TESTING OF ZIRCONIA FPD FRAMEWORKS FOR FIXED PROSTHESES: MODEL DESIGN AND EVALUATION OF FRACTURE LOAD

Int J Prosthodont. 2024 Jun 21:(3):149-154. doi: 10.11607/ijp.7179.

Abstract

In our previous test model, the abutment teeth and the model base were printed with resin and bonded with a polyether material. Some abutment teeth were fractured during the mechanical load test. Therefore, the aim was to develop and evaluate a new model under mechanical loading until fracture with zirconia FPD frameworks. At a fracture load of up to 1,636 N, neither the artificial abutment teeth nor the base model fractured. Furthermore, the artificial abutment teeth did not detach from the base model. Therefore, the model should be suitable for mechanical testing of most ceramic-based framework materials for three-unit FPDs.

MeSH terms

  • Dental Abutments
  • Dental Materials / chemistry
  • Dental Restoration Failure
  • Dental Stress Analysis*
  • Denture Design
  • Denture, Partial, Fixed*
  • Humans
  • Materials Testing*
  • Models, Dental
  • Zirconium* / chemistry

Substances

  • Zirconium
  • zirconium oxide
  • Dental Materials