The Impact of Artificial Aging on the Color Stability and Hardness of Nanocomposite Resin
نویسندگان
چکیده
Objective: This study aimed to investigate the impact of artificial aging on color stability and hardness nanocomposite resin. Methods: Four resin materials were used: Filtek Z350 XT (FZ), Synergy D6 (SD), Grandio (GD), Clearfil Majesty Esthetic (CM). Thirty specimens created from each material, which divided into three (A,B,C) groups 10 each. For values visual lightness (L*), degree redness greenness (a*), yellowness blueness (b*) in group A before after aging, as well B C measured. The American Society for Testing Materials (ASTM) G155 Cycle 1 standard was adopted test specimens. difference (ΔE00) value (ΔH) calculated. Results: Aging found have an ΔE00 ( H = 17.6, p 0.001), significantly higher than < 0.05). between FZ SD, GD, CM statistically significant had highest values. There no correlation change percentage r 0.114). Conclusion: Among four resins tested this study, except XT’s (>1.8) clinically unacceptable range, remaining kinds (<1.8) all acceptable range. increased aging. results present revealed that there
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ژورنال
عنوان ژورنال: Frontiers in Materials
سال: 2021
ISSN: ['2296-8016']
DOI: https://doi.org/10.3389/fmats.2021.722131