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Can we expect similar behavior among CuNiTi 35°C wires?
| Content Provider | Scilit |
|---|---|
| Author | Gonzaga, Ariane Salgado Gonzaga, David Salgado Simplício, Hallissa Martins, Renato Parsekian Galvão, Marília Regalado Caldas, Sergei Godeiro Fernandes Rabelo |
| Copyright Year | 2021 |
| Description | Objective: This paper aims to verify the thermodynamic, mechanical and chemical properties of CuNiTi 35ºC commercial wires. Methods: Forty pre-contoured copper-nickel-titanium thermodynamic 0.017 x 0.025-in archwires with an Af temperature of 35°C were used. Eight wires from five different manufacturers (American Orthodontics® [G1], Eurodonto® [G2], Morelli® [G3], Ormco® [G4] and Orthometric® [G5]) underwent cross-sectional dimension measurements, tensile tests, SEM-EDS and differential scanning calorimetry (DSC) tests. Parametric tests (One-way ANOVA and Tukey post-test) were used, with a significance level of 5%, and Pearson’s correlation coefficient test was performed between the Af and chemical elements of the wires. All sample tests and statistical analyses were double-blinded. Results: All wires presented standard dimensions (0.017 x 0.025-in) and superelastic behavior, with mean plateau forces of: G1 = 36.49N; G2 = 27.34N; G3 = 19.24 N; G4 = 37.54 N; and G5 = 17.87N. The Af means were: G1 = 29.40°C, G2 = 29.13°C and G3 = 31.43°C, with p>0.05 relative to each other. G4 (32.77°C) and G5 (35.17°C) presented statistically significant differences between each other and among the other groups. All samples presented Ni, Ti, Cu and Al in different concentrations. Conclusions: The chemical concentration of the elements that compose the alloy significantly influenced the thermodynamic and mechanical properties. |
| Related Links | http://www.scielo.br/pdf/dpjo/v26n2/2177-6709-dpjo-26-02-e211945.pdf |
| ISSN | 21769451 |
| e-ISSN | 21776709 |
| DOI | 10.1590/2177-6709.26.2.e211945.oar |
| Journal | Dental Press Journal of Orthodontics |
| Issue Number | 2 |
| Volume Number | 26 |
| Language | English |
| Publisher | FapUNIFESP (SciELO) |
| Publisher Date | 2021-01-01 |
| Access Restriction | Open |
| Subject Keyword | Dental Press Journal of Orthodontics Dentistry and Oral Surgery Orthodontic Wires Corrective Orthodontics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Oral Surgery Orthodontics |
