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Comparison of frictional resistance between self-ligating and conventional brackets tied with elastomeric and metal ligature in orthodontic archwires

Leite, Vanessa Vieira ; Lopes, Murilo Baena ; Gonini Júnior, Alcides ; Almeida, Marcio Rodrigues De ; Moura, Sandra Kiss ; Almeida, Renato Rodrigues De

Dental press journal of orthodontics, 2014, Vol.19(3), pp.114-9 [Tạp chí có phản biện]

E-ISSN: 2177-6709 ; PMID: 25162575 Version:1

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  • Nhan đề:
    Comparison of frictional resistance between self-ligating and conventional brackets tied with elastomeric and metal ligature in orthodontic archwires
  • Tác giả: Leite, Vanessa Vieira ; Lopes, Murilo Baena ; Gonini Júnior, Alcides ; Almeida, Marcio Rodrigues De ; Moura, Sandra Kiss ; Almeida, Renato Rodrigues De
  • Chủ đề: Dental Brackets ; Friction ; Self-Ligating ; Wires ; Orthodontic Appliance Design ; Orthodontic Brackets ; Orthodontic Wires ; Dental Alloys -- Chemistry ; Dental Materials -- Chemistry ; Elastomers -- Chemistry
  • Là 1 phần của: Dental press journal of orthodontics, 2014, Vol.19(3), pp.114-9
  • Mô tả: To compare the frictional resistance between self-ligating and conventional brackets tied to different types of wire. Abzil Kirium Capelozza (Pattern I) and Easy Clip (Roth prescription) incisor brackets were used. An elastomeric ligature or a 0.10-in ligating wire was used to ligate the wire to the Abzil bracket. Three types of orthodontic archwire alloys were assessed: 0.016-in NiTi wire, 0.016 x 0.021-in NiTi wire and 0.019 x 0.025-in steel wire. Ten observations were carried out for each bracket-archwire angulation combination. Brackets were mounted in a special appliance, positioned at 90 degrees in relation to the wire and tested in two angulations. Frictional test was performed in a Universal Testing Machine at 5 mm/min and 10 mm of displacement. The means (MPa) were submitted to ANOVA and Tukey's test set at 5% of significance. The surfaces of wires and brackets were observed at SEM. Steel-tied brackets (16.48 ± 8.31) showed higher means of frictional resistance than elastomeric-tied brackets (4.29 ± 2.16 ) and self-ligating brackets (1.66 ± 1.57) (P 0.05). No statistical differences (P > 0.05) were found between zero (7.76 ± 8.46) and five-degree (7.19 ± 7.93) angulations. Friction was influenced not only by the type of bracket, but also by the ligating systems. Different morphological aspects were observed for the brackets and wires studied.
  • Ngôn ngữ: English
  • Số nhận dạng: E-ISSN: 2177-6709 ; PMID: 25162575 Version:1

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