Color Stability of Provisional Restorative Materials after Exposure to Commonly consumed Beverages: A Systematic Review

Abstract

The purpose of this systematic review was to find the effects of commonly consumed beverages on the color stability of provisional restorative materials. Materials and methods: An electronic search in the PubMed/MEDLINE database was used to find relevant papers that had been written in English exclusively and published before November 2021. Based on the population, intervention, control, and outcomes (PICO), the primary research question for this study was "is there any difference in the color stability of provisional restorative materials after exposure to commonly consumed beverages?"By evaluating the title, abstract, and full-Text of the articles, if they met the inclusion criteria, the relevance of the articles was verified. The risk of bias was assessed using specific study design-related bias assessment forms. Result: The database search yielded 1,198 items, of which 1,188 were discarded due to being irrelevant, duplicates, or lacking data. The remaining 10 full-Text articles were assessed for eligibility. Eight articles were yielded by manual search and five articles were added through the search of reference list of relevant articles. A total of 23 full-Text papers were evaluated for eligibility, with one article being excluded. The current systematic review includes a total of 22 studies. Conclusion: The findings from this systematic review indicate that although the color stability of provisional restorative materials has been the subject of several investigations, there is a lot of heterogeneity in the data. Regarding different beverages, coffee caused the most noticeable color changes in the materials tested. Regarding color stability, heat-cured poly(methyl methacrylate) (PMMA) showed better performance than chemically-cured PMMA followed by bis-Acryl resin. The decrease in color stability of the temporary materials was significantly influenced by increasing the immersion period of the test specimens.