Machining accuracy of wax crown to cement spaces with the wax CAD/CAM technique using milling machine

DOI Web Site
  • SHIMIZU Sakura
    Department of Crown and Bridge, The Nippon Dental University, School of Life Dentistry at Tokyo
  • SHINYA Akikazu
    Department of Crown and Bridge, The Nippon Dental University, School of Life Dentistry at Tokyo Department of Prosthetic Dentistry and Biomaterials Science, Institute of Dentistry, University of Turku
  • SHINYA Akiyoshi
    Department of Crown and Bridge, The Nippon Dental University, School of Life Dentistry at Tokyo

Bibliographic Information

Other Title
  • ワックスCAD/CAMテクニックによるワックスクラウンの加工精度に及ぼすセメント設計値の影響
  • ワックス CAD/CAM テクニック ニ ヨル ワックスクラウン ノ カコウ セイド ニ オヨボス セメント セッケイチ ノ エイキョウ

Search this article

Abstract

<p>In this study, we clarified the influence of the cement space thickness on the accuracy of the wax CAD/CAM crown（wax crown）made by the wax CAD/CAM technique. With a cement space thickness of 0 μm, the wax crown was smaller than the die model at measurement points of 2.0, 3.0, 4.0, and 5.0 mm except for at the margin, and it did not fit the die model. Other wax crowns with a cement space thickness of 50, 100, and 150 μm were bigger than the die model at all measurement points, and all wax crowns fitted.The cement space thickness of all wax crowns was 18〜38 μm smaller than the designed value. Based on the results, when designing the cement space thickness in CAD/CAM, it was suggested that modification of the thickness value based on the machining error should be considered.</p>

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top