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Published on: November 21, 2025
Evaluation of experimental cleanser solution of Ricinus communis: effect on soft denture liner properties
Marina Xavier Pisani1, Cláudia Helena Lovato da Silva, Helena Freitas Oliveira Paranhos
1Department of Dental Materials and Prosthodontics, São Paulo University, Ribeirão Preto Dental School, São Paulo, Brazil. mxpisani@hotmail.com
Objective:
This study evaluated colour stability, hardness and roughness of soft denture liners after immersion in various cleansers.
Materials And Methods:
Thirty specimens (14 mm × 4 mm) of Elite Soft Relining (ES) and Mucopren Soft (MS) were randomly immersed in distilled water at 37°C, sodium hypochlorite 1%, and an experimental Ricinus communis solution (RC) for 7, 15 and 183 continuous days.
Results:
anova (p < 0.05) and Tukey's test indicated that after T7 (μ =8.79 ± 7.36); T15 (μ = 4.23 ± 2.62) and T183 (μ = 8.78 ± 3.16), MS presented a higher increase in hardness than ES. After T7, MS underwent an increase in roughness (μ = 0.09 ± 0.80); ES underwent a decrease (μ = -0.08 ± 0.16). RC caused the smallest variation in roughness. After T15, both materials presented an increase in roughness. After T183, ES (μ = -0.30 ± 0.48) presented a higher roughness variation than MS (μ = -0.07 ± 0.32). Hypochlorite caused an increase in roughness (μ = 0.02 ± 0.19).
Conclusion:
After all periods ES presented higher colour alteration than MS; highest colour alteration was caused by hypochlorite. Both materials were more stable after immersion in RC.
