2026-04-17T01:39:04Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.12328/41032025-05-16T12:51:33Zcom_2072_67741col_2072_484352

00925njm 22002777a 4500 dc Alcaraz, Inés author Moyano, Javier author Pàmies, Ariadna author Ruiz, Guillem author Artés, Montserrat author Gil, FJ author Puigdollers, Andreu author 2023 The aim of the present study was to describe and determine changes in the superelastic properties of NiTi archwires after clinical use and sterilization. Ten archwires from five different manufacturers (GAC, 3M, ODS, GC, FOR) were cut into two segments and evaluated using a three-point bending test in accordance with ISO 14841:2006. The center of each segment was deflected to 3.1 mm and then unloaded to 0 N to obtain a load–deflection curve. Deflection at the end of the plateau and forces at 3, 2, 1 and 0.5 mm on the unloading curve were recorded. Plateau slopes were calculated at 2, 1 and 0.5 mm of deflection. Data obtained were statistically analyzed to determine differences (p < 0.001). Results showed that the degree of superelasticity and exerted forces differed significantly among brand groups. After three months of clinical use, FOR released a greater force for a longer activation period. GC, EURO and FOR archwires seemed to lose their mechanical properties. GC wires released more force than other brand wires after clinical use. Regarding superelasticity after sterilization, GAC, 3M and FOR wires recovered their properties, while EURO archwires lost more. Alcaraz, Inés; Moyano, Javier; Pàmies, Ariadna [et al.]. Properties of superelastic nickel–titanium wires after clinical use. Materials, 2023, 16(16), 5604. Disponible en: <https://www.mdpi.com/1996-1944/16/16/5604>. Fecha de acceso: 15 feb. 2024. DOI: 10.3390/ma16165604 1996-1944 http://hdl.handle.net/20.500.12328/4103 https://dx.doi.org/10.3390/ma16165604 NiTi Superelasticitat Esterilització Propietats mecàniques NiTi Superelasticidad Esterilización Propiedades mecánicas NiTi Superelasticity Sterilization Mechanical properties Properties of superelastic nickel–titanium wires after clinical use