A comparison of lower canine retraction and loss of anchorage between conventional and self-ligating brackets: a single-center randomized split-mouth controlled trial

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dc.contributor.authorda Costa Monini, André [UNESP]
dc.contributor.authorJúnior, Luiz Gonzaga Gandini [UNESP]
dc.contributor.authorVianna, Alexandre Protásio [UNESP]
dc.contributor.authorMartins, Renato Parsekian [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionBaylor College of Dentistry
dc.contributor.institutionUSA and Saint Louis University
dc.date.accessioned2018-12-11T17:28:23Z
dc.date.available2018-12-11T17:28:23Z
dc.date.issued2017-05-01
dc.description.abstractObjective: To evaluate the rate of lower canine retraction, anchorage loss, and changes on lower canines and first molars axial inclination using self-ligating and conventional brackets. Materials and methods: Twenty-five adult patients with a treatment plan involving extractions of four first premolars were selected for this split-mouth trial and had either conventional or self-ligating brackets bonded to lower canines in a block randomization. Retraction was accomplished using 100-g nickel titanium closed-coil springs, which were reactivated each 4 weeks. Oblique radiographs were taken before and after total canine retraction and the cephalograms were superimposed on stable structures of the mandible. Cephalometric points were digitized twice by a single-blinded operator for error control and the average of the points were used to determine the following variables: canine cusp horizontal changes, molar cusp horizontal changes, and angulation changes in canines and molars. Paired t tests were used to analyze the blinded data for group differences. Results: All patients reached final phase without bracket debonds. No differences were found between the two groups for all variables tested. No serious harm was observed. Conclusion: Both brackets showed the same rate of canine retraction and loss of anteroposterior anchorage of the molars. No changes were found between brackets regarding the inclination of canines and first molars. Clinical Relevance: Using self-ligating brackets to retract lower canines will not increase the velocity of tooth movement, does not increase anchorage, and does not decrease tipping.en
dc.description.affiliationStudent of Faculdade de Odontologia de Araraquara Universidade Estadual Paulista UNESP
dc.description.affiliationFaculdade de Odontologia de Araraquara Universidade Estadual Paulista UNESP
dc.description.affiliationBaylor College of Dentistry
dc.description.affiliationUSA and Saint Louis University
dc.description.affiliationUnespStudent of Faculdade de Odontologia de Araraquara Universidade Estadual Paulista UNESP
dc.description.affiliationUnespFaculdade de Odontologia de Araraquara Universidade Estadual Paulista UNESP
dc.format.extent1047-1053
dc.identifierhttp://dx.doi.org/10.1007/s00784-016-1855-7
dc.identifier.citationClinical Oral Investigations, v. 21, n. 4, p. 1047-1053, 2017.
dc.identifier.doi10.1007/s00784-016-1855-7
dc.identifier.file2-s2.0-84973099078.pdf
dc.identifier.issn1436-3771
dc.identifier.issn1432-6981
dc.identifier.scopus2-s2.0-84973099078
dc.identifier.urihttp://hdl.handle.net/11449/178056
dc.language.isoeng
dc.relation.ispartofClinical Oral Investigations
dc.relation.ispartofsjr0,986
dc.relation.ispartofsjr0,986
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAnchorage
dc.subjectCanine retraction
dc.subjectSelf-ligating brackets
dc.subjectTooth movement rate
dc.titleA comparison of lower canine retraction and loss of anchorage between conventional and self-ligating brackets: a single-center randomized split-mouth controlled trialen
dc.typeArtigo

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