Comparison of force delivery of thermally activated aesthetic and non-aesthetic Ni-Ti wires : an in-vitro study
Carlos Henrique Batista, José Guilherme Neves, Ana Paula Terossi de Godoi, Viviane Veroni Degan, Willian Custódio, Vivian Furletti, Mário Vedovello Filho
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Inglês
The present study aimed to compare the force of aesthetic wires and their non-aesthetic equivalents from two commercial brands at different displacement points, during the unloading phase at 36 °C. Forty samples (n = 10) were assessed, which were presented in two groups of aesthetic wires and two...
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The present study aimed to compare the force of aesthetic wires and their non-aesthetic equivalents from two commercial brands at different displacement points, during the unloading phase at 36 °C. Forty samples (n = 10) were assessed, which were presented in two groups of aesthetic wires and two groups of non-aesthetic wires from the brands GAC® (Dentsply GAC® International, NY, USA) and Aditek®(Cravinhos, SP, Brazil), with 0.016-inch gauge. The orthodontic wires were maintained at a temperature of 36 °C throughout the experiment and they were subjected to the three-point bending test at a speed of 1 mm/min. The unloading values were recorded as 0.5, 1.5, and 2.5 mm of displacement. The data were subjected to Student's t-test and unequal variance t test, at 5% significance level. During the unloading phase, the mean force was significantly higher for aesthetic wires than non-aesthetic ones, in the deflection of 2.5 mm, presenting values means of 2.25 N (P = .0213). In deflections of 0.5 mm and 1.5 mm, the orthodontic archwires did not show significant differences in force between the thermally activated wires with aesthetic coating and their non-aesthetic equivalents (P ≥ 0.05). It is concluded that during the unloading phase at a temperature of 36 °C, the orthodontic archwires analyzed did not show significant difference in force between thermally activated wires with aesthetic coating and their non-aesthetic equivalents at most displacement points analysed, except for the deflection of 2.5 mm, which showed higher values
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Comparison of force delivery of thermally activated aesthetic and non-aesthetic Ni-Ti wires : an in-vitro study
Carlos Henrique Batista, José Guilherme Neves, Ana Paula Terossi de Godoi, Viviane Veroni Degan, Willian Custódio, Vivian Furletti, Mário Vedovello Filho
Comparison of force delivery of thermally activated aesthetic and non-aesthetic Ni-Ti wires : an in-vitro study
Carlos Henrique Batista, José Guilherme Neves, Ana Paula Terossi de Godoi, Viviane Veroni Degan, Willian Custódio, Vivian Furletti, Mário Vedovello Filho
Fontes
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International orthodontics Vol. 18, no. 2 (June, 2020), p. 359-365 |