Vol. 11, Issue 4, Part E (2025)

Introduction: Color stability in composite resins represents a clinical challenge due to continuous exposure to pigments, beverages, chemical agents, and intrinsic material factors. Loss of stability compromises the aesthetics and longevity of the restorations.

Objective: To analyze recent literature on color stability in composite resins, identifying intrinsic and extrinsic factors that influence their clinical behavior.

Methodology: A systematic review was conducted in databases (PubMed, Scopus, Cochrane, and Web of Science), including in vitro and clinical studies published between 2020 and 2025 that evaluated the color stability of composite resins under different experimental conditions.

Results: Studies indicate four main areas: (1) influence of beverages and staining agents, (2) impact of chemical solutions and mouthwashes, (3) effect of intrinsic material properties (type of resin, opalescence, water sorption, solubility), and (4) the role of surface finishing and polishing.

Conclusion: The color stability of composite resins is dependent on both the material and environmental factors. Coffee, tea, red wine, and carbonated drinks generate clinically perceptible changes, while surface finishing and the selection of the resin type are determining factors for the long-term aesthetic prognosis.