Investigation of distortions around the cervical area of teeth restored with two kinds of crown materials

• SUZUKI Chikako

  Fixed Prosthodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University

• MIURA Hiroyuki

  Fixed Prosthodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University

• OKADA Daizo

  Fixed Prosthodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University

• KOMADA Wataru

  Fixed Prosthodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University

• MIYASAKA Munenaga

  Fixed Prosthodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University

• YAMAMOTO Masahiro

  Fixed Prosthodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University

• MASUOKA David

  Fixed Prosthodontics, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University

Abstract

The purpose of this study was to identify crown materials to decrease the stress concentrated at the cervical area of endodontically treated teeth. To this end, 14 extracted human mandibular premolars were divided into two groups for this study: complete cast crowns versus polymer-based crown and bridge material crowns. Both complete cast crowns (MC) and polymer-based crown and bridge material crowns (HC) were cemented with a glycidyl methacrylate-based resin cement (RC) to composite resin cores with glass fiber posts. Static loading was applied and distortion was measured with four pieces of strain gages attached to the marginal area. Findings showed that there was a large difference in distortion between crown and root in MC. On the other hand, distortions at the cervical area of crown and root were similar in HC.

Journal

• Dental Materials Journal

  Dental Materials Journal 28 (2), 142-152, 2009

  The Japanese Society for Dental Materials and Devices

Keywords

• Strain gage
• Distortion
• Crown materials

Details

• CRID: 1390282679692879232
• NII Article ID: 10025915013
• NII Book ID: AA10443149
• DOI: 10.4012/dmj.28.142
• COI: 1:STN:280:DC%2BD1MzpsFentg%3D%3D
• ISSN: 18811361
• ISSN: 02874547
• Web Site: https://www.jstage.jst.go.jp/article/dmj/28/2/28_2_142/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2009275105
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed