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Surface, mechanical and chemical properties of modified denture resin using natural biopolymer.
Khan, Aftab Ahmed; Alkhureif, Abdulaziz Abdullah; Awaiyer, Meshal Saeed; Bautista, Leonel S J.
Afiliação
  • Khan AA; Aftab Ahmed Khan, PhD, MSc, M.Bioeth, B.D.S., Researcher, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
  • Alkhureif AA; Abdul Aziz Abdullah Alkhureif, PhD, MSc, B.Dent Tech, Professor, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
  • Awaiyer MS; Meshal Saeed Awaiyer, B.Dent Tech, Teaching Demonstrator, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
  • Bautista LSJ; Leonel S J Bautista, B.D.S., Researcher, Dental and Oral Rehabilitation Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Pak J Med Sci ; 39(6): 1631-1636, 2023.
Article em En | MEDLINE | ID: mdl-37936770
Objective: This laboratory study determined the surface, mechanical and chemical properties of polymethyl methacrylate (PMMA) denture resin reinforced with micron-sized Gum Arabic (GA) powder in different weight ratios. Methods: This laboratory study was conducted at the Dental Health Department of the College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia from November 2022 to February 2023. Three experimental denture resins were prepared by incorporating GA powder in heat-polymerized PMMA powder using different wt.% (5, 10, and 20 wt.%). While pristine PMMA served as the control group. A total of ten bar-shaped specimens with dimensions of 65 mm × 10 mm × 3.5 mm were prepared for each study group. The surface properties (micro CT and SEM evaluation), mechanical properties (Nanohardness, elastic modulus and flexural strength) and chemical properties (FTIR) were conducted. The data were statistically analyzed using the one-way analysis of variance and Tukey's post hoc tests (p<0.05). Results: The surface and bulk properties of experimental GA-reinforced PMMA resin materials deteriorated while the mechanical properties were also negatively altered using GA-based PMMA denture resin. A linear correlation was observed between weak mechanical properties and increasing wt.% of GA in denture resin. Conclusions: The incorporation of GA powder in denture resin might not be a viable option. The surface and mechanical properties of experimental PMMA composites were adversely affected compared to the control group.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article