The Medical Study of Denture Base Resin Poly(Methyl Methacrylate) Reinforced by ZnO and TCP Nanoparticles

Abstract

Denture base poly (methyl methacrylate (PMMA) resin is one of the most frequently used materials in denture base synthesis, but due to its poor mechanical properties, PMMA can be considered a medium for the attachment and growth of a variety of pathogenic bacteria and fungi, particularly due to PMMA's pores and rough surface. The porosity percentage and surface roughness of the PMMA resin sample was lowered in this study, which resulted in a reduction in microorganisms' surface adhesion by varying the ratios of additives such as zinc oxide (ZnO) and tri-calcium phosphate (TCP) nanoparticles with (1, 2, 3, and 10% wt percent) for each additive separately, and 3% as a combination of ZnO and TCP nanoparticles in an equal ratio. Additionally, mechanical features such as surface hardness are developed, which is a critical attribute for polishing and easy finishing, as well as offering great scratch resistance during denture base cleaning. These results indicated that when compared to the other groups, PMMA (ZnO wt. 1%) and TCP-wt. 1%) reinforced composite resins demonstrated the best optimum properties. Additionally, it was discovered that adding 1% of NPs improved the mechanical qualities, which benefited the biological properties by reducing bacterial adherence to the PMMA composite resin.

Synthesis of PVA Nanofibers to Enhance the Mechanical and Thermal Properties of PMMA Matrix for Denture Base Applications

“…(1) Since 1937, acrylic resins have been the most widely utilized material in the production of denture bases. (2) It is superior to other materials since it is simple to work with and repair, nontoxic, and lightweight, but it has a number of disadvantages, one of which is that it has subpar mechanical qualities. (3) A denture fracture results from two different types of forces, namely impact and flexural fatigue.…”

“…The outcomes demonstrated that the qualities of wear, tensile, and thermal properties were enhanced by the addition of licorice and pomegranate particles to poly methyl methacrylate resin. (2) In 2021, Teba et al published an paper about enhancing the mechanical properties of heat cured acrylic resin by adding the natural sisal fibers powder. 90 specimens were prepared for use in her investigation.…”