Meeting abstract
Three-Year Clinical Evaluation of in Ceram Zirconia Bridges.
MJ. Suarez
JF. Lozano
MP. Salido
G Pradies
F. Martinez
Abstract
INTRODUCTION: The demand for esthetic restorations has led to the development of materials that are metal free. These materials must have adequate strength to be an alternative for the fabrication of fixed partial dentures in posterior segments of the dental arches.
PURPOSE: The aim of the present study was to investigate in a long-term perspective whether the strength of the In Ceram Zirconia material is sufficient for use in posterior bridges.
MATERIAL AND METHODS: Sixteen patients, who were between 23 and 50 years of age, with indications for a fixed denture replacing premolar or molar, were examined for participation in the study. Eighteen bridges were constructed with one or two pontics and two abutments, one on each side of the pontic. The patients were informed about risks of, and alternatives to, the proposed therapy.
The supporting teeth were prepared with chamfer finish line and lack ofsharp line angles. Impressions were made with a rigid standard tray with an A-silicone putty soft and light-body materials (Aquasil, Dentsply). The laboratory procedures were performed by a laboratory autho rised by the Vita supplier. Ten of the bridges were
cemented permanently with zinc phosphate cement and eight with glass ionomer cement. Clinical evaluation of the bridges were performed according to the California Dental Association’s quality evaluation system.
RESULT: After three year evaluation all eighteen bridges were without signs of or any change in colour, and marginal integrity.
CONCLUSION: In Ceram Zirconia is a potential alternative for full ceramic bridges in the posterior segments.
Keywords
Hrčak ID:
10103
URI
Publication date:
15.9.2002.
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