The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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A COMPARATIVE STUDY ON THE ACCURACY OF IMPRESSION METHOD USING ADDITION SILICONE PUTTY IMPRESSION MATERIAL

부가중합형 Silicone putty 인상재를 이용한 인상채득 방법의 정확성에 관한 연구

  • Je, Hong-Ji (Department of Prosthodontics, College of Dentistry, Pusan National University) ;
  • Jeong, Chang-Mo (Department of Prosthodontics, College of Dentistry, Pusan National University) ;
  • Jeon, Young-Chan (Department of Prosthodontics, College of Dentistry, Pusan National University) ;
  • Hwang, Hie-Seong (Department of Dentistry, College of Medicine, Donga University)
  • 제홍지 (부산대학교 치과대학 보철학교실) ;
  • 정창모 (부산대학교 치과대학 보철학교실) ;
  • 전영찬 (부산대학교 치과대학 보철학교실) ;
  • 황희성 (동아대학교 의과대학 치과학교실)
  • Published : 1996.11.01
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Abstract

In order to compare the accuracy of impression method using addition silicone putty impression material, metal master die was fabricated with 4 cylindrical abutments that were similar in shape to mandibular arch. Among the 4 abutments, two(A, D) with 8mm width and 7mm height were formed in the 2nd molar regions and the other two(B, C) with 6mm width and 7mm height were on the canine regions. Impressions were taken using one-step putty wash impression technique and two-step putty wash impression technique by three different types of impression materials(Perfect, Express, Exaflex). Upon measuring the distance between the abutments on the model by three dimensional measuring machine, the percent of devitaion of the materials were obtained, rendering the following results. The results obtained are as follows : 1. There was no significant difference in accuracy in regard with the impression method between one-step putty wash impression technique and two-step putty wash impression technique using addition silicone putty impression material. 2. There were no difference in accuracy among with three different addition silicone putty impression materials. 3. All the distances between abutments on improved stone models increased in comparison with those on the metal master model.

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