Effect of polymerization technique and glass fiber addition on the surface roughness and hardness of PMMA denture base material
Source abstract
Abstract
The current study evaluated the effects of autoclave polymerization both with and without glass fiber (GF) reinforcement on the surface roughness and hardness of acrylic denture base material. Ninety disc specimens (30×2.5 mm) were prepared from Vertex resin and divided according to polymerization techniques into a water bath, short and long autoclave polymerization groups. Tested groups were divided into three subgroups according to the GF concentration (0, 2.5, and 5 wt%). Profilometer and Vickers hardness tests were performed to measure surface roughness and hardness. ANOVA and Tukey-Kramer multiple comparison tests analyzed the results, and p≤0.05 was considered statistically significant. Autoclave polymerization significantly decreased the surface roughness and increased the hardness of acrylic resin without GF reinforcement (p<0.05). However, 5 wt% GF addition significantly increased surface roughness and decreased hardness of the autoclave polymerized denture base resin (p<0.05). Surface properties of Polymethyl methacrylate (PMMA) denture base material improved with autoclave polymerization and negatively affected with GFs addition.
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Research context
OpenAlex topics: Dental materials and restorations · Dental Implant Techniques and Outcomes · Dental Research and COVID-19
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University
Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University
Department of Dental Biomaterials, College of Dentistry, Al-Azhar University
References (41)
Show source-provided references
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