Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?

Neto, José Rino; Queiroz, Gilberto Vilanova; Paiva, João Batista de; Ballester, Rafael Yagüe

doi:10.1590/s2176-94512013000100018

Cited by 4 publications

(2 citation statements)

References 10 publications

(17 reference statements)

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“…Confirming previous results (17), there were no differences in the unloading forces between Damon Q and In-Ovation R self-ligating brackets with 0.016-inch NiTi wires in smaller deflections of 0.5 and 1.0mm ( Table 2).…”

Section: Discussionsupporting

confidence: 90%

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Evaluation of the force generated by gradual deflection of 0.016-inch NiTi and stainless steel orthodontic wires in self-ligating metallic and esthetic brackets

et al. 2019

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Background The purpose of this study was to evaluate the deflection forces of 0.016-inch Nitinol and stainless steel orthodontic wires, in association to different self-ligating brackets. Material and Methods Specimens were mounted in a clinical simulation model and evaluated in a Universal Testing Machine (INSTRON 3342), using a 10N load cell and ISO 15,841, as a protocol. Eight of these models were prepared, each one for the bonding of each set of self-ligating accessories to be tested: Damon Q, Damon Clear (Ormco), In-Ovation R, In-Ovation C (GAC), BioQuick, QuickClear (Forestadent), SmartClip and Clarity SL (3M). Data were subjected to One-way ANOVA, followed by Tukey tests ( P <0.05). Results Elastic deflection results showed that the deactivation forces increased with increase in wire deflection in the different brackets evaluated. For the different combinations, Clarity SL generated the greatest force and Damon Clear presented the lowest force when compared to the other brackets in all alloys and deflections. BioQuick and QuicKlear were those with the most similar behavior with each other. Conclusions Strength values increased with gradual increase in wire deflection in all evaluated brackets. Clarity SL generated the greatest and Damon Clear the lowest force when compared to the other brackets in all alloys and deflections tested. Key words: Brackets, orthodontic wires, deflection.

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Section: Discussionsupporting

confidence: 90%

“…Although in 0.5mm of deflection, the results were not standardized between different self-ligating bracket combinations, another study found that designs of the brackets, which limited the wire tying strength, generate less friction at low deflections ( Table 2)(17).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the force generated by gradual deflection of 0.016-inch NiTi and stainless steel orthodontic wires in self-ligating metallic and esthetic brackets

et al. 2019

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Diagnostic Value of 3D Imaging in Clinical Orthodontics

Palomo

Stefanović

et al. 2019

Craniofacial 3D Imaging

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Effect of horizontal slot of maxillary canines’ brackets with varying wire angulations - An in vitro study

et al. 2022

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A new device was developed to enable the visualization and measurement of canine angulation while at the same time visualizing and measuring the force transmitted to adjacent teeth. This study aimed to evaluate the mesiodistal tilt angle of the upper canine brackets, the wire deflection, and its effects on adjacent teeth with five different slot designs of upper canines. Wires (0.020” and 0.019” x 0.025”) were tested on different five bracket types at five different distal angles. The force applied to adjacent teeth was measured as the angle was increased, and its consequences were observed in the posterior and anterior regions as well. The force tension (gf) was measured in a universal testing machine. Data were submitted to a 3-way ANOVA and Tukey’s test (α=0.05). For both arches, regardless of the type of tooth and bracket type, the highest means tension mean values were shown by the 20° angle, followed by the 15°,10°, and 5° angles, which differed statistically among themselves. Overall, for 5°, 10°, and 15° angles, conventional and versatile brackets showed significantly higher force values in all teeth, tip-edge and control brackets showed the lowest. The highest force values were observed in central and lateral incisors with conventional and versatile brackets and on first and second premolar teeth with self-ligating passive and control brackets. Conventional brackets presented the highest forces, tip-edge and control brackets showed the lowest. The teeth that suffered the greatest forces were lateral incisors, and those that suffered the least were second premolars.

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Does self-ligating brackets type influence the hysteresis, activation and deactivation forces of superelastic NiTi archwires?

Abstract: Brackets with higher activation forces were accompanied by higher hysteresis values, which resulted in clinically similar deactivation forces, regardless of the type of self-ligating brackets used.

Cited by 4 publications

References 10 publications

Evaluation of the force generated by gradual deflection of 0.016-inch NiTi and stainless steel orthodontic wires in self-ligating metallic and esthetic brackets

Evaluation of the force generated by gradual deflection of 0.016-inch NiTi and stainless steel orthodontic wires in self-ligating metallic and esthetic brackets

Diagnostic Value of 3D Imaging in Clinical Orthodontics

Effect of horizontal slot of maxillary canines’ brackets with varying wire angulations - An in vitro study

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