The effects of silane-SiO2 nanocomposite films on Candida albicans adhesion and the surface and physical properties of acrylic resin denture base material

Yodmongkol, Sirasa; Chantarachindawong, Rojcharin; Thaweboon, Sroisiri; Thaweboon, Boonyanit; Amornsakchai, Taweechai; Srikhirin, Toemsak

doi:10.1016/j.prosdent.2014.06.019

Cited by 40 publications

(48 citation statements)

References 38 publications

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“…5,6 Therefore, many attempts have been made to reduce C. albicans adhesion and subsequent colonization on the denture base through the use of a variety of antifungal agents, but this treatment method has proven to be a short-term therapy and not always effective. 2,7 Moreover, many approaches to overcoming fungal adhesion to a denture base have been taken, such as surface modification by using different coatings [8][9][10][11] or incorporating an antifungal additive into a PMMA denture base. 11 Denture base fracture while in use is the most frequent problem, and it requires denture replacement or repair.…”

Section: Introductionmentioning

confidence: 99%

Inhibitory effect of zirconium oxide nanoparticles on Candida albicans adhesion to repaired polymethyl methacrylate denture bases and interim removable prostheses: a new approach for denture stomatitis prevention

Gad¹,

Al‐Thobity²,

Shahin³

et al. 2017

IJN

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Background Despite drawbacks, cold-cured acrylic resin is still the most common material used in denture repair. Zirconia nanoparticles were among the reinforcements added to increase the strength of the resin. The effect on Candida due to the addition of zirconia nanoparticles to the resin has not been investigated. Purpose The aim of this study was to evaluate the effect of zirconia nanoparticles added to cold-cured acrylic resin on Candida albicans adhesion. Materials and methods A total of 120 acrylic resin specimens with dimensions measuring 22×10×2.5 mm 3 were prepared and divided into two equal groups. One group (repair) comprised heat-polymerized specimens that were sectioned at the center and prepared to create a 2 mm repair area that was repaired with cold-cured resin reinforced with 0% wt, 2.5% wt, 5% wt, and 7.5% wt zirconia nanoparticles. The second group contained intact cold-cured acrylic resin specimens reinforced with 0% wt, 2.5% wt, 5% wt, and 7.5% wt zirconia nanoparticles. Specimens were incubated at 37°C in artificial saliva containing C. albicans , and the effect of zirconia nanoparticles on C. albicans was assessed using two methods: 1) a slide count method and 2) a direct culture test. Variations in the number of living Candida were observed in relation to the different concentrations of zirconia nanoparticles. Analysis of variance (ANOVA) and post hoc Tukey’s tests were performed for data analysis. If the P -value was ≤0.05, then the difference was considered as statistically significant. Results It was found that C. albicans adhesion to repaired specimens was significantly decreased by the addition of zirconia nanoparticles ( P <0.00001) in comparison with the control group. Intact cold-cured groups and groups repaired with cold-cured resin reinforced with 7.5% wt zirconia nanoparticles showed the lowest Candida count. Tukey’s test showed a significant difference between the repaired group and the intact cold-cured group, while the later demonstrated a lower Candida count. Conclusion The addition of zirconia nanoparticles to cold-cured acrylic resin is an effective method for reducing Candida adhesion to repaired polymethyl methacrylate (PMMA) denture bases and cold-cured removable prosthesis. Clinical significance Based on the results of the current study, zirconia nanoparticles have an antifungal effect, which could be incorporated in the repair material for repairing denture bases and in PMMA removable prostheses as a possible approach for denture stomatitis prevention.

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Section: Introductionmentioning

confidence: 99%

Inhibitory effect of zirconium oxide nanoparticles on Candida albicans adhesion to repaired polymethyl methacrylate denture bases and interim removable prostheses: a new approach for denture stomatitis prevention

Gad¹,

Al‐Thobity²,

Shahin³

et al. 2017

IJN

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“…Several studies have therefore focused on modifying the denture base to be hydrophilic to prevent hydrophobic interaction 11,14) . One promising approach is the use of coating materials because these do not change the bulk properties of the denture base material but can modify the surface properties 15,16) . Although a previous study indicated that a silica coating agent can make the denture base material hydrophilic 17) , the durability of the agent has not been clarified.…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic nano-silica coating agents with platinum and diamond nanoparticles for denture base materials

Yoshizaki

Akiba

Inokoshi

et al. 2017

Dental Materials Journal

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Preventing microorganisms from adhering to the denture surface is important for ensuring the systemic health of elderly denture wearers. Silica coating agents provide high hydrophilicity but lack durability. This study investigated solutions to improve the durability of the coating layer, determine an appropriate solid content concentration of SiO2 in the silica coating agent, and evaluate the effect of adding platinum (Pt) and diamond nanoparticles (ND) to the agent. Five coating agents were prepared with different SiO2 concentrations with/without Pt and ND additives. The contact angle was measured, and the brush-wear test was performed. Scanning electron microscopy was used to investigate the silica coating layer. The appropriate concentration of SiO2 was found to be 0.5-0.75 wt%. The coating agents with additives showed significantly high hydrophilicity immediately after coating and after the brush-wear test. The coating agents with/without additives formed a durable coating layer even after the brush-wear test.

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“…The coated specimens in this study were sufficiently covered by a nanocomposite film containing nano-sized inorganic fillers that were well dispersed without agglomeration. Yodmongkol et al 18) reported that application of a SiO2-nanocomposite film successfully increased the hardness of acrylic resin denture base material. The present results confirmed that addition of a SiO 2-nanocomposite film increased the surface hardness of CAD/CAM composite resin blocks, suggesting that such a coating might enhance wear resistance.…”

Section: Discussionmentioning

confidence: 99%

“…SiO2 coating has been also used to resist Candida albicans adhesion to acrylic resin denture base by changing the hydrophilic surface properties 16) . Recently, SiO2-nanocomposite film-coating technology was introduced for dental materials, e.g., denture base or artificial tooth materials 17,18) . These …”

Section: Introductionmentioning

confidence: 99%

SiO2-nanocomposite film coating of CAD/CAM composite resin blocks improves surface hardness and reduces susceptibility to bacterial adhesion

et al. 2017

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Composite resin blocks for computer-aided design/computer-aided manufacturing (CAD/CAM) applications have recently become available. However, CAD/CAM composite resins have lower wear resistance and accumulate more plaque than CAD/CAM ceramic materials. We assessed the effects of SiO2-nanocomposite film coating of four types of CAD/CAM composite resin blocks: Cerasmart, Katana Avencia block, Lava Ultimate, and Block HC on surface hardness and bacterial attachment. All composite blocks with coating demonstrated significantly greater Vickers hardness, reduced surface roughness, and greater hydrophobicity than those without coating. Adhesion of Streptococcus mutans to the coated specimens was significantly less than those for the uncoated specimens. These reduced levels of bacterial adherence on the coated surface were still evident after treatment with saliva. Surface modification by SiO2-nanocomposite film coating has potential to improve wear resistance and susceptibility to plaque accumulation of CAD/CAM composite resin restorations.

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The effects of silane-SiO2 nanocomposite films on Candida albicans adhesion and the surface and physical properties of acrylic resin denture base material

Cited by 40 publications

References 38 publications

Inhibitory effect of zirconium oxide nanoparticles on <em>Candida albicans</em> adhesion to repaired polymethyl methacrylate denture bases and interim removable prostheses: a new approach for denture stomatitis prevention

Inhibitory effect of zirconium oxide nanoparticles on <em>Candida albicans</em> adhesion to repaired polymethyl methacrylate denture bases and interim removable prostheses: a new approach for denture stomatitis prevention

Hydrophilic nano-silica coating agents with platinum and diamond nanoparticles for denture base materials

SiO<sub>2</sub>-nanocomposite film coating of CAD/CAM composite resin blocks improves surface hardness and reduces susceptibility to bacterial adhesion

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