Purpose: To summarize the past 15 years results of color stability studies of silicone maxillofacial elastomers,and the translation of the results to the clinical setting.Methods: Although the silicone elastomers have been used in the maxillofacial prosthetics field for over half a century,there are still numerous reports of dissatisfaction with color stability,esthetics,and longevity.The result of a global satisfaction quality-of-life test instrument revealed that the restoration of esthetics was the most relevant need of patients who wear facial prostheses and ranked as the greatest problem among all evaluated domains.The final esthetic result and color stability are the most important factors affecting clinical success or failure of maxillofacial prostheses.Color changes have directed most investigations on the color stability of colorants and elastomers.