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Revista Cubana de Investigaciones Biomédicas
versão On-line ISSN 1561-3011
Resumo
MAYLLE LEON, James Enrique; GIRANO CASTANOS, Jorge e ROJAS ORTEGA, Raúl. Comparison of the module of elasticity and resistance of thermal curing acrylic resin and flexible superpolyamide resin. An in vitro study. Rev Cubana Invest Bioméd [online]. 2021, vol.40, n.4 Epub 25-Mar-2022. ISSN 1561-3011.
Objective:
Compare the module of elasticity and resistance of thermal curing acrylic resin and flexible superpolyamide resin.
Methods:
An experimental study was conducted of two types of acrylic resins molded in wax to obtain a 64 mm long, 10 mm wide and 2.5 mm thick rectangular shape, and then transferred to thermal curing acrylic resin and flexible superpolyamide resin. Ten acrylic resin blocks of each type were used. The blocks were compressed by the universal testing machine, which generated an approximation force of 0.001 N on the blocks at a forward speed of 0.01 mm/min. The resistance module and the elasticity module were analyzed with the three point flexural test.
Results:
The elasticity module of the thermal curing acrylic resin was 2501.83 ± 139.42, whereas the resistance module was 78.36 ± 11.69 MPa. The elasticity module of the flexible superpolyamide resin was 1020.59 ± 92,95, whereas the resistance module was 36.04 ± 2.71 MPa. The elasticity module of the thermal curing acrylic resin was greater than that of the flexible superpolyamide resin, the difference being 1481.24 MPa. The resistance module of the thermal curing acrylic resin was greater than that of the flexible superpolyamide resin.
Conclusions:
The elasticity (rigidity) and resistance module was greater in the thermal curing acrylic resin than in the flexible superpolyamide resin.
Palavras-chave : acrylic resin; resistance module; elasticity module.