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Effect of a denture cleanser on hardness, roughness and tensile bond strength of denture liners
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Keywords

Acrylic resins
Denture liners
Denture cleanser
Properties

How to Cite

1.
Malheiros-Segundo A de L, Pisani MX, Paranhos H de FO, Souza RF de. Effect of a denture cleanser on hardness, roughness and tensile bond strength of denture liners. Braz. J. Oral Sci. [Internet]. 2008 Oct. 1 [cited 2024 Jun. 16];7(26):1596-601. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8642808

Abstract

Aim: This study aim to investigate the effect of a denture cleanser on hardness, roughness and tensile bond strength of a rigid (Kooliner) and a soft denture liner (Elite Soft) after 7, 60 and 120 days of immersion. Methods: Thirty circular and twenty rectangular specimens of each material were randomly distributed in two groups: control - immersion in artificial saliva at 37°C; and experimental - immersion in artificial saliva at 37ºC combined with immersion in the cleanser for 5 min. Hardness was measured using either a Vickers or Shore A hardness tester, and a surface roughness tester was used to measure the surface roughness. Tensile bond strength was carried out on a universal testing machine. Data were analyzed statistically by ANOVA or Kruskal-Wallis test (α=0.05). Results: No significant difference was found between the groups for the tested properties (p>0.05). There was an increase in the hardness of both materials after 60 days (p>0.05). No difference between the immersion periods was found for the roughness of Kooliner (p>0.05), although the roughness of Elite Soft decreased after 120 days in both groups (p>0.05). Kooliner presented higher tensile bond strength than Elite Soft (p>0.05). Conclusions: Both materials showed alterations on the tested properties during the experimental period, but these changes were not promoted by the denture cleanser.
https://doi.org/10.20396/bjos.v7i26.8642808
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