CLINICAL EVALUATION OF DEBONDING FOR FRONT INDIRECT RESTORATIONS

Introduction. The esthetic appeal, durability, and biocompatibility of porcelain laminate veneers have made them an established option for restoring anterior teeth for almost three decades. They are a valid alternative to complete-coverage restorations since they avoid aggressive dental preparation, thus maintaining tooth structure. However, even such high-precision restorations have a failure rate and complications. Veneer removal is generally accomplished with a rotary instrument. While veneer removal is usually complete, this technique is not ideal as it results in the destruction of the veneer and the underlying tooth structure may be damaged. With the recent introduction of lasers in dentistry, there may be beneficial application of lasers in removing veneers.

Purpose. The aim of our study was to analyze the efficacy of debonding for front indirect restorations.

Materials and methods. Clinical studies conducted at Shupyk National Medical Academy of postgraduate education. According to a survey of 65 patients who had 356 veneers, complication rate was 19.8% (67 veneers). According to our study following groups were created: group 1 (control) — veneer removal using rotary instruments; group 2 — veneer removal using a solid-state laser (Er: YAG); group 3 — veneer removal using a solid-state laser (Er, Cr: YSGG).

Results of the study. According to the results of our study using an Er:YAG and Er, Cr: YSGG laser allows debonding porcelain veneers from teeth without aggressive destruction or removal of underlying tooth structure and in most cases without destroying the veneers.