| Abstract [eng] |
Summary. Introduction. Regardless of ceramic veneers esthetics and biocompatibility, their durability is often limited by the number of complications. The conventional method for removal is grinding the restoration with rotary instruments which is considered time-consuming, tooth and veneer damaging procedure. The aim of this systematic review is to assess the efficiency of conventional procedure alternative- erbium laser-assisted ceramic veneer removal. Materials and methods. PubMed, Wiley Online Library and ScienceDirect databases were investigated for in vivo and in vitro studies. Searches were performed according to PRISMA recommendations from 2019-10-01 to 2020-03-25. Five articles were selected, after removal of duplicates and screening according to Cochrane's methodological guidelines. The quality of these academic papers was assessed using Checklist for Reporting In vitro Studies guidelines. Data was summarized. Results. The selected scientific articles in this systematic review were categorized by the effectiveness of the lasers and its influence on the teeth and veneer during separation of the discussed elements. The shear test revealed significantly lower shear bond strength for the laser irradiated groups (p<0.001) in comparison with control group where no laser application was performed. The average removal time of laminates did not exceed 350 s. There was no harmful thermal effect on pulp tissue detected using erbium lasers. All investigators admited, that debonded teeth surface and veneers were intact. Conclusions. The application of laser is efficient and safe method for removing ceramic veneers. The process of debonding can be affected by a great deal of factors, such as the choice of ceramic and cement material, laser type, method of application, lasing time and etc. Indirect ceramic restoration can be removed without any loss of integrity or damage to the tooth enamel in a shorter time. The dangerous risk of pulp temperature rise can be avoided by using a water-air cooling system and adjusting proper laser parameters. |
