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
Year: 2024
Type: article
Abstract: A BSTRACT 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.
Authors: Akanksha Malik, Anjali K. Kothari, Riya Dave, Vinay V. Rao, Kaushal Vyas, Deep P. Agrawal, Kishan Patel
Institution: Government Dental College and Hospital
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $250
OpenAlex ID: W4405823547