Effect of chemical disinfectants on the transverse strength of heat-polymerized acrylic resins submitted to mechanical and chemical polishing

Orsi, Iara Augusta; Andrade, Vanessa Gomes

doi:10.1016/j.prosdent.2004.07.015

Cited by 44 publications

(53 citation statements)

References 23 publications

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“…Therefore, maintaining denture cleanliness is very important for elderly patients whose resistance to infection is lowered. Currently, many kinds of denture cleaners are available; however, their efficacy as sterilization or disinfection agents is unclear 6) . The current expectation is for cleaning agents to clean simply and effectively, with no risk to human health, and with no adverse effects on the properties of the denture material 7) .…”

Section: Introductionmentioning

confidence: 99%

Bactericidal efficacy of glycine-type amphoteric surfactant as a denture cleaner and its influence on properties of denture base resins

et al. 2009

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The bactericidal efficacy of 1.00-4.50% glycine-type amphoteric surfactant (Gly) was evaluated by measuring its microorganism removal rate in denture plaque. Physical and mechanical properties such as surface roughness, color difference, and bending strength of two different denture base resins were determined before and after cleaning in Gly solutions, a commercial denture cleaner, and tap water. The microorganism removal rates of all the Gly solutions were higher than those of a commercial enzymatic denture cleaner (Polident) (p>0.05). The removal rate of Candida spp. by Polident was not significantly different from the removal rate using water. Changes in the surface roughness and color difference among the specimens were slight. There were no significant differences in the bending strengths of the two resins for all concentrations of Gly solution (p>0.05). These results suggested that glycine-type amphoteric surfactant solution may be effective as a denture cleaner in conjunction with an ultrasonic cleaning device.

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Section: Introductionmentioning

confidence: 99%

Bactericidal efficacy of glycine-type amphoteric surfactant as a denture cleaner and its influence on properties of denture base resins

et al. 2009

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“…Sammar Mohamed (1) , Moustafa Mohamed Abdel Gany (2) , Amany Ahmed Abdel Fattah (3) and Dina Mahmoud kholif…”

Section: The Effect Of Two Denture Base Materials On Microbial Colonimentioning

confidence: 99%

“…They include not only the quality of the dentures and the oral condition, but also patient related factors such as debilitating diseases as diabetes and their attitude toward dentures (2) Diabetes mellitus is one of the most prevalent diseases worldwide and is commonly found in dental patients. Patients with a diagnosis of diabetes mellitus present a higher susceptibility to infections due to a deficiency in polymorphonuclear leukocytes, as a result of vascular alterations and neuropathies (3) . An increased risk of infections has been observed with reduced salivary flow, low salivary buffering capacity (4) , and inadequate hygiene of the complete dentures (5) .…”

Section: The Effect Of Two Denture Base Materials On Microbial Colonimentioning

confidence: 99%

The Effect of Two Denture Base Materials on Microbial Colonization of Complete Dentures in Controlled Diabetic Patients

et al. 2016

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Aim:To compare between conventional heat cured Acrylic resin and Flexible thermoplastic resin denture base materials on microbial colonization of complete dentures in Controlled Diabetic patients. Material & Methods: This study included thirty completely edentulous well controlled diabetic patients which were divided into two equal groups, fifteen patients received complete dentures made of conventional heat cured acrylic resin dentures while the other fifteen patients received upper complete denture made of flexible poly amide (Bre-flex 2ndedtion) thermoplastic dentures and lower heat cured acrylic resin denture. Oral swabs for isolation of microorganisms was done with gamma sterilized disposable swabs from tuberosity area under the fitting surface of the dentures, each swab cultivated in three culture media. Statistical analysis was performed for the results of this study to evaluate the microbial colonization in each of the two groups. Results: Candida was the most common isolate in acrylic resin group and was detected in 6 cases (40%) and Streptococci were observed in 3 cases (20%). Chi square test revealed a significant difference in the percentage of Candida species were the most common isolate in breflex group and were detected in 3 cases (20%). Staph Aureus and Streptococci were observed in 2 cases each (13%). Chi square test revealed a significant difference in the percentage of cases affecting by each type of microorganisms (p<0.00001).cases affecting by each type of microorganisms by Cfu (ml)x102. Conclusion: Flexible thermoplastic resin denture is thus a more predictable treatment modality as a denture base material due to its less microbial colonization and biological reaction in addition to its better esthetic appearance.

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“…Several studies have investigated the effects of chemical denture cleaning solutions on the properties of acrylic denture base resins [12][13][14][15] . Peracini et al demonstrated that commercially available alkaline peroxide denture cleansers altered the color, increased the surface roughness, and reduced the flexural strength of heat-polymerized acrylic denture base resin 16) .…”

Section: Introductionmentioning

confidence: 99%

Influence of a new denture cleaning technique based on photolysis of H2O2 the mechanical properties and color change of acrylic denture base resin

et al. 2013

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The purpose of this study was to evaluate the influence of a disinfection technique based on photolysis of H 2 O 2 on the mechanical properties and color change of acrylic denture base resin. Resin specimens were immersed in 1 M H 2 O 2 irradiated with light-emitting diode (LED) light at 400 nm for 1 week. The immersion duration of 1 week (168 h) corresponded to performing approximately 500 times of 20-min cleaning. Hydroxyl radicals are potent oxidants and they were generated via the photolysis of H 2 O 2 . Oxidative damage caused by these radicals included reduced flexural strength and altered color for the acrylic resin. Nonetheless, the degraded flexural strength and altered color of acrylic resin after 500 times of cleaning in the disinfection system would be within clinically acceptable levels.

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Effect of chemical disinfectants on the transverse strength of heat-polymerized acrylic resins submitted to mechanical and chemical polishing

Cited by 44 publications

References 23 publications

Bactericidal efficacy of glycine-type amphoteric surfactant as a denture cleaner and its influence on properties of denture base resins

Bactericidal efficacy of glycine-type amphoteric surfactant as a denture cleaner and its influence on properties of denture base resins

The Effect of Two Denture Base Materials on Microbial Colonization of Complete Dentures in Controlled Diabetic Patients

Influence of a new denture cleaning technique based on photolysis of H2O2 the mechanical properties and color change of acrylic denture base resin

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