学 动物模型 课程改良 口腔医学教育 

分 类 号：R-4[医药卫生] G642.4[文化科学—高等教育学]