Strength of Denture Base Resins Repaired with Auto‐ and Visible Light‐Polymerized Materials

Faot, Fernanda; Silva, Wander José da; Rosa, Rosena Santos da; Cury, Altair Antoninha Del Bel; Garcia, Renata Cunha Matheus Rodrigues

doi:10.1111/j.1532-849x.2009.00470.x

Cited by 31 publications

(41 citation statements)

References 28 publications

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“…12,15 Therefore, the investigation of nano-ZrO 2 effect on C. albicans adhesion is essential. This study was conducted using cold-cured acrylic resin as a repair material (repair group), which could affect the mechanical behavior of denture repair and its ability to provide antifungal activity, while the other intact cold-cured group was used for removable prosthesis fabrication.…”

Section: Discussionmentioning

confidence: 99%

“…11 Denture base fracture while in use is the most frequent problem, and it requires denture replacement or repair. 12 A new denture fabrication is costly and time consuming, so denture repair is usually the preferred option. To restore the original shape and strength, there are several repair resins available with enhanced laboratory and clinical properties.…”

Section: Introductionmentioning

confidence: 99%

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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: Discussionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…[10][11][12][13][14] However, distortion or warpage due to reheating and timeconsuming laboratory procedures are drawbacks to their use as a repair material. 14,15 Therefore, autopolymerized acrylic resin is preferred over heat-polymerized acrylic resin for repair.…”

Section: Gad Et Almentioning

confidence: 99%

Influence of incorporation of ZrO2 nanoparticles on the repair strength of polymethyl methacrylate denture bases

Gad¹,

Rahoma

Al‐Thobity³

et al. 2016

IJN

132

219

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“…Heat-polymerized acrylic and autopolymerizing resins are used in the repair processes of denture base materials 20) . Faot et al 23) reported that denture base acrylic resins repaired with autopolymerizing resins have a lower flexural strength than those of heat-polymerized acrylic resins, while Rached et al 24) reported that they have similar flexural strengths. In the present study, the highest repair strength was found in the PR group, and the lowest repair strength was in the AP group.…”

Section: Discussionmentioning

confidence: 99%

Effect of repair resin type and surface treatment on the repair strength of polyamide denture base resin

Gundogdu

Yanıkoğlu

Bayındır

et al. 2015

Dental Materials Journal

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The purpose of the present study was to evaluate the effects of different repair resins and surface treatments on the repair strength of a polyamide denture base material. Polyamide resin specimens were prepared and divided into nine groups according to the surface treatments and repair materials. The flexural strengths were measured with a 3-point bending test. Data were analyzed with a 2-way analysis of variance, and the post-hoc Tukey test (α=0.05). The effects of the surface treatments on the surface of the polyamide resin were examined using scanning electron microscopy. The repair resins and surface treatments significantly affected the repair strength of the polyamide denture base material (p<0.05); however, no significant differences were observed interaction between the factors (p>0.05). The flexural strength of the specimens repaired with the polyamide resin was significantly higher than that of those repaired with the heat-polymerized and autopolymerizing acrylic resins.

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Strength of Denture Base Resins Repaired with Auto‐ and Visible Light‐Polymerized Materials

Abstract: Denture base acrylic resins repaired with the same resin they were made of showed greater fracture strength.

Cited by 31 publications

References 28 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

Influence of incorporation of ZrO<sub>2</sub> nanoparticles on the repair strength of polymethyl methacrylate denture bases

Effect of repair resin type and surface treatment on the repair strength of polyamide denture base resin

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