Evaluation of Surface Microhardness Following Chemical and Microwave Disinfection of Commercially Available Acrylic Resin Denture Teeth
| Autor: | Vinaya Susan Varghese, Sushant Benjamin, Smitha Daniel, Nirmal Kurian, Nitasha Gandhi |
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| Rok vydání: | 2017 |
| Předmět: |
Clinical Biochemistry
lcsh:Medicine Dentistry Indentation hardness 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine stomatognathic system Medicine 030212 general & internal medicine Acrylic resin business.industry cross contamination lcsh:R Dental prosthesis vickers hardness acrylic teeth 030206 dentistry General Medicine Hardness Dentistry Section chemistry Distilled water visual_art Sodium hypochlorite Vickers hardness test visual_art.visual_art_medium Glutaraldehyde business |
| Zdroj: | Journal of Clinical and Diagnostic Research, Vol 11, Iss 5, Pp ZC87-ZC91 (2017) |
| ISSN: | 2249-782X |
| DOI: | 10.7860/jcdr/2017/27587.9944 |
| Popis: | Introduction: Denture disinfection is an indispensable procedure for preventing cross contamination and the maintenance of a healthy oral mucosa in patients rehabilitated with removable dental prosthesis. Nevertheless, they are known to cause changes in the physical and mechanical properties of denture base resins and acrylic resin denture teeth following immersion of a denture in a suitable chemical disinfectant solution or by undergoing microwave irradiation. One such mechanical property indicator for artificial tooth materials is hardness. Aim: To assess the surface hardness of acrylic resin teeth of three different commercial brands (Ivoclar, Newace, Acryrock) following chemical (2% glutaraldehyde, 1% sodium hypochlorite) and microwave disinfections. Materials and Methods: Ten specimens of each of the three commercial brands were made for control and each simulated disinfection type and stored in distilled water at room temperature for 24 hours. After water storage, specimens were immersed in 2% glutaraldehyde and 1% sodium hypochlorite (one and three cycles) at room temperature for 10 minutes. Irradiation with microwave (one and three cycles) was done in domestic microwave for three minutes with the specimens immersed in 150 ml of distilled water. The specimens were stored in distilled water at room temperature for seven days after each disinfection cycle. Vickers hardness measurements were made using a hardness indenter under a load of 50 g force for 10 seconds. Data was subjected to repeated measure twoway ANOVA test and Tukey’s test. Results: There were statistically significant differences for the variables disinfection, tooth, and cycle (p |
| Databáze: | OpenAIRE |
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