Abstract
The study of the mechanical behavior of materials intended for dental restorations is of crucial importance in the production of a finished product. In the present work, two resins were used for the material matrix, Bisphenol A diglycidyl methacrylate (Bis-GMA), hydroxyethylmethacrylate (HEMA) and a nanofiller (SiO2). This study focuses on the influence of nanoparticle size (30, 50, 100 and 150 nm) on the mechanical properties (flexural strenght and modulus, compression strenght and modulus and work of fracture) of the manufactured composite materials. The results showed improvements in the mechanical integrity of the samples, but differed depending on the size of the nanoparticles added. These differences are closely related to the active surface of the nanoparticles, leading to differences in filler-resin matrix compatibility.
Highlights
IntroductionMan has made a case study regarding the choice of materials for operative dentistry
Since ancient times, man has made a case study regarding the choice of materials for operative dentistry
Physical and mechanical properties as well as in vitro bioactivity were significantly improved by the obtained poly(Bis-GMA)-grafted silanized hydroxyapatite whisker (PGSHW)/s-SiO2 [24] .The objective of this work was to observe the effect of 4 nanoparticle dimensions on the Bisphenol A diglycidyl methacrylate (Bis-GMA)/ HEMA resins, which from the knowledge acquired by the authors in this study field, it represents a novelty
Summary
Man has made a case study regarding the choice of materials for operative dentistry. An important role in the properties of biomaterials for the adhesion of biological cells is played by the composition of the material used and its charge [1 - 3], as well as by the affinity for water and surface roughness [4]. These biomaterials are subjected to physical and biological study, and the level of interaction with the human body is analyzed [5, 6]. The basic requirements of biomaterials are mechanical characteristics, biocompatibility [7] and resistance to corrosion in body fluids and tissues [8]. Biocompatibility is the ability of the substance to interact with fluids and tissues of the body without causing undesirable harm to the body, such as toxicity and irritant effects, inflammatory and allergic reactions [9, 10]
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