The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지

ON THE MARGINAL FIDELITY OF ALL-CERAMIC CORE USING CAD/CAM SYSTEM

CAD/CAM을 이용하여 제작한 All-ceramic core의 변연 적합도

  • Kim Dong-Keun (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Cho In-Ho (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Lim Ju-Hwan (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Lim Heon-Song (Department of Prosthodontics, College of Dentistry, Dankook University)
  • 김동근 (단국대학교 치과대학 보철학교실) ;
  • 조인호 (단국대학교 치과대학 보철학교실) ;
  • 임주환 (단국대학교 치과대학 보철학교실) ;
  • 임헌승 (단국대학교 치과대학 보철학교실)
  • Published : 2003.02.01
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Abstract

Novel methods producing supplementary and prosthetic material by cutting or discharge processing via computer design have been proposed as alternatives for traditional casting methods and are being utilized for commercial purposes. The CAD/CAM system used in dentistry can be classified into three-dimensional input of target values, restoration design, and material processing. The marginal fidelity in production of In-Ceram core has important clinical implications and is a key consideration issue in CAD/CAM production as well. Through this research, the author arrived at the following conclusion aaer conducting comparison analysis of marginal fidelities between the In-Ceram core produced via CAD/CAM and that produced through the traditional method ; 1. In the cases of mesial, distal, and lingual margins, the core margins via CAD/CAM produced lower values than those via the traditional method, but the differences were found to be statistically insignificant. 2. In the case of labial flange, the core margins via CAD/CAM produced lower values than those via the traditional method and the differences were found to be statistically significant. (p<0.05) 3. In comparision with overall marginal fidelity, the core margins via CAD/CAM produced lower values than those via the traditional method, but the differences were found to be statistically insignificant. 4. Among the core margins produced via the traditional method did not have statistically significant differences but fir those produced via CAD/CAM had statistically significant differences between labial and lingual sides and between labial and mesial sides. (p <0.05).

Keywords

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