Year: 2025 | Month: August | Volume: 12 | Issue: 8 | Pages: 310-316
DOI: https://doi.org/10.52403/ijrr.20250836
Comparative Evaluation of Surface Roughness and Wear Resistance of Heat Cured Acrylic Denture Base Resin Subjected to Long Term Immersion in Different TDS Levels of Water – An In-Vitro Study
Maduri Manasa1, Pawan Kumar2, Swathi Nallabapani3, Veerendra Prasad4, Sriharsha Pudi5, Shradha S Kurup6
1Post Graduate, Department of Prosthodontics Including Crown and Bridge MNR Dental College and Hospital, Sanga Reddy, Telangana, India
2Professor and HOD, Department of Prosthodontics Including Crown and Bridge MNR Dental College and Hospital, Sanga Reddy, Telangana, India
3Assistant Professor, Department of Prosthodontics Including Crown and Bridge MNR Dental College and Hospital, Sanga Reddy, Telangana, India
4Professor, Department of Prosthodontics Including Crown and Bridge MNR Dental college and Hospital, Sanga Reddy, Telangana, India
5Associate Professor, Department of Prosthodontics Including Crown and Bridge MNR Dental College and Hospital, Sanga Reddy, Telangana, India
6Post Graduate, Department of Prosthodontics Including Crown and Bridge MNR Dental College and Hospital, Sanga Reddy, Telangana, India
Corresponding Author: Swathi Nallabapani
ABSTRACT
Objective: This in-vitro study aimed to compare the surface roughness and wear resistance of conventional and high-impact heat-cured acrylic denture base resins following long-term immersion in water with varying Total Dissolved Solids (TDS) levels.
Materials and Methods: A total of 160 samples were divided into two groups: Group A (conventional acrylic resin) and Group B (high-impact acrylic resin). Each group was subdivided based on water type: control, hard, soft, and distilled. Surface roughness was measured using a profilometer, and wear resistance was tested with a pin-on-disc apparatus after three months of immersion.
Results: Statistically significant differences were observed between groups and across time points. High-impact resin exhibited lower surface roughness and higher wear resistance than conventional resin across all water types. Hard water resulted in the most significant deterioration in both materials.
Conclusion: Water quality, especially TDS level, affects the longevity and clinical performance of denture base resins. High-impact acrylic resin demonstrated superior properties, suggesting its preferable use in varied water environments.
Keywords: Surface roughness, Wear resistance, acrylic resin, Denture base, Total Dissolved Solids (TDS), Water immersion, High-impact resin.
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