Influence of Henna Addition on The Flexural Strength of Acrylic Denture Base Material: An In Vitro Study

Authors

Mohamed Gad, Lecturer, Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31411, Saudi Arabia
Ahmed Rahoma, Lecturer, Department of Dental Biomaterials, College of Dentistry, Al-Azhar University, Assiut Branch, P.O. Box 11117, Egypt.Follow
Amal Nawasra, Assistant Professor, Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31411, Saudi Arabia
Mahmoud Ammar, Assistant Professor of Removable Prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Assiut Branch. EgyptFollow

Document Type

Original Study

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

How to Cite This Article

Gad, Mohamed; Rahoma, Ahmed; Nawasra, Amal; and Ammar, Mahmoud (2018) "Influence of Henna Addition on The Flexural Strength of Acrylic Denture Base Material: An In Vitro Study," Al-Azhar Journal of Dentistry: Vol. 5: Iss. 3, Article 7.
DOI: https://doi.org/10.21608/adjg.2018.17191

Subject Area

Restorative Dentistry Issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry)