Marginal Fitness of Composite Resin Crown Fabricated by the Dental CAD / CAM System

DOI 8 Citations 22 References
  • HIKITA Kazuhiro
    Institue of Medical Science, Health Sciences University of Hokkaido
  • MAIDA Takeo
    Institue of Medical Science, Health Sciences University of Hokkaido
  • KOBAYASHI Kunihiko
    Hokkaido University Dental Hospital Center for Advanced Oral Medicine
  • TANAKA Osamu
    Institue of Medical Science, Health Sciences University of Hokkaido
  • FUJII Takeo
    Institue of Medical Science, Health Sciences University of Hokkaido
  • OHNO Hiroki
    Department of Dental Materials and Engineering, Health Sciences University of Hokkaido
  • UCHIYAMA Yoichi
    Professor Emeritus of Hokkaido University:Visiting Professor of Health Sciences University of Hokkaido

Bibliographic Information

Other Title
  • CAD / CAMシステムによって製作したコンポジットレジンクラウンの辺縁適合性

Search this article

Abstract

In this investigation, the marginal fitness of a composite resin crown, fabricated by the dental CAD/CAM system, was evaluated. Eight composite resin crowns were fabricated for 8 abutment plaster models, by the dental CAD/CAM system, and composite resin crowns without any adjustment were cemented to each abutment tooth model. After embedding in epoxy resin, they were sectioned into 8 blocks. For every sample, the marginal cement thickness of 16 sections was measured using an optical microscope. Also, the marginal regions of th composite resin and the ceramic crowns were examined with a scanning electron microscope, As a result, the mean of the cement thickness for the composite resin crowns was 45 micro meters. The margins of these crowns were chipped slightly, but less chipped than ceramic crowns. This indicated that composite resin block was well−suited for milling.

Journal

Citations (8)*help

See more

References(22)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top