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. 2024 Dec;16(Suppl 4):S3251-S3253.
doi: 10.4103/jpbs.jpbs_731_24. Epub 2024 Sep 19.

Comparative Evaluation of Surface Roughness of Different Composite Restorative Materials after Thermocycling and Prolonged Immersion in Common Beverages Using Atomic Force Microscopy- In Vitro Study

Akanksha Malik  1 , Anjali K Kothari  1 , Riya Dave  2 , Vinay V Rao  1 , Kaushal Vyas  1 , Deep P Agrawal  1 , Kishan Patel  1
Affiliations

Comparative Evaluation of Surface Roughness of Different Composite Restorative Materials after Thermocycling and Prolonged Immersion in Common Beverages Using Atomic Force Microscopy- In Vitro Study

Akanksha Malik et al. J Pharm Bioallied Sci. 2024 Dec.

Abstract

Background: Direct composite restorations face abrupt temperature changes, varying pH, and surface deterioration in the oral environment. Atomic force microscopy (AFM) provides visual and numerical data on surface roughness.

Aim: This study evaluates and compares the surface roughness of composite restorative materials after simulating oral conditions.

Materials and methods: Three composite groups (n = 16 each) were tested. Group A: Microhybrid, Group B: Nanofilled, and Group C: Nanohybrid. Each group was divided into four subgroups (n = 4 each): distilled water (control), black coffee, Coca-Cola, and Red Bull. After thermocycling and immersion, surface roughness was measured using AFM.

Results: Nanocomposites with uniform monomodal fillers showed the least surface disintegration and superior properties.

Conclusion: Resin chemistry, including filler size and matrix composition, is crucial for composite properties and performance under function.

Keywords: Atomic force microscope; direct composites; nanocomposites; thermocycling.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
AFM Scans [A—Polofil Supra, B—Estelite Sigma Quick, C—Tetric EvoCeram] [1–4 Immersion media]
See this image and copyright information in PMC

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