Efficacy of denture cleaners on the surface roughness and <i>Candida albicans</i> adherence of sealant agent coupled denture base materials

Abstract

This study investigated the effect of denture cleansers on the surface roughness and Candida albicans adherence of surface sealant agent coupled denture base resins. One hundred and twenty specimens were fabricated from 2 polymethyl methacrylate (PMMA) (Meliodent; Acron MC) and 1 polyamide (Deflex) denture base materials, coated with a sealant agent (Palaseal) and divided into 4 groups (n=10) according to overnight cleaning procedures: distilled water (control), 5% sodium hypochlorite (NaOCl) and two different sodium perborate (Corega; Rapident). The surface roughness values were measured with a profilometer before (Ra0) and after 90 days immersion in denture cleaners (Ra1). Specimens were incubated with Candida albicans suspension and Candida colonyforming units (CFU) (Cfu/mm) were counted. Significant differences were found, between the Ra0 and Ra1 values of 5% NaOCl applied Acron MC, Deflex and also Rapident applied Deflex groups (p<0.05). Denture cleaning procedures had no significant effects on the quantitiy of Candida albicans.

An In-Vitro Evaluation of Alternative Disinfection Methods of Acrylic resin and Thermoplastic Resin Denture Base Materials

“…C. albicans adhesion to resin materials is promoted by oral environment temperature and the acquired pellicle formed over dentures. Ribeiro et al (37) .Found Candida spp. (65.5%) more than Strep.…”

Effect of Antibacterial Silver-Releasing Filler on the Physicochemical Properties of Poly(Methyl Methacrylate) Denture Base Material

“…Interestingly, this problem and its potential long-term consequences for patients' health have not yet been studied. The reduction in the number and size of scratches, craters, and other damage that occurs on the surface of materials during abrasion is also important due to the fact that they are potential areas where increased adherence of yeast-like fungi to the surface of materials can occur [21,23,109].…”

“…Numerous studies have proved the varied effectiveness of removing microorganisms from the surface of prosthetic materials, for example, by using chlorhexidine gluconate, guanidine solution, peroxides, irradiation microwaves, or buy brushing with toothpaste, but these methods result in the loss of various functional properties, including increased roughness [17][18][19][20][21][22], which can facilitate the recolonization of prosthetic materials [23]. It should be emphasized that there are studies questioning the possibility of fully effective removal of microorganisms from the denture using mechanical or chemical cleaning methods [24], suggesting the possibility of penetration of C. albicans into the interior of acrylic materials [25][26][27] which indicates limited disinfection possibilities.…”

Effect of Protective Coating on Surface Properties and Candida albicans Adhesion to Denture Base Materials

“…It was reported that the threshold of R a for denture base material is 0.2 µm. At or above this level, microbial retention and plaque accumulation is expected . Results of this study showed that R a values significantly decreased with nano‐coat and Optiglaze for both acrylic materials resulting in smoother surfaces as these coating agents filled the microdefects on the resin surfaces (Fig ) .…”