义齿石膏模型是由口腔印模灌制而成的 ,模型表面有唾液或血液污染 ,对医务人员及技工可能造成危害 ,也可能成为医院交叉感染的来源[1] ,我们采用 2 %碘伏喷雾的方法消毒石膏模型取得良好的效果。材料和方法1 方法　对我科门诊病人的 38件石膏模型分三组 ,其中第一组未经处理的 Denture gypsum model is made of dental impressions, saliva or blood contamination on the surface of the model, may cause harm to medical workers and technicians, may also be a source of cross-infection in hospitals [1], we use 2% iodophor spray Methods Disinfection gypsum model achieved good results. Materials and Methods 1 Method 38 cases of our outpatient gypsum model divided into three groups, of which the first group of untreated