Non-Thermal O2 Plasma Efficacy on C. albicans and Its Effect on Denture Base Resin Color

Denture stomatitis is a disease involving C. albicans, which can affect elderly and immuno-compromised people. To avoid any recurrence of this pathology, it is necessary to treat patients regularly and disinfect dentures. However, the denture cleansers’ efficacy is not optimal and often leads to adverse color effects on the denture base resins. The aim of this study was to investigate the efficacy of a low-pressure non-thermal O2 plasma (NTP) treatment on C. albicans seeded on ProBase®Hot resin (Ivoclar Vivadent). The viability reduction of C. albicans was assessed by colony forming units (CFU) analysis and by scanning electron microscopy (SEM). The effect of repeated treatments on the resin color was evaluated by spectrophotometry. The resin samples were placed in a sealed bag in which O2 plasma was generated in low-pressure conditions. The results showed that a 120-min O2 NTP treatment led to a 6-log reduction of C. albicans viability (p < 0.05) and to yeasts’ major alterations observed by SEM. Furthermore, significant slight color changes of the resin (∆E00 = 1.33) were noted only after six plasma treatments (p < 0.05). However, the denture aesthetic was preserved, as the color changes were not perceptible and remained below the acceptability threshold (∆E00 < 4).

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Effect of Denture Cleansers on Surface Roughness and Flexural Strength of Heat Cure Denture Base Resin-An In vitro Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2017/27307.10483 ◽

2017 ◽

Author(s):

Prabal Sharma

Keyword(s):

Surface Roughness ◽

Flexural Strength ◽

In Vitro Study ◽

Vitro Study ◽

Denture Base ◽

Heat Cure ◽

Base Resin ◽

Denture Cleansers ◽

Denture Base Resin

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Color Stability and Surface Properties of PMMA/ZrO2 Nanocomposite Denture Base Material after Using Denture Cleanser

International Journal of Biomaterials ◽

10.1155/2021/6668577 ◽

2021 ◽

Vol 2021 ◽

pp. 1-10

Author(s):

Mohammed M. Gad ◽

Reem Abualsaud ◽

Shaimaa M. Fouda ◽

Ahmed Rahoma ◽

Ahmad M. Al-Thobity ◽

...

Keyword(s):

Surface Roughness ◽

Adverse Effects ◽

Base Material ◽

Color Stability ◽

Zro2 Nanoparticles ◽

Distilled Water ◽

Denture Base ◽

Base Resin ◽

Denture Cleansers ◽

Denture Base Resin

Statement of Problem. Novel polymethyl methacrylate (PMMA) containing zirconium dioxide nanoparticles (nano-ZrO2) was suggested as a denture base material but there is a lack of information regarding denture cleanser effects. Objectives. This study aimed to evaluate denture cleanser effects on color stability, surface roughness, and hardness of PMMA denture base resin reinforced with nano-ZrO2. Materials and Methods. A total of 420 specimens were fabricated of unreinforced and nano-ZrO2 reinforced acrylic resin at 2.5% and 5%, resulting in 3 main groups. These groups were further subdivided (n = 10) according to immersion solution (distilled water, Corega, sodium hypochlorite, and Renew) and immersion duration. Surface roughness, hardness, and color were measured at baseline (2 days-T0) in distilled water and then after 180 and 365 days of immersion (T1 & T2) in water or denture cleansing solutions. Data was collected and analyzed using two-way ANOVA followed by Bonferroni post hoc test (α = 0.05). Results. Surface roughness increased significantly after denture cleanser immersion of unmodified and nano-ZrO2-modified PMMA materials while hardness decreased ( P < 0.001 ). The denture cleansers significantly affected the color of both PMMA denture bases ( P < 0.001 ). The immersion time in denture cleansers significantly affected all tested properties ( P < 0.001 ). Within denture cleansers, NaOCl showed the highest adverse effects ( P < 0.05 ) while Renew showed the least adverse effects. Conclusion. Denture cleansers can significantly result in color change and alter the surface roughness and hardness of denture base resin even with ZrO2 nanoparticles addition. Therefore, they should be carefully used.

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Efficacy of commercial and household denture cleansers against Candida albicans adherent to acrylic denture base resin: An in vitro study

Indian Journal of Dental Research ◽

10.4103/0970-9290.99036 ◽

2012 ◽

Vol 23 (1) ◽

pp. 39 ◽

Cited By ~ 10

Author(s):

MNanditha Kumar ◽

KN Raghavendra Swamy ◽

HM Thippeswamy ◽

AnilKumar Gujjari

Keyword(s):

Candida Albicans ◽

In Vitro Study ◽

Vitro Study ◽

Denture Base ◽

Base Resin ◽

Denture Cleansers ◽

Denture Base Resin

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Evaluation of Destaining Property of Denture Cleansers on Heat-cured Denture Base Resins using Common Indian Food Stains

International Journal of Prosthodontics and Restorative Dentistry ◽

10.5005/jp-journals-10019-1177 ◽

2017 ◽

Vol 7 (2) ◽

pp. 53-59

Author(s):

Sandhya Gopalakrishnan ◽

KR Kashinath

Keyword(s):

Sodium Hypochlorite ◽

Immersion Time ◽

High Impact ◽

Sodium Perborate ◽

Denture Base ◽

Base Resin ◽

Density Values ◽

Indian Food ◽

Denture Cleansers ◽

Denture Base Resin

ABSTRACT Aim To compare the efficacy of two different denture cleansers in removing tea and paan stains from conventional and high-impact heat-cured denture base resins and also to find out the duration of contact required by the dentures with cleansers, for best results. Materials and methods A total of 80 specimens (40 conventional and 40 high impact) were fabricated. The samples were stained with tea and paan solutions. Stained samples were subjected to immersion in denture cleansers, namely Dentural (sodium hypochlorite) and Fitty Dent (sodium perborate). Optical density values were measured using spectrophotometer at prestain, poststain, postcleansing 15 minutes, postcleansing 8 hours, and post cleansing brushing. The data were analyzed statistically. Results High-impact denture base resins stained more than the conventional denture base resin. Staining potential of paan solution was higher than that of tea solution. Dentural (sodium hypochlorite) is superior to Fitty Dent (sodium perborate) in the removal of stains at postcleaning 15 minutes and 8 hours immersion time in both the denture bases and 8 hours immersion time is better. Conclusion Both cleansers were effective in removing stains from denture surface, and Dentural is a better cleanser than Fitty Dent for all the postcleansing stages. Clinical significance Adequate removal of extrinsic stains from denture surface is essential for the health of the supportive area. The clinician must suggest an acceptable cleansing regime to the patient. How to cite this article Gopalakrishnan S, Kashinath KR, Mathew P. Evaluation of Destaining Property of Denture Cleansers on Heat-cured Denture Base Resins using Common Indian Food Stains. Int J Prosthodont Restor Dent 2017;7(2):53-59.

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