NDLI: The Effect of a Green Smoothie on Microhardness, Profile Roughness and Color Change of Dental Restorative Materials

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The Effect of a Green Smoothie on Microhardness, Profile Roughness and Color Change of Dental Restorative Materials

Content Provider	MDPI
Author	Nikolina, Nika Veček Ivana, Miletić Par, Matej Sever, Eva Klarić Krmek, Silvana Jukić
Copyright Year	2022
Description	Acidic drinks are known to exert negative effects on the surface properties of dental restorative materials. However, the effect of increasingly popular green smoothie drinks has not been addressed so far. The present study investigated the effect of cyclic immersions (5 min daily over 30 days) in a green smoothie drink on the surface properties of contemporary dental restorative materials, including resin composites, an alkasite, and a glass hybrid. Vickers microhardness, profile roughness, and perceptible color change in the CIE L* a* b* color space were evaluated as clinically relevant properties of the material surface. After 30-day green smoothie immersion, microhardness values either decreased by 8–28% (for resin composites) or increased by up to 91% (for glass hybrid). The increase in profile roughness (Ra parameter) of smoothie-immersed specimens was 7–26 times higher compared to the control group. The perceptible color change (ΔE*) in the smoothie group was 3–8 times higher compared to the control group. Overall, this study demonstrated that daily exposure of dental restorations made from resin composites, alkasites, and glass hybrid materials to a green smoothie drink can significantly accelerate material degradation, which is reflected as surface softening, as well as higher roughness and higher perceptible color change.
Starting Page	2067
e-ISSN	20734360
DOI	10.3390/polym14102067
Journal	Polymers
Issue Number	10
Volume Number	14
Language	English
Publisher	MDPI
Publisher Date	2022-05-19
Access Restriction	Open
Subject Keyword	Polymers Dentistry and Oral Surgery Green Smoothie Resin Composites Alkasite Glass Hybrid Microhardness Roughness Color
Content Type	Text
Resource Type	Article

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