Murat KEÇECİ, E. Begüm BÜYÜKERKMEN
Meandros Medical and Dental Journal - 2026;27(1):35-40
Objective: This study aimed to evaluate the effect of alcohol content in mouthwashes on the color stability of monolithic zirconia. Materials and Methods: A total of 72 monolithic zirconia samples were fabricated as disks with a diameter of 10 mm and a thickness of 2 mm. The samples were randomly divided into two groups based on surface treatment methods (mechanical polishing and glazing). Following the surface treatments, each group was further divided into three subgroups based on the immersion solution: distilled water, alcoholic mouthwash, and non-alcoholic mouthwash. Color measurements were performed using a spectrophotometer at baseline and after immersion in the respective solutions. Results: Surface treatment significantly influenced color change (F = 17.491, p = 0.001). Similarly, the type of immersion solution had a statistically significant impact on color stability (F = 21.986, p = 0.001), with the solution type exhibiting the largest effect size among individual factors. The interaction between surface treatment and immersion solution also resulted in a statistically significant difference in color change (F = 24.532, p = 0.001). Conclusion: Glazed surfaces demonstrated a statistically significant reduction in color change regardless of the mouthwash content, ensuring clinically acceptable color stability. However, alcohol-containing mouthwashes were associated with surface wear, leading to greater color deterioration over time.
