目的：使用口腔常用材料制作可反复使用的下颌阻生智齿拔除仿头模模型，并将其应用于临床前教学。方法：根据口腔常用材料特点、下颌阻生智齿的解剖特点及拔除的技术特点，设计并制作可反复使用的下颌阻生智齿拔除模型；将该模型固定于仿头模内，由口腔颌面外科临床医师及实习学生试用，采用问卷调查的方法对使用效果进行评估。结果：成功设计并制作出了下颌阻生智齿拔除模型；问卷调查结果显示该仿头模模型很好的模拟了临床下颌阻生智齿的拔除。结论：使用口腔常用材料可以成功的制作出下颌阻生智齿拔除模型，有助于临床实际操作。%Objective:To establish a model of mandibular impact third molar extraction with common dental materials for pre-clinical trai-ning.Methods:Based on the characteristics of the common dental materials,the anatomy and extraction skill of mandibular impact third molar,the dental model for mandibular impact third molar extraction was designed and made.Then,this dental model was placed in the head-simulation model as required,and used by the dentists and the students.The questionnaire was designed and used to evalu-ate the effects of the model.Results:A new method of designing and making a dental model for mandibular impact third molar extraction with the common dental materials was established successfully.The questionnaire results showed that all the dentists and students agreed that this model could simulate the mandibular third molar extraction procedure.Conclusion:Simulation model of the mandibular third molar extraction can help students for the following clinical practice.
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