Fatores críticos na confecção de laminados cerâmicos: revisão da literatura

Abstract

The dental treatment using ceramic laminates involves critical elaboration steps ranging from planning the case to its cementation. The aim of the present study was to review the literature and to describe the critical factors in treatment using ceramic laminates that may interfere with its clinical success, which are: selection and case planning, selection of material, preparation and cementation. For this, PubMed articles were selected from 2000 to 2016. The evaluation of each patient before the treatment is essential in the selection and planning stage, attending to those with parafunctional habits, caries, periodontal problems and endodontically treated teeth. The study of the material must be meticulous, since the feldspathic stratified ceramic presents superior aesthetic results compared to pressed ceramic, when same thickness is applied. It is important to emphasize that pressed systems have greater strength and resistance to fractures when compared to powder/liquid systems. Still, improved adhesive systems and resin cements ensure better treatment results. Regarding the preparations, the success of the laminates should be the least invasive and deepest possible. In the cementation, it is necessary to carry out an adequate conditioning, following the manufacturers instructions and avoid contaminations. Silanization drying process must be well attended. The adhesive layer should be thin and the cement must have a suitable thickness. The cementation technique that has presented better results is the application of the adhesive to the substrate and polymerization prior to cementation. The present work has as conclusion that an adequate selection of case and attention to critical factors in conducting treatments with ceramic laminates are of paramount importance in the final result of this treatment.