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Evaluation of friction on self-ligating and conventional brackets associated with different types of archwires submitted to sliding mechanics
Barbosa, William Carlos Silva; Correr, Américo Bortolazzo; Carneiro, Diego Patrik Alves; Vedovello Filho, Mário; Godoi, Ana Paula Terossi de; Valdrighi, Heloísa Cristina.
Afiliação
  • Barbosa, William Carlos Silva; Araras Dental School, Uniararas. Department of Orthodontics. Araras. BR
  • Correr, Américo Bortolazzo; Universidade Estadual de Campinas. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Carneiro, Diego Patrik Alves; Araras Dental School, Uniararas. Department of Orthodontics. Araras. BR
  • Vedovello Filho, Mário; Araras Dental School, Uniararas. Department of Orthodontics. Araras. BR
  • Godoi, Ana Paula Terossi de; Araras Dental School, Uniararas. Department of Orthodontics. Araras. BR
  • Valdrighi, Heloísa Cristina; Araras Dental School, Uniararas. Department of Orthodontics. Araras. BR
Braz. j. oral sci ; 18: e191605, jan.-dez. 2019. ilus
Article em En | LILACS, BBO | ID: biblio-1095172
Biblioteca responsável: BR218.1
ABSTRACT

Aim:

The aim of this study was to verify the frictional force during sliding mechanics in orthodontic tooth movement, using conventional metal brackets of the active and passive self-ligating types with stainless steel and copper nickel titanium archwires.

Methods:

This experimental in vitro study was conducted with conventional metal (Morelli, Sorocaba, SP, Brazil) brackets, active self-ligated (SLI Morelli, Sorocaba, SP, Brazil) and passive self-ligated (SLP Morelli, Sorocaba, SP, Brazil), with slot 0.022 x 0.028 inches and Roth prescription. The brackets were tested with rectangular section 0.019 x 0.025 inch copper nickel titanium and stainless steel archwires. For each type of bracket, 10 sets of plate/bracket/archwire segment (n=10) were fabricated. Non-parametric Kruskal Wallis and Dunn tests were used for comparison between types of brackets and Wilcoxon tests for comparison between types of archwires.

Results:

The results showed that the frictional force values were higher with copper nickel titanium than with stainless steel archwires (p<0.05). When copper nickel titanium archwires were used, the active self-ligating brackets showed higher frictional force values than the other types, followed by the conventional brackets. Lower frictional force values were observed with passive self-ligating brackets. For stainless steel archwires, no difference was observed between conventional and active self-ligating brackets, the passive self-ligating type presented lower frictional force values than the others.

Conclusion:

It was concluded that the higher frictional force was observed when active self-ligating brackets were associated with copper nickel titanium archwires. Lower frictional force was verified between passive self-ligating brackets combined with stainless steel archwires
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Texto completo: 1 Índice: LILACS Assunto principal: Braquetes Ortodônticos / Desenho de Aparelho Ortodôntico / Fricção em Ortodontia Tipo de estudo: Risk_factors_studies Idioma: En Revista: Braz. j. oral sci Assunto da revista: ODONTOLOGIA Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Índice: LILACS Assunto principal: Braquetes Ortodônticos / Desenho de Aparelho Ortodôntico / Fricção em Ortodontia Tipo de estudo: Risk_factors_studies Idioma: En Revista: Braz. j. oral sci Assunto da revista: ODONTOLOGIA Ano de publicação: 2019 Tipo de documento: Article