The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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MARGINAL FIT OF THE AURO GALVANO CROWN SYSTEM MADE USING THE ELECTROFORMING TECHNIQUE

  • Yang Jae-Ho (Department of Prosthodontics, Graduate School, Seoul National University) ;
  • Song Tae-Jin (Department of Prosthodontics, Graduate School, Seoul National University) ;
  • Han Jung-Suk (Department of Prosthodontics, Graduate School, Seoul National University) ;
  • Lee Jae-Bong (Department of Prosthodontics, Graduate School, Seoul National University) ;
  • Lee Sun-Hyung (Department of Prosthodontics, Graduate School, Seoul National University)
  • Published : 2004.12.01
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Abstract

Statement of problem. There have been few studies about the marginal fit of Auro Galvano Crowns. Purpose. The purpose of this study was to compare the marginal fit of the anterior single restorations. Material and methods. The in vitro marginal discrepancies of metal-ceramic, Auro Galvano Crown and coping were evaluated and compared. The Auro Gavano Crowns were made from one extracted maxillary central incisor prepared by milling machine. 30crowns per each system were fabricated. Measurements of a crown were recorded at 50 points that were randomly selected for marginal gap evaluation. Parametric statistical analysis was performed for the results. Results. Mean marginal gap dimensions and standard deviations at the marginal opening for the anterior single crowns were $74{\pm}21{\mu}m$ for the control (metal-ceramic restoration), $45{\pm}11{\mu}m$ for Auro Galvano Crown coping, and $51{\pm}9{\mu}m$ for the Auro Galvano Crown. Conclusions. Auro Calvano Crown showed significantly smaller (P<.05) marginal gap than the control. Ceramic application did not significantly affected the marginal fit of Auro Galvano Crown. (P>.05)

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References

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