Effects of mechanical properties of adhesive resin cements on stress distribution in fiber-reinforced composite adhesive fixed partial dentures

Daiichiro YOKOYAMA; Akikazu SHINYA; Harunori GOMI; Pekka K. VALLITTU; Akiyoshi SHINYA

doi:10.4012/dmj.2011-104

Original Papers

Effects of mechanical properties of adhesive resin cements on stress distribution in fiber-reinforced composite adhesive fixed partial dentures

Daiichiro YOKOYAMA, Akikazu SHINYA, Harunori GOMI, Pekka K. VALLITTU, Akiyoshi SHINYA

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Keywords: Adhesive fixed partial dentures, Glass fiber-reinforced composite, Finite element method, Cement interface

JOURNAL FREE ACCESS

2012 Volume 31 Issue 2 Pages 189-196

DOI https://doi.org/10.4012/dmj.2011-104

View "Advance Publication" version (March 23, 2012).

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Abstract

Using finite element analysis (FEA), this study investigated the effects of the mechanical properties of adhesive resin cements on stress distributions in fiber-reinforced resin composite (FRC) adhesive fixed partial dentures (AFPDs). Two adhesive resin cements were compared: Super-Bond C&B and Panavia Fluoro Cement. The AFPD consisted of a pontic to replace a maxillary right lateral incisor and retainers on a maxillary central incisor and canine. FRC framework was made of isotropic, continuous, unidirectional E-glass fibers. Maximum principal stresses were calculated using finite element method (FEM). Test results revealed that differences in the mechanical properties of adhesive resin cements led to different stress distributions at the cement interfaces between AFPD and abutment teeth. Clinical implication of these findings suggested that the safety and longevity of an AFPD depended on choosing an adhesive resin cement with the appropriate mechanical properties.

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