Colour Stability, Flexural Modulus, and Toughness of PMMA Denture Base Resin Modified with Silver Nano-Particles and Henna Fillers | ||
| Al-Azhar Journal of Dental Science | ||
| Article 3, Volume 25, Issue 1, January 2022, Pages 15-22 PDF (537 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajdsm.2021.100560.1255 | ||
| Authors | ||
| Mostafa I Fayad* 1; Gamal Mokhtar Alwafi2; Ramy Abdallah Abdelrahim3; Ahmed Atef Shon4 | ||
| 1Associate Professor, Department of Substitutive Dental Science, College of Dentistry, Taibah University, Saudi Arabia. Assistant Professor, Department of Removable Prosthodontics, Faculty of Dental Medicine, Al-Azhar University. | ||
| 2Assistant lecturer of Removable Prosthodontics, Department of Removable Prosthodontics, Faculty of Dentistry, Sert University, Libya | ||
| 3Assistant Professor of Dental Biomaterials, Faculty of Dental Medicine , (Cairo, Boys), Al-Azhar university. | ||
| 4Assistant Professor of Removable Prosthodontics, Department of Removable Prosthodontics, Faculty of Dental medicine, Al-Azhar University | ||
| Abstract | ||
| Objective: This study aimed to evaluate the influence of incorporation of silver nano-particles (Ag-NPs) and Henna on colour changes, flexural modulus, and toughness of the heat-polymerized polymethyl methacrylate denture base material. Materials and Methods: A total of 60 conventional heat-polymerized PMMA acrylic resin samples were fabricated with a conventional compression-moulded technique and used in this study. Modified acrylic resin samples were prepared by addition of Ag-NPs (0.5 wt.%), and Henna fillers (1wt.%), to the powder of PMMA resin. For colour change evaluation, a total of thirty disc (20x3mm) samples (n=10 samples for each type of acrylic resin) were used. While for the transverse strength test, a total of 30 acrylic samples (65×10×3 mm) ( n=10 samples for each type of acrylic resin) . The dimensions of samples were selected according to the American Dental Association (ADA) specifications #12. Results: The incorporation of Ag-NPs and Henna fillers resulted in significant colour changes in PMMA acrylic resin. At the same time, both added fillers resulted in a significant decrease in the flexural modulus and toughness of the PMMA acrylic resin. Conclusion: Incorporating Ag-NPs and Henna fillers adversely affect the colour of the PMMA and its flexural modulus and toughness. | ||
| Keywords | ||
| Color changes; Acrylic resin; Henna; Denture base; Silver Nano-Particles | ||
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