The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지

A COMPARATIVE STUDY ON THE ACCURACY OF MASTER CASTS BY IMPLANT IMPRESSION TECHNIQUES

치과 임플랜트 인상채득 방법에 따른 주모형의 정확성에 대한 비교 연구

  • Rhyu Seok-Min (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Cho In-Ho (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Lim Heon-Song (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Lim Ju-Hwan (Department of Prosthodontics, College of Dentistry, Dankook University)
  • 류석민 (단국대학교 치과대학 보철학교실) ;
  • 조인호 (단국대학교 치과대학 보철학교실) ;
  • 임헌송 (단국대학교 치과대학 보철학교실) ;
  • 임주환 (단국대학교 치과대학 보철학교실)
  • Published : 2002.02.01
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Abstract

As the inaccuracy which was made in implant impression prevented passive fit, it needed to solder the sectioned framework at several locations to correct the inaccuracy. Many clinicians have suggested impression techniques which could make passive fit between implant and superstructure. The purpose of this research was to measure and compare the accuracy of three methods of taking impression with the strain amplifier. The experimental groups were classified as follows : Group I : splinted the two parts with $Futar^{(R)}D$ Occlusion. Group II : splinted the two parts with $DuraLay^{(R)}$. Group III ; didn't splint the two parts. The results were as follows ; 1. The values of strain in the vertical and horizontal surfaces were increased in the order of group I, group II and group III. 2. Group 1 showed higher accuracy of the duplicated casts in the vortical and horizontal sur faces than group II and group III (p<0.05). 3. There were no significant differences in the accuracy of the duplicated casts between group II and group III. From the above results, it is considered that the splinting method of impression copings could make an influence on the accuracy of the master casts. To improve the accuracy of the master casts, splinting the squared impression copings with the additional silicone occlusion materials is recommendable.

Keywords

References

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