Comparison of Tensile Bond Strength of Soft Liners to an Acrylic Resin Denture Base with Various Curing Methods and Surface Treatments

Haghi, Hamidreza Rajati; Shiehzadeh, Masoud; Gharechahi, Jafar; Nodehi, Davood; Karazhian, Asad

doi:10.11607/ijp.6272

Cited by 10 publications

(8 citation statements)

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“…It was found that the bonding of the silicone based-liner to the acrylic-resin was improved by the addition of a commercial primer containing methyl ethyl ketone and dichloromethane solvent [12] . Surface treatment with the monomer showed an increase in the acrylic resin soft liner's bond strengths, but not for the silicone-based-soft liners [13] . On the other hand, sandblasting had a weakening effect on the bond.…”

Section: Introductionmentioning

confidence: 83%

Peel bond strength between a silicone-based soft liner and a heat-cured acrylic resin denture base reinforced with three concentrations of metal oxide nanoparticles

Najjar

Baraka

Shoeib

2021

Egyptian Dental Journal

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Purpose: To evaluate the effect of incorporation of 0.1%, 0.3%, and 0.5% concentrations of titanium oxide, aluminum oxide, and silica nanoparticles in the heat-cured acrylic resin denture base on the peel bond strength to a silicone denture liner. Methods: A total number of 100 heat-cured acrylic resin samples were prepared and classified into a control group and three groups according to the type of nanoparticle. Each group was classified into three subgroups according to the concentration of the nanoparticle (n=10). A Silicone based-soft liner was added over the acrylic resin specimens, and the peel bond strength was measured using the peeling bond strength test at an angle of 90°. Statistical analysis was done using a Two-way ANOVA test for interactions between peel bond strength and the different nanoparticle materials and their concentrations. Results: Two-way ANOVA showed that the three nanoparticles and different concentrations did not affect the peel bond strength. Conclusion: The nanoparticles in this study were not effective in increasing peel bond strength at the studied concentrations.

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Section: Introductionmentioning

confidence: 83%

Peel bond strength between a silicone-based soft liner and a heat-cured acrylic resin denture base reinforced with three concentrations of metal oxide nanoparticles

Najjar

Baraka

Shoeib

2021

Egyptian Dental Journal

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“…On the seventh day, however, the results were not significantly different; this can be due to the releasing of the EO and increasing of the elasticity with time. This enhancement is because of the increase of the bond strength due to the water absorption in the tissue conditioner's matrix [ 41 ]. Comprehensively, the incorporation of the EO resulted in a significant decrease of elastic modulus in the tissue conditioner, but its effect was not significant on the other days.…”

Section: Discussionmentioning

confidence: 99%

Characterization and Physical and Biological Properties of Tissue Conditioner Incorporated with Carum copticum L.

Hejazi

Zareshahrabadi

Ashayeri

et al. 2021

BioMed Research International

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Aim. One of the main problems in dentistry is the injury caused by the long-term application of an ill-fitting denture. The existence of multiple microorganisms along with the susceptibility of the tissue conditioners to colonize them can lead to denture stomatitis. This study is aimed at developing a tissue conditioner incorporated with Carum copticum L. (C. copticum L.) for the effective treatment of these injuries. Materials and Methods. The Carum copticum L. essential oil composition was determined by gas chromatography-mass (GC-mass) spectrometry. The antimicrobial activity of the essential oil against the standard strains of bacterial and fungal species was determined by broth microdilution methods as suggested by the Clinical and Laboratory Standards Institute (CLSI). The physical and chemical properties of the prepared tissue conditioner were investigated by viscoelasticity, FTIR assays, and the release study performed. Furthermore, the antibiofilm activity of the Carum copticum L. essential oil-loaded tissue conditioner was evaluated by using the XTT reduction assay and scanning electron microscopy (SEM). Results. The main component of the essential oil is thymol, which possesses high antimicrobial activity. The broth microdilution assay showed that the essential oil has broad activity as the minimum inhibitory concentration was in the range of 32-128 μg mL-1. The viscoelasticity test showed that the essential oil significantly diminished the viscoelastic modulus on the first day. The FTIR test showed that Carum copticum L. essential oil was preserved as an independent component in the tissue conditioner. The release study showed that the essential oil was released in 3 days following a sustained release and with an ultimate cumulative release of 81%. Finally, the Carum copticum L. essential oil exhibited significant activity in the inhibition of microbial biofilm formation in a dose-dependent manner. Indeed, the lowest and highest amounts of biofilm formation on the tissue conditioner disks are exhibited in the Streptococcus salivarius and Candida albicans by up to 22.4% and 71.4% at the 64 μg mL-1 concentration of C. copticum L. with a statistically significant difference ( P < 0.05 ). Conclusion. The obtained results showed that the Carum copticum L. essential oil-loaded tissue conditioner possessed suitable physical, biological, and release properties for use as a novel treatment for denture stomatitis.

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“…It is a colorless, clear liquid at room temperature and miscible with water at any ratio. Acrylic acid is miscible with water at any proportion, and can be miscible with MMA liquid by way of emulsion polymerization reactions 37,38) . In this study, acrylic acid was first mixed with the NAg solvent and then the NAg suspended in acrylic acid was added to the denture base, which did not only increase the dispersion of the NAg in the denture base but also reduced the generation of bubbles, ensuring appropriate mechanical properties of the resulting denture base.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, the aim of our study was to use acrylic acid, which is an important raw material for synthetic resin monomers 38) , as an amphiphilic intermediate medium to facilitate equal distributions of introduced NAg solutions into denture bases for preparing a new type of NAg solution (NS)/polymer Methyl methacrylate denture base (NS/PMMA) and comparing it with the traditional denture base and with the denture base fabricated by adding NAg powder with the monomer powder in terms of surface morphology, mechanical strength, antimicrobial activity, anti-aging performance, cytotoxicity and biocompatibility.…”

Section: Introductionmentioning

confidence: 99%

Characterization and evaluation of a novel silver nanoparticles-loaded polymethyl methacrylate denture base: <i>In vitro</i> and <i>in vivo</i> animal study

Sun

Wang²,

Wang³

et al. 2021

Dent. Mater. J.

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The aim of this study was to optimize the preparation method of polymethyl methacrylate (PMMA) denture base loaded with nano silver (NAg), to more effectively and safely impart sustainable antibacterial functions. NAg solution was synthetized and mixed with acrylic acid and methyl methyacrylate (MMA) monomer in order to prepare a new type of NAg solution (NS)/polymer methyl methacrylate denture base specimens (NS/PMMA). The surface morphology, mechanical strength, antimicrobial activity, anti-aging performance, cytotoxicity and biocompatibility of NS/PMMA denture base were evaluated in comparison with specimens fabricated using traditional NAg adding methods and NAg-free denture base. The aesthetic characteristics and mechanical strength of NS/ PMMA denture base met the clinical application requirements. Meanwhile, NS/PMMA denture base showed better antibacterial activity, anti-aging properties, no cytotoxicity and displayed exceptional biocompatibility. NS/PMMA denture base thus has great potential for clinical application.

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Comparison of Tensile Bond Strength of Soft Liners to an Acrylic Resin Denture Base with Various Curing Methods and Surface Treatments

Cited by 10 publications

References 0 publications

Peel bond strength between a silicone-based soft liner and a heat-cured acrylic resin denture base reinforced with three concentrations of metal oxide nanoparticles

Peel bond strength between a silicone-based soft liner and a heat-cured acrylic resin denture base reinforced with three concentrations of metal oxide nanoparticles

Characterization and Physical and Biological Properties of Tissue Conditioner Incorporated with Carum copticum L.

Characterization and evaluation of a novel silver nanoparticles-loaded polymethyl methacrylate denture base: <i>In vitro</i> and <i>in vivo</i> animal study

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