The Surface roughness of acrylic denture base immersed with herbal denture cleanser

Background: Plaque accumulation on dentures can be prevented through daily denture cleaning. Currently, commercially available denture cleansers, such as the chemical-based product (Polident), may increase the surface roughness of acrylic resin denture bases, potentially enhancing microorganism adherence. Graptophyllum pictum leaf extract (GPLE 50%) concentration is emerging as a strong candidate for an herbal denture cleanser due to its potent fungicidal activity. However, to date, no studies have reported the effects of GPLE 50% on surface roughness. Objective: This study aims to investigate the effects of Graptophyllum pictum leaf extract at a 50% concentration as a denture cleaning agent on the surface roughness of acrylic denture bases, with immersion conducted for 5 minutes daily over periods of one, two, three, and four weeks. Methods: Nine acrylic resin base samples, each measuring 20mm x 10mm x 10mm, were divided into three groups: two control groups (Polident and distilled water) and one treatment group (GPLE 50%), with each group replicated three times. All samples were immersed for five minutes daily over a period of one, two, three, and four weeks. Surface roughness was measured using Atomic Force Microscopy (AFM) and statistically analyzed. Result: There was no significant difference between the surface roughness of acrylic denture bases before and after treatment (One-Way ANOVA; p>0.05). Conclusion: GPLE 50% did not have a significant effect on the surface roughness of the acrylic resin denture base.