Evaluation of the effect of some denture cleansers on the colour of acrylic resin denture base materials

Kazanji, Munther N; Ahmad, Zina M

doi:10.33899/rden.2004.164964

Cited by 8 publications

(13 citation statements)

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“…This results come in agreement with the finding of Bagheri etal and others (16,17) in that staining solution, and immersion time were significant factors that affect the color stability. This result disagree with the finding of Kazanji etal (13) in that the color change of acrylic specimens resulting from their immersion in water was found to be insignificant, also acidic denture cleansers acetic acid (vinegar )were shown to affect insignificantly the color of acrylic resin materials. ( 6 -9 ).…”

Section: Color Change Of Fixed Crown and Bridges Facingcontrasting

confidence: 97%

“…Then each group were subdivided into four subgroups depending on the organic acid solution that used, Group I (control): specimens were immersed in distilled water, according to Amirican United State Foods and Drug Administration (FDA) water chosen to simulate the oral environment provided by saliva (3) . Group II: speci-mens immersed in 6% (vinegar) acetic acid, acetic acid in 6% used as denture cleanser (13). Group III: specimens immersed in 2% citric acid, while Group IV: specimens immersed in 2% lactic acid to simulate the beverage in candy, syrup and fruit (3) .…”

Section: Methodsmentioning

confidence: 99%

“…Citric acid is added to many soft drinks and candies for flavor (3,12) . In dentistry acetic acid, and citric acid are used as chemical denture cleanser (13) .…”

Section: Effect Of Organic Acid Solutions On Color Change Of Acrylic mentioning

confidence: 99%

“…The results show that the mean value of the opacity of the specimens in the four tested groups were increased after immersion. The increased in the opacity of the resin specimens in control Group I (immersed in distilled water) can be explain in that the polymethyl methacrylate acrylic resins were hydrophilic materials (13) . Water sorption has detrimental effect on the color stability (18) .…”

Section: Color Change Of Fixed Crown and Bridges Facingmentioning

confidence: 99%

“…The increased in the opacity of the resin specimens that immersed in organic acids Group II (immersed in vinegar, acetic acid), Group III (immersed in citric acid) and Group IV (immersed in lactic acid) can be explain in that staining susceptibility of resin might be attributed to their degree of water sorption and hydrophilicity of the matrix resin. If the resin can absorb water , then it is also able to absorb other fluids, which results in its discoloration (13,17). The acidic solution affects degradation of resin materials.…”

Section: Color Change Of Fixed Crown and Bridges Facingmentioning

confidence: 99%

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Effect of Organic Acid Solutions on Color Change of Acrylic Resin Facing For Fixed Crowns and Bridges

Rejab¹

2008

RDENTJ

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Aim:To evaluate the effect of the organic acid solution on color stability of the facing heat-cured acrylic resin. Materials and methods: Two heat-cured facing acrylic resins were used in this study. Sixty four rectangular shape specimens were prepared to evaluate the color changes of the heat-cured acrylic resin after immersion in three organic acids (acetic, citric and lactic acids). The specimens were divided into two groups according to tested resin materials, and then subdivided into four tested groups according to immersion solution, eight specimens for each subgroup. The assessment of color property (opacity) done by using ultra-violet visible spectrophotometer at wavelength 345 nm. Mean values were compared statistically with one way analysis of variance (ANOVA) followed by Duncan , s multiple range test to determine the significant difference among the tested groups at (p<0.05) level of significance. Results: The results showed that there is a significant difference of the means value of the color change among the four tested groups for both tested materials for two different immersion periods, but there is no significant difference of color change between tested materials. Specimens immersed in acetic acid have a higher value than that immersed in other organic acids. Conclusion: The result of this study show that immersion in organic acids for different immersion periods had a significant effect on color stability of the facing heat-cured acrylic resin cured acrylic resin .

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Section: Color Change Of Fixed Crown and Bridges Facingcontrasting

confidence: 97%

Section: Methodsmentioning

confidence: 99%

“…Citric acid is added to many soft drinks and candies for flavor (3,12) . In dentistry acetic acid, and citric acid are used as chemical denture cleanser (13) .…”

Section: Effect Of Organic Acid Solutions On Color Change Of Acrylic mentioning

confidence: 99%

Section: Color Change Of Fixed Crown and Bridges Facingmentioning

confidence: 99%

Section: Color Change Of Fixed Crown and Bridges Facingmentioning

confidence: 99%

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Effect of Organic Acid Solutions on Color Change of Acrylic Resin Facing For Fixed Crowns and Bridges

Rejab¹

2008

RDENTJ

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The effect of immersion cleansers on gloss, colour and sorption of acetal denture base material

Polyzois

Niarchou²,

Ntala³

et al. 2012

Gerodontology

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doi: 10.1111/j.1741‐2358.2012.00657.x The effect of immersion cleansers on gloss, colour and sorption of acetal denture base material Objective: To study the effect of peroxide and hypochlorite cleansers on gloss, colour and sorption of acetal denture resins. Materials and methods: Pink acetal and thermoplastic acrylic resins were evaluated. Thirty‐five specimens 39 × 39 × 1.8 mm of each resin were prepared. Each group of specimens (n = 7) was then immersed into cleansers for 100 days. Group I immersed in tap water, Group II in Corega Extradent for 5 min, Group III in Corega Extradent for 8 h, Group IV in NitrAdine™ Seniors for 15 min and Group V in NaOCl 5.25%. Gloss, colour and weight measurements were taken initially and after 100 days. Data subjected to two‐way anova and Tukey’s test at α = 0.05. Results: Acrylic resin showed reductions of glossiness from −5 to −15 and acetal from −0.2 to −6. Colour changes (ΔΕ*) ranged from 2.64 to 7.64 for acrylic and 2.77 to 26.54 for acetal resin. Sorption for acrylic ranged from 11.64 to 17.06 μg/mm3 and 9.18 to 24.79 μg/mm3 for acetal resin. The results of (ΔΕ*) and sorption showed an interaction between denture resins and cleansers. Conclusions: The gloss of acetal resin was less affected by water, peroxides and NaOCl 5.25% compared with acrylic resin. Acetal resin showed clinically acceptable (ΔΕ*) whereas acrylic resin unacceptable ones for water and peroxide solutions. The immersion of acetal resin in NaOCl 5.25% showed clinically unacceptable (ΔΕ*) and higher sorption and should be avoided or should be managed with care.

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Antifungal Effect: Comparison of Commercial Denture Cleansers and Microwave Energy

Kassab¹,

Mustafa²,

Hasan³

2009

RDENTJ

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Aims: To evaluate the ability of commercial denture cleanser on decreasing Candida albicans biofilm and comparing this with microwave sterilization technique on heat cured acrylic resin denture base material which was cured by two different techniques. Materials and Methods: thirty two samples of heat cured acrylic resin denture base material had been used, half of them was cured by conventional water bath technique, and the other half by microwave technique. A simple method to measure Candida biofilm activity using pH change of Stomastat. Modified Sabouraud broth developed and used to evaluate the efficacy of the following denture cleansers: Chlorhexidine 0.2% and sodium hypochlorite 0.5%, and microwave sterilization on Candida albicans biofilm. The initial number of yeasts inoculated was correlated with pH value of Stomastat after 24 hours incubation period. Results: The acrylic resin samples that cured by conventional water bath technique were most effectively disinfected by chlorhexidine 0.2%. This demonstrated by increasing the pH value of Stomastat significantly than the control group. The same result was obtained with those samples which were cured by microwave oven. The initial number of Candida albicans cells in Stomastat was significantly decreased than the control group after treatment of acrylic samples with denture cleansers and microwave sterilization technique, while for those samples that cured by microwave technique the least number was obtained after treatment with chlorhexidine 0.2%. Conclusion: Both of chlorhexidine 0.2% and sodium hypochlorite 0.5% and microwave technique had the ability to disinfect acrylic samples that cured by water bath and microwave techniques effectively. However, chlorhexidine 0.2% was the most effective one.

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Evaluation of the effect of some denture cleansers on the colour of acrylic resin denture base materials

Cited by 8 publications

References 1 publication

Effect of Organic Acid Solutions on Color Change of Acrylic Resin Facing For Fixed Crowns and Bridges

Effect of Organic Acid Solutions on Color Change of Acrylic Resin Facing For Fixed Crowns and Bridges

The effect of immersion cleansers on gloss, colour and sorption of acetal denture base material

Antifungal Effect: Comparison of Commercial Denture Cleansers and Microwave Energy

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