Comparative evaluation of water sorption and solubility of two autopolymerizing soft denture liners in distilled water and artificial saliva

Jabbal, Ravudai Singh; Datta, Kusum

doi:10.4103/0976-4003.196811

Cited by 9 publications

(11 citation statements)

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“…For composites with a concentration of 12% and 14%, more than one sample showed sorption and solubility values exceeding 20 µg/mm 3 and 3 µg/mm 3 , respectively, so these materials did not meet the requirements of the ISO standard. Furthermore, up to antimicrobial filler concentration of 4%, sorption and solubility values were comparable to those registered for the available silicone soft lining materials [ 63 , 64 , 65 ]. The increase in the values of both properties should be considered as a disadvantage.…”

Section: Discussionsupporting

confidence: 69%

Effect of Silver-Emitting Filler on Antimicrobial and Mechanical Properties of Soft Denture Lining Material

et al. 2018

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Colonization of silicone-based soft lining materials by pathogenic yeast-type fungi is a common problem associated with the use of dentures. In this study, silver sodium hydrogen zirconium phosphate (SSHZP) was introduced into polydimethylsiloxane-based material as an antimicrobial filler at concentrations of 0.25, 0.5, 1, 2, 4, 6, 8, 10, 12, and 14% (w/w). The in vitro antimicrobial efficacy was investigated. Candida albicans was used as a characteristic representative of pathogenic oral microflora. Staphylococcus aureus and Escherichia coli were used as the typical Gram-positive and Gram-negative bacterial strains, respectively. The effect of filler addition on the Shore A hardness, tensile strength, tensile bond strength, sorption, and solubility was investigated. An increase in the filler concentration resulted in an increase in hardness, sorption, and solubility, and for the highest concentration, a decrease in bond strength. The favorable combination of antimicrobial efficacy with other properties was achieved at filler concentrations ranging from 2% to 10%. These composites exhibited mechanical properties similar to the material without the antimicrobial filler and enhanced in vitro antimicrobial efficiency.

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Section: Discussionsupporting

confidence: 69%

Effect of Silver-Emitting Filler on Antimicrobial and Mechanical Properties of Soft Denture Lining Material

et al. 2018

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“…The observed weight loss probably occurred because, the plasticizers are more soluble in ionic solutions than in water. 15 With the exception of Molloplast-B, all soft lining materials studied showed higher solubility in artificial saliva than in distilled water. The values obtained in this study is similar when compared with the one observed by Kazanji et al 13 High sorption and solubility of soft denture liners are associated with swelling, distortion, hardening, absorption of odors, support of bacteria, colour changes, and debonding of liners from denture bases.…”

Section: Solubility Of Viscogelmentioning

confidence: 90%

“…13 Hence an ideal material should, therefore, have no component which is soluble in saliva or water and should have a low level of absorption. 15 The limitation of this study is that, it is an in vitro study and hence some variations might be experienced when tested under in vivo conditions owing to fluctuations in the p H of saliva, varying concentrations of ions in the saliva, presence of immunoglobulin's and serum markers in the saliva, different occlusal schemes, use of disinfectants and stain removers during denture maintenance. It was a short term study, thus if it's conducted on a long term basis, there will be more clearance in the value and temperature variation could be a reason in the minor changes in the values obtained.…”

Section: Solubility Of Viscogelmentioning

confidence: 99%

Comparative Study on Water Sorption and Solubility of Three Soft Liners in Different Solutions: An in-Vitro Study.

Menon¹,

ijar²

2019

IJAR

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Two silicone based soft denture lining materials (Mollosil, Molloplast-B), and an acrylic resin based soft denture liner (Viscogel) were selected for comparative evaluation of sorption and solubility in different solutions at different time intervals. Methodology: In this study two silicone based soft denture lining materials (Mollosil, Molloplast-B), and acrylic based soft denture liner (Viscogel) were selected for comparative evaluation of sorption and solubility in different solutions at different time intervals. 50 specimens for each material: Mollosil, Molloplast-B and Viscogel were prepared using brass dies of dimensions-50mm diameter, 0.5mm thickness. The specimens were stored in different solutions (distilled water, denture cleanser and artificial saliva-acidic, basic, neutral), and tested after 1,4 and 16 weeks for sorption and solubility. Analysis of variance was used to find the significant differences between the materials at all time intervals. Result: The acrylic resin soft lining materials had higher solubility (3.920% Viscogel in acidic saliva) and absorption (3.138% Viscogel in distilled water) than Molloplast-B after 16 weeks of aging. Conclusion: The silicone based soft liner Mollosil, showed the highest percentage of sorption and solubility in artificial saliva than in distilled water, while an acrylic based Viscogel showed the highest percentage solubility in artificial saliva, and lowest percentage of sorption in distilled with the exception of Molloplast-B, which showed the highest percentage of solubility and sorption in distilled water, compared to all these soft lining materials.

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“…Silicone-based SDL material consists of polydimethylsiloxane and does not contain plasticizers. The resilience property of the silicone-based SDL is obtained from the cross-linked structure of the polymeric siloxane chain [6], [9], [10], [11]. Silicone-based SDL has better viscoelastic properties with lower permanent deformation but this material is less resilient than acrylic SDL, and this may affect patient comfort and the ability of the material to absorb mastication loads [6].…”

Section: Introductionmentioning

confidence: 99%

Influence of Thermocycling and Sealer Coating Application on Shore Hardness of Soft Denture Lining Material

Nasution

Tamin

Ariyani

et al. 2021

Open Access Maced J Med Sci

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BACKGROUND: One of the properties of the soft denture lining (SDL) material that needed to overcome the functional problems is softness. Loss of softness due to the aging process and to extend the duration of use, sealer coating was developed to maintain its softness. Sealer coating acts as mechanical barrier to provide protection against aging of SDL materials. AIM: This study aims to determine the influence of thermocycling and sealer coating application on the shore hardness of the acrylic-based and silicone-based auto-polymerizing soft denture lining materials. MATERIALS AND METHODS: Materials that were used in this study are acrylic-based auto-polymerizing SDL (Durabase Soft, Reliance Dental Manufacturing LLC, Illinois, USA) and silicone-based auto-polymerizing SDL (Mollosil, Detax GmbH, Ettlingen, Germany). In this study, we used monopoly as sealer coating for acrylic-based auto-polymerizing SDL and varnish for silicone-based auto-polymerizing SDL. Thermocycling was performed for 2000 cycles for a 2-year simulation time. For shore hardness test, a total of 40 discs shaped samples were made with a diameter of 35 mm and a thickness of 6 mm. The samples were divided into eight groups (n = 5), namely, the uncoated and non-thermocycling acrylic-based auto-polymerizing SDL, the coated and non-thermocycling acrylic-based auto-polymerizing SDL, the uncoated and thermocycling acrylic-based auto-polymerizing SDL, the coated and thermocycling acrylic-based auto-polymerizing SDL, the uncoated and non-thermocycling silicone-based auto-polymerizing SDL, the coated and non-thermocycling silicone-based auto-polymerizing SDL, the uncoated and thermocycling silicone-based auto-polymerizing SDL, and the coated and thermocycling silicone-based auto-polymerizing SDL. The hardness test was carried out using the shore A durometer. RESULTS: The obtained data were tested using the independent t-test with a significance level of p < 0.05. The results showed that there was a significant effect between coated and uncoated acrylic-based SDL group that underwent thermocycling and in the silicone-based SDL group. The study showed that the hardness value was lower in both coated acrylic-based and silicone-based SDL groups compared to the non-coated group, so it can be concluded that the sealer coating is able to protect the hardness of SDL material against aging with a thermocycling simulation. The results also showed that there was a significant effect of thermocycling on the hardness of the material both in the coated acrylic-based SDL group, the uncoated acrylic-based SDL group, and the uncoated silicone-based SDL group. Study also showed that there was no significant effect of thermocycling in the coated silicone-based SDL group. CONCLUSION: Based on the results, it can be concluded that the use of sealer coating can maintain the hardness properties of both acrylic-based SDL and silicon-based self-polymerizing SDL so that it can increase the durability of SDL materials. However, the effect of sealer coating in protecting the hardness of SDL materials against aging was more evident in the silicone-based SDL group.

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Comparative evaluation of water sorption and solubility of two autopolymerizing soft denture liners in distilled water and artificial saliva

Cited by 9 publications

References 0 publications

Effect of Silver-Emitting Filler on Antimicrobial and Mechanical Properties of Soft Denture Lining Material

Effect of Silver-Emitting Filler on Antimicrobial and Mechanical Properties of Soft Denture Lining Material

Comparative Study on Water Sorption and Solubility of Three Soft Liners in Different Solutions: An in-Vitro Study.

Influence of Thermocycling and Sealer Coating Application on Shore Hardness of Soft Denture Lining Material

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