Fracture behavior of pontics of fiber-reinforced composite fixed dental prostheses

Dent Mater J. 2015;34(6):746-53. doi: 10.4012/dmj.2015-081.


To evaluate the load-bearing capacities and failure mechanisms of FRC FDPs using shell-shaped acrylic denture teeth as pontics with different composite resins as filling materials. Eighty-four inlay-retained FDPs with FRC frameworks were made using shell-shaped posterior artificial teeth as pontics. Different composite resins were used as filling materials to complete the shape of the pontics. Four groups (n=21/group) were formed based on the filling material. Each group was subdivided into three subgroups and tested at 90º and 30°. Each FDP was statically loaded from the pontic until the final fracture. ANOVA revealed statistically significant differences in the load-bearing capacities according to filling material, angle and storage (p<0.01). The fracture propagated from the fiber-rich part of the pontic towards the occlusal surface of the FDP. The filling material influenced the load-bearing capacities of FRC FDPs with shell-shaped denture teeth used as pontics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Composite Resins / chemistry
  • Dental Materials / chemistry
  • Dental Restoration Failure*
  • Dental Stress Analysis
  • Denture Design*
  • Denture, Partial, Fixed, Resin-Bonded*
  • Materials Testing


  • Composite Resins
  • Dental Materials