Finite element analysis of fiber-reinforced fixed partial dentures

Takashi Nakamura, Tatsuo Ohyama, Tomonori Waki, Soichiro Kinuta, Kazumichi Wakabayashi, Naoki Takano, Hirofumi Yatani

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Two-dimensional finite element models were created for a three-unit posterior fixed partial denture. An experimental resin-impregnated glass fiber was used as the fiber-reinforced composite (FRC) for the framework. The FRC was evaluated using varying combinations of position and thickness, alongside with two types of veneering composite. A load of 50 N simulating bite force was applied at the pontic in a vertical direction. Tensile stress was examined using a finite element analysis program. Model without FRC showed tensile stress concentrations within the veneering composite on the cervical side of the pontic - from the connector area to the bottom of the pontic. Model with FRC at the top of the pontic had almost the same stress distribution as the model without FRC. Models with 0.4-0.8 mm thick FRC positioned at the bottom of the pontic showed maximum tensile stresses reduced by 4-19% within the veneering composite.

Original languageEnglish
Pages (from-to)275-279
Number of pages5
JournalDental Materials Journal
Volume24
Issue number2
DOIs
Publication statusPublished - 2005 Jun
Externally publishedYes

Keywords

  • Fiber-reinforced composite
  • Finite element analysis
  • Fixed partial denture

ASJC Scopus subject areas

  • Ceramics and Composites
  • Dentistry(all)

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