The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지

EFFECT OF IMPRESS10N TECHNIQUE ON THE ACCURACY OF MASTER CAST FOR IMPLANT PROSTHESIS

인상채득법이 임플랜트 주모형의 정확성에 미치는 영향

  • Kim Young-Oh (Department of Prosthodontics, Graduate School, Chonnam National University) ;
  • Yang Hong-So (Department of Prosthodontics, Graduate School, Chonnam National University) ;
  • Vang Mong-Sook (Department of Prosthodontics, Graduate School, Chonnam National University) ;
  • Park Sang-Won (Department of Prosthodontics, Graduate School, Chonnam National University) ;
  • Park Ha-Ok (Department of Prosthodontics, Graduate School, Chonnam National University) ;
  • Lee Jai-Bong (Dept. of Prosthodontics, College of Dentistry, Seoul National University)
  • 김영오 (전남대학교 치의학 전문대학원 보철학교실) ;
  • 양홍서 (전남대학교 치의학 전문대학원 보철학교실) ;
  • 방몽숙 (전남대학교 치의학 전문대학원 보철학교실) ;
  • 박상원 (전남대학교 치의학 전문대학원 보철학교실) ;
  • 박하옥 (전남대학교 치의학 전문대학원 보철학교실) ;
  • 이재봉 (서울대학교 치과대학 보철학교실)
  • Published : 2006.02.01
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Abstract

Purpose: The purpose of this study was to compare the accuracy of master cast fabricated by using different impression methods at the different impression levels. Material and Method: The master model used in this study was resin block having low implant analogs. Impression method studied were 1) direct method on future level (Group FIX-D), 2) Indirect method on fixture level(Group FIX-I), 3) Modified indirect method on fixture level(Group FD(-M), 4) Direct method on abutment level(Group AB-D) and 5) Indirect method on abutment level(Group AB-I). Each of the five groups took 10 impressions. Fifty impressions were made for master cast by using Impregum $F^(R)$ impression material loaded on individual tray. Three dimensional measuring microscope was used to measure the inter-implant distance. Error rate of each inter-implant distance were calculated and evaluated. Results: The results were as follows. 1. Group FIX exhibited higher accuracy than group AB. 2 In group FIX, modified indirect method showed the highest accuracy, while indirect method showed the lowest accuracy. In group Ab, indirect method showed the higher accuracy than direct method. 3. Group FIX showed larger horizontal error than group AB. But, group AB showed the larger vertical error than group FIX. 4. Group Fix-M showed smallest vertical and horizontal error.

Keywords

References

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