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Journal of Prosthodontics News   April 13, 2020

Static and Fatigue Loading of Veneered Implant‐Supported Fixed Dental Prostheses

JOP_4-15

Now online in the Journal of Prosthodontics, Drs. Rayyan, Abdallah, Segaan, Bonfante, and Osman evaluated the fracture resistance, probability of survival, and failure modes of three different prosthetic materials: 1) composite veneered to FRC; 2) PFZ; and 3) composite veneered to zirconia (CVZ), when used for three-unit implant-supported FDPs.

One-hundred and twenty posterior three-unit FDP (second premolar pontic) frameworks were fabricated. Significant differences were observed among the studied groups for SLF with the highest characteristic strength values observed for PFZ. The probability of survival for was the highest for FRC (98%) and CVZ (100%) and was significantly lower for PFZ.

Most importantly, no FRC framework was fractured during fatigue and the authors conclude that fractures may be confined to the veneering resin composite and chairside repair with the addition of indirect composite could be performed for continued function. 

Rayyan M, Abdallah J, Segaan L, et al: Static and Fatigue Loading of Veneered Implant‐Supported Fixed Dental Prostheses J Prosthodont 2020. doi:10.1111/jopr.13166 

 

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