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Published on: December 26, 2016
Effects of different denture cleaning procedures on denture surface and Candida albicans adhesion
Gamze Yaren Başkent1, Elif Aydoğan Ayaz2, Cihan İnan3
1Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon, Turkey.
Statement Of Problem:
Denture hygiene is essential for oral health as acrylic resin roughness affects Candida albicans adhesion. Cleaning methods may alter surface properties, warranting further research to determine the most effective long-term approach.
Purpose:
The aim of this in vitro study was to compare the effect of different denture cleaning procedures on the surface roughness and Candida adhesion of acrylic resins.
Material And Methods:
A total of 120 resin specimens were divided into 12 subgroups (n=10), including 3 materials, a heat-polymerized acrylic resin (Meliodent), an autopolymerized acrylic resin (Meliodent Rapid Repair), and a hard reline material (GC Reline Hard) and 4 cleaning methods, distilled water (control group), Corega alkaline peroxide-containing effervescent tablet, brushing, and electrolyzed water. Surface roughness values of the resin specimens were measured using a contact profilometer device before cleaning and after 7, 30, and 90 days. Candida adhesion was measured and colony forming units (CFU/mL) were assessed. Statistical analysis was performed by using 3-way ANOVA followed by the Bonferroni correction for the surface roughness data and the Kruskal-Wallis test for Candida colonization (α=.05).
Results:
The surface roughness values of the 3 different acrylic resin materials decreased significantly 30 and 90 days after applying the denture cleaning procedures (P<.001). The denture cleaning procedure affected the surface roughness of heat-polymerized (P<.001) and autopolymerized resins after 90 days (P=.002). The surface roughness of the hard reline materials were affected by different cleaning procedures at all time intervals. Candida adhesion was significantly lower in all type of acrylic resin materials after immersion in alkaline peroxide-based cleansing tablets (P<.001).
Conclusions:
According to the findings of this study, when evaluating surface roughness, the cleaning procedure with electrolyzed water may be an alternative to mechanical cleaning but should be improved in terms of removing Candida adhesion. Chemical cleaning with denture cleaning tablets was found to be optimal for long-term usage.
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