Effect of curcumin on physico-mechanical properties of heat polymerized denture base resin

• Published in: BMC oral health 2024-10, Vol.24 (1), p.1300-8, Article 1300
• Main Authors: Mahajan, Aashmika, Chander, Naveen Gopi, Balasubramanian, Muthukumar
• Format: Article
• Language: English
• Subjects: Acrylic Resins - chemistry; Aesthetics; Analysis; Biocompatibility; Chemical bonds; Color; Composite materials; Curcumin; Curcumin - chemistry; Curcumin - pharmacology; Dental acrylic resins; Dental Materials - chemistry; Dental resins; Dental Stress Analysis; Denture base resin; Denture Bases; Dentures; Dosage and administration; Flexural Strength; Fourier transforms; Heat; Hot Temperature; Humans; Hypotheses; Impact strength; Materials; Materials Testing; Mechanical properties; Optical properties; Patient satisfaction; PMMA; Polymerization; Polymers; Properties; Resins; Scanning electron microscopy; Spectrum analysis; Statistical analysis; Stress, Mechanical; Surface Properties; Turmeric
• ISSN: 1472-6831; 1472-6831
• DOI: 10.1186/s12903-024-05086-9

Current denture base resins lack adequate strength and antimicrobial properties, necessitating the exploration of alternative solutions. The purpose of this study was to evaluate the effects of curcumin incorporation on the physico-mechanical properties of heat-cured denture base resin, filling a gap in the literature regarding this correlation. Heat-cured denture base resin was supplemented with increasing concentrations of curcumin (CR). Groups were designated as CR-0 (0%), CR-0.05 (0.05%), CR-0.10 (0.10%), CR-0.50 (0.50%), and CR-1 (1%), based on the increasing concentrations of curcumin incorporated into the material. Physico-mechanical properties, including flexural strength, surface roughness, fracture toughness, impact strength, and color difference, were evaluated following the testing standards. Statistical analysis involved Kruskal-Wallis ANOVA followed by Dunn's test for multiple comparisons, with significance set at P ≤ 0.05 and Bonferroni's correction applied to p-values. Flexural strength peaked at 153.80 MPa in the CR-0.10 group, while surface roughness was lowest at 0.14 micrometers in the CR-0.50 group. Fracture toughness reached its highest value at 1.80 kJ/m^2 in the CR-0.05 group, and impact strength was greatest at 6.52 Joules in the CR-0.05 group. Additionally, color difference was least pronounced in the CR-0.50 group. Flexural strength, surface roughness, fracture toughness, impact strength, and color difference varied significantly among the control group and different curcumin concentrations (P