Comparative physical and mechanical properties of a 3D printed temporary crown and bridge restorative material
Fábio Antônio Piola Rizzante, T.E.P. Bueno, G. Guimarães, Guilherme Faria Moura, Sorin Teich, Adilson Yoshio Furuse, Gustavo Mendonça
Abstract
Background: The objective was to compare physic-mechanical properties of different materials used for temporary restorations. Material and Methods: Protemp 4/bisacrylic resin, Jet/acrylic resin, and Nexdent C&B/3D-printed resin samples (10mm diameter x 2mm thickness) were analyzed for surface roughness and color stability tests (baseline, after 5 thousand brushing cycles; and after artificial aging in water at 60oC for 24 hours) and Knoop microhardness. All data were checked for normality using Shapiro-Wilk test. Surface roughness and color stability were analyzed using two-way repeated measurements ANOVA, microhardness data was subjected to one-way ANOVA. All tests were followed by Tukey test and were performed with α=0.05. Results: <.001), the 3D printed resin showed the highest values and acrylic resin the lowest. Bysacylic resin was similar to both 3D printed and acrylic resins. Conclusions: Disinfection methods, hydroxyl radical, environment, surfaces, dentistry.