Influence of Henna Addition on The Flexural Strength of Acrylic Denture Base Material: An In Vitro Study | ||
| Al-Azhar Journal of Dentistry | ||
| Volume 5, Issue 3, July 2018, Pages 277-283 PDF (351.64 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/adjg.2018.17191 | ||
| Authors | ||
| Mohamed Gad1; Ahmed Rahoma2; Amal Nawasra3; Mahmoud Ammar4 | ||
| 1Lecturer, Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31411, Saudi Arabia | ||
| 2Lecturer, Department of Dental Biomaterials, College of Dentistry, Al-Azhar University, Assiut Branch, P.O. Box 11117, Egypt. | ||
| 3Assistant Professor, Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31411, Saudi Arabia | ||
| 4Assistant Professor of Removable Prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Assiut Branch. Egypt | ||
| Abstract | ||
| Purpose : The purpose of this study was to evaluate the flexural strength of the acrylic denture base material modified with different concentrations of henna. Materials and Methods: Sixty heat polymerized acrylic resin specimens were fabricated in dimensions 65×10×2.5 mm according to ADA specifications #12. Specimens were divided according to henna concentrations into 6 groups. One control group without henna addition while the other five groups were processed by adding henna in concentrations 1%, 2.5%, 5%, 7.5% and 10% of acrylic powder. After processing, specimens were finished, polished, and stored in distilled water at 37 oC for 48±2 hours prior to testing. The three-point bending test was used to measure the flexural strength using universal testing machine. The morphology of the fractured specimens was studied under a scanning electron microscopy (SEM). The independent sample t-test was used and p ≤ 0.05 was considered statistically significant. Results: The flexural strength significantly decreased with henna addition to PMMA denture base material ( P<0.05), and this decrease was in proportional to henna concentrations. Conclusion: The flexural strength of acrylic denture base material negatively was affected by henna addition. | ||
| Keywords | ||
| Acrylic denture base; henna; polymethyl methacrylate; flexural strength | ||
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