印模是口腔组织的阴模,它反映了与修复有关的口腔软、硬组织的情况,是临床制作各类修复体的依据和基础,其精确性直接影响到最终修复体质量。影响印模精确性的因素有很多,包括材料的性能,临床操作过程中的温度,操作时间,印模材料与托盘和石膏的结合以及印模的消毒,取 Impression is a negative model of oral tissue, which reflects the repair of the oral soft and hard tissue conditions, is the clinical basis for the production of various types of prosthesis and the basis of its accuracy directly affects the quality of the final restoration. There are many factors affecting the accuracy of the impression, including the performance of the material, the temperature during the clinical operation, the operating time, the combination of the impression material with the tray and gypsum, and the sterilization of the impression