Effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial

Background: There is no clinical study on ceramic self-ligating brackets (SLBs). Therefore, this preliminary study was conducted for the first time to address its effects.Materials and Methods: This split-mouth randomized trial was performed on 32 quadrants in 16 orthodontic patients needing extract...

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Autores principales:	Mehrnaz Moradinejad, Nasim Ghorani, Majid Heidarpour, Meysam Noori, Vahid Rakhshan
Formato:	article
Lenguaje:	EN
Publicado:	Wolters Kluwer Medknow Publications 2021
Materias:	corrective orthodontics bodily tooth movement tooth rotation Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/2c2ca9e8501c443586405210625b8336
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spelling	oai:doaj.org-article:2c2ca9e8501c443586405210625b83362021-11-12T10:10:18ZEffects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial1735-33272008-025510.4103/1735-3327.328749https://doaj.org/article/2c2ca9e8501c443586405210625b83362021-01-01T00:00:00Zhttp://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=81;epage=81;aulast=Moradinejadhttps://doaj.org/toc/1735-3327https://doaj.org/toc/2008-0255Background: There is no clinical study on ceramic self-ligating brackets (SLBs). Therefore, this preliminary study was conducted for the first time to address its effects.Materials and Methods: This split-mouth randomized trial was performed on 32 quadrants in 16 orthodontic patients needing extraction of maxillary premolars and distalization of canines. In each blinded patient, right/left sides were randomized into control (ceramic bracket) and experimental (ceramic SLB) groups. Dental stone models were taken before canine retraction and 3 months into retraction. Models were digitized as three-dimensional models. Changes were measured on superimposed models. Groups were compared using Wilcoxon signed-rank test (α = 0.05, β = 0.1).Results: Both bracket types caused significant changes after 3 months in terms of all assessed clinical outcomes (P ≤ 0.002). Compared to conventional ceramic brackets (control), ceramic SLBs reduced retraction rate (P = 0.001), canine rotation (P = 0.001), canine tipping (P = 0.002), and arch expansion at the canine site (P = 0.003). However, the extents of anchorage loss (P = 0.796) and arch constriction in the premolar area (P = 0.605) were not statistically different between the bracket types.Conclusion: Compared to conventional metal-lined ceramic brackets, active ceramic SLB can increase the duration of canine distalization, while reducing canine rotation and tipping (inducing more bodily movements). The loss of anchorage with ceramic SLB was similar to that of conventional ceramic bracket after 3 months of treatment (considering the lower rate of SLB canine retraction during that time). Both brackets similarly constricted the arch at the premolar site. In the canine area, they expanded the arch, with the SLB causing smaller extents of expansion.Mehrnaz MoradinejadNasim GhoraniMajid HeidarpourMeysam NooriVahid RakhshanWolters Kluwer Medknow Publicationsarticlecorrective orthodonticsbodily tooth movementtooth rotationDentistryRK1-715ENDental Research Journal, Vol 18, Iss 1, Pp 81-81 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	corrective orthodontics bodily tooth movement tooth rotation Dentistry RK1-715
spellingShingle	corrective orthodontics bodily tooth movement tooth rotation Dentistry RK1-715 Mehrnaz Moradinejad Nasim Ghorani Majid Heidarpour Meysam Noori Vahid Rakhshan Effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial
description	Background: There is no clinical study on ceramic self-ligating brackets (SLBs). Therefore, this preliminary study was conducted for the first time to address its effects.Materials and Methods: This split-mouth randomized trial was performed on 32 quadrants in 16 orthodontic patients needing extraction of maxillary premolars and distalization of canines. In each blinded patient, right/left sides were randomized into control (ceramic bracket) and experimental (ceramic SLB) groups. Dental stone models were taken before canine retraction and 3 months into retraction. Models were digitized as three-dimensional models. Changes were measured on superimposed models. Groups were compared using Wilcoxon signed-rank test (α = 0.05, β = 0.1).Results: Both bracket types caused significant changes after 3 months in terms of all assessed clinical outcomes (P ≤ 0.002). Compared to conventional ceramic brackets (control), ceramic SLBs reduced retraction rate (P = 0.001), canine rotation (P = 0.001), canine tipping (P = 0.002), and arch expansion at the canine site (P = 0.003). However, the extents of anchorage loss (P = 0.796) and arch constriction in the premolar area (P = 0.605) were not statistically different between the bracket types.Conclusion: Compared to conventional metal-lined ceramic brackets, active ceramic SLB can increase the duration of canine distalization, while reducing canine rotation and tipping (inducing more bodily movements). The loss of anchorage with ceramic SLB was similar to that of conventional ceramic bracket after 3 months of treatment (considering the lower rate of SLB canine retraction during that time). Both brackets similarly constricted the arch at the premolar site. In the canine area, they expanded the arch, with the SLB causing smaller extents of expansion.
format	article
author	Mehrnaz Moradinejad Nasim Ghorani Majid Heidarpour Meysam Noori Vahid Rakhshan
author_facet	Mehrnaz Moradinejad Nasim Ghorani Majid Heidarpour Meysam Noori Vahid Rakhshan
author_sort	Mehrnaz Moradinejad
title	Effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial
title_short	Effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial
title_full	Effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial
title_fullStr	Effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial
title_full_unstemmed	Effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial
title_sort	effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: a preliminary single-blind split-mouth randomized clinical trial
publisher	Wolters Kluwer Medknow Publications
publishDate	2021
url	https://doaj.org/article/2c2ca9e8501c443586405210625b8336
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Effects of a ceramic active self-ligating bracket on retraction/tipping/rotation of canine, premolar mesialization, and transverse arch dimensions: A preliminary single-blind split-mouth randomized clinical trial

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