Resinas compostas monocromáticas apresentam estabilidade de cor satisfatória quando comparadas às resinas convencionais? Uma revisão sistemáticaa e metanálise

Abstract

Conventional resin composites, despite their good aesthetic properties, have disadvantages regarding longer clinical time for shade matching and greater number of composites needed to achieve an acceptable color match. Thus, single shade composites have been used as a promising alternative. Objective: To investigate whether single shade composites present satisfactory color stability when compared to conventional resins. Methodology: This study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Fifteen studies, both clinical and in-vitro, that evaluated at least one single shade resin and one conventional resin were included and the search was performed in five databases. Risk of bias was assessed by RoB2 and a modified tool for clinical and in-vitro studies, respectively, and the meta-analysis was performed using RevMan5.3. The certainty of the evidence was assessed by the GRADE Results: Among the clinical studies, 2 were classified as “Low risk”, 1 as “Some concerns” and 1 as “High risk”. Among the in vitro studies, 1 was classified as “Low risk”, 4 as “Medium risk” and 6 “High risk”. The certainty of evidence was considered “moderate” and “high”. Conclusion: Single shade and conventional composite resins show equivalent color match and stability after 6 and 12 months.