2023 ACP ANNUAL SESSION

The Zirconia Wing-Bridge Clinical Trial Progress Report

Tyler Peterson, Joel Janis, DDS, David McMillan, DDS

INTRODUCTION/BACKGROUND

•This zirconia wing-bridge is a non-invasive treatment alternative for replacing missing anterior teeth.

•Resin-bonded zirconia framework with countersunk holes with a porcelain facing were evaluated for replacing a single anterior tooth.

•The purpose of this study was to determine the retention and durability of these bridges.

METHODS

•Eight patients participated from the Roseman clinic who had a missing anterior incisor with two intact abutment teeth.

•Nine bridges were fabricated and bonded to the lingual surfaces of the patients’ abutment teeth.

RESULTS

•The bridges showed to have acceptable durability, reasonable esthetics, and sustainable retention.

•Three different bridges de-bonded at 11 months, 5 years, and 6 years.

•One de-bonding occurred from a fracture around the counter-sunk holes.

CONCLUSIONS/DISCUSSION

•When porcelain fused-to-zirconia wing-bridges are fabricated and bonded according to specifications, they can be a predictable and favorable option.

•This restorative technique can be successful when used as a long-term provisional for future treatment.

•The countersunk holes provided acceptable bond strength but compromised the physical strength of the bridge.

Zirconia Wing Bridge Clinical Trial Progress Report