Abstract
Three newly prepared denture cleaner solutions from materials available in our country [namely; oxalic, citric and tartaric acids dissolved in isopropyl alcohol (5% w/v)] were studied for their effect on 110 specimens of heat cure acrylic resin prepared according to ADA Specification for 7 days, 1 month, 6 months, and 12 months, compared with Steradent denture cleaner by two techniques (immersion and brushing techniques). The concentration (5% w/v) was selected according to the results of pilot study. The results of this study showed that oxalic and tartaric acids have nearly the same effect on surface roughness in relation to Steradent by immersion technique for six months, but this result was increased to show high rough surface of samples treated by citric acid for one year. Treatment with the four solutions led to reduction in weight (0.03 mg) except citric acid (0.49 mg). Statistical analysis was performed using F–test two–sample. The results revealed that there was a significant difference at levels 1% and 5% between the brushing and immersion techniques, roughness of the surfaces, and period of using each solution. Changes in weight in relation to surface area were ranged between 0.01–0.03 mg/cm2 for Steradent and oxalic acid in immersion technique, while the result was 0.05–0.23 mg/cm2 for brushing technique of the other solutions except citric acid. Oxalic acid showed complete rem-oving of the stain within 8–10 minutes, Steradent and tartaric acid need 6–8 hours, while citric acid did not show the same result.
Highlights
Prosthesis has been identified as a source of cross contamination because of the increased risk of infection through constant exposure to debris, plaque and saliva, which harbor pathogenic organisms that adhere to prosthesis.[1]. Adequate plaque control is essential for the maintenance of a healthy oral mucosa.[2, 3] Denture cleaners are used as a popular method by denture wearers for cleaning
Patients may use proprietary cleaners, or household cleaning materials. This is in order to keep the denture free of plaque, staining and calculus.[3]. The denture cleaner’s constituents, efficiency, adverse effects and safety are very important because such denture cleaner may affect the denture surface and rough surface produced make it difficult to maintain clean surface.[4]. A smooth acrylic denture base surface is more desirable in terms of cleaning ability, and infection control due to the effectiveness of denture cleaning agents against microorganisms, since roughened surface will facilitate the retention of yeast.[4,5,6] The most commonly used diluted acidic cleaner is household vinegar
This result was increased to show high rough surface of samples treated by citric acid for one year (0.421–0.583 μm)
Summary
Prosthesis has been identified as a source of cross contamination because of the increased risk of infection through constant exposure to debris, plaque and saliva, which harbor pathogenic organisms that adhere to prosthesis.[1] Adequate plaque control is essential for the maintenance of a healthy oral mucosa.[2, 3] Denture cleaners are used as a popular method by denture wearers for cleaning. To clean their dentures, patients may use proprietary cleaners, or household cleaning materials. Oxalic acid is present in small amounts in many plants such as oxalis and spinach, and used as rust remover.[8,9,10]
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