Compósito Odontológico para Impressão 3D

Abstract

3D printing has constantly evolved and with this comes the need to develop new materials for 3D printing in dentistry, therefore, this work aims to develop a composite 3D resin with the addition of inorganic filler and compare the properties with a resin 3D without the addition of inorganic filler, both printed using digital light processing (DLP) technology. The properties analyzed were: Flexural strength, modulus of elasticity, surface roughness, Knoop hardness and scanning electron microscopy. The 3D composite resin with the addition of inorganic filler presented a flexural strength of 119.12 MPa, elastic modulus 2.84 GPa and Knoop hardness 30.49 KHN, while the 3D resin without added filler presented a flexural strength of 102.26 MPa, modulus of elasticity 2.42 GPa and Knoop hardness 24.12 KHN, and both presented the same surface roughness range of 0.24µm, demonstrating that the incorporation of inorganic filler provided an increase in mechanical properties and maintained the roughness of surface. Furthermore, morphological analysis using SEM made it possible to visualize the distribution of inorganic particles. Therefore, 3D composite resin with the addition of inorganic filler is a promising material for dental applications that require resistant materials with good performanc