Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors

Detalhes bibliográficos
Autor(a) principal: Moresca,Ricardo Cesar
Data de Publicação: 2012
Outros Autores: Vigorito,Julio Wilson, Dominguez,Gladys Cristina, Tortamano,André, Moraes,Danielle Rodrigues, Moro,Alexandre, Correr,Gisele Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000400021
Resumo: The purpose of this study was to compare the effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors during leveling phase. Twenty-three subjects with Class I and Class II malocclusion were treated with first premolars extraction using preadjusted appliances (MBT 0.022-inch brackets). The leveling phase was performed with stainless steel archwires only. The sample was divided into 2 groups: 14 subjects received active lacebacks (Group 1) and 9 subjects received passive lacebacks (Group 2). Lacebacks were made from 0.008-inch ligature wire. Lateral cephalometric radiographs were taken pre- and post-leveling phase. Student's t-test was applied to determine the differences between pre- and post-leveling mean values and to determine the mean differences between groups. In Group I, the first molars showed a significant mesial movement, whereas no change was observed in Group 2. In both groups, maxillary central incisor crowns moved to lingual side. In conclusion, active laceback produced anchorage loss of maxillary first molars whereas passive laceback did not affect the position of these teeth. Active and passive lacebacks were effective in preventing central incisor proclination.
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spelling Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisorscorrective orthodonticsorthodontic anchorage procedurecephalometryThe purpose of this study was to compare the effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors during leveling phase. Twenty-three subjects with Class I and Class II malocclusion were treated with first premolars extraction using preadjusted appliances (MBT 0.022-inch brackets). The leveling phase was performed with stainless steel archwires only. The sample was divided into 2 groups: 14 subjects received active lacebacks (Group 1) and 9 subjects received passive lacebacks (Group 2). Lacebacks were made from 0.008-inch ligature wire. Lateral cephalometric radiographs were taken pre- and post-leveling phase. Student's t-test was applied to determine the differences between pre- and post-leveling mean values and to determine the mean differences between groups. In Group I, the first molars showed a significant mesial movement, whereas no change was observed in Group 2. In both groups, maxillary central incisor crowns moved to lingual side. In conclusion, active laceback produced anchorage loss of maxillary first molars whereas passive laceback did not affect the position of these teeth. Active and passive lacebacks were effective in preventing central incisor proclination.Fundação Odontológica de Ribeirão Preto2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000400021Brazilian Dental Journal v.23 n.4 2012reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402012000400021info:eu-repo/semantics/openAccessMoresca,Ricardo CesarVigorito,Julio WilsonDominguez,Gladys CristinaTortamano,AndréMoraes,Danielle RodriguesMoro,AlexandreCorrer,Gisele Mariaeng2012-11-29T00:00:00Zoai:scielo:S0103-64402012000400021Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2012-11-29T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors
title Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors
spellingShingle Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors
Moresca,Ricardo Cesar
corrective orthodontics
orthodontic anchorage procedure
cephalometry
title_short Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors
title_full Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors
title_fullStr Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors
title_full_unstemmed Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors
title_sort Effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors
author Moresca,Ricardo Cesar
author_facet Moresca,Ricardo Cesar
Vigorito,Julio Wilson
Dominguez,Gladys Cristina
Tortamano,André
Moraes,Danielle Rodrigues
Moro,Alexandre
Correr,Gisele Maria
author_role author
author2 Vigorito,Julio Wilson
Dominguez,Gladys Cristina
Tortamano,André
Moraes,Danielle Rodrigues
Moro,Alexandre
Correr,Gisele Maria
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Moresca,Ricardo Cesar
Vigorito,Julio Wilson
Dominguez,Gladys Cristina
Tortamano,André
Moraes,Danielle Rodrigues
Moro,Alexandre
Correr,Gisele Maria
dc.subject.por.fl_str_mv corrective orthodontics
orthodontic anchorage procedure
cephalometry
topic corrective orthodontics
orthodontic anchorage procedure
cephalometry
description The purpose of this study was to compare the effects of active and passive lacebacks on antero-posterior position of maxillary first molars and central incisors during leveling phase. Twenty-three subjects with Class I and Class II malocclusion were treated with first premolars extraction using preadjusted appliances (MBT 0.022-inch brackets). The leveling phase was performed with stainless steel archwires only. The sample was divided into 2 groups: 14 subjects received active lacebacks (Group 1) and 9 subjects received passive lacebacks (Group 2). Lacebacks were made from 0.008-inch ligature wire. Lateral cephalometric radiographs were taken pre- and post-leveling phase. Student's t-test was applied to determine the differences between pre- and post-leveling mean values and to determine the mean differences between groups. In Group I, the first molars showed a significant mesial movement, whereas no change was observed in Group 2. In both groups, maxillary central incisor crowns moved to lingual side. In conclusion, active laceback produced anchorage loss of maxillary first molars whereas passive laceback did not affect the position of these teeth. Active and passive lacebacks were effective in preventing central incisor proclination.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000400021
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402012000400021
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-64402012000400021
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Odontológica de Ribeirão Preto
publisher.none.fl_str_mv Fundação Odontológica de Ribeirão Preto
dc.source.none.fl_str_mv Brazilian Dental Journal v.23 n.4 2012
reponame:Brazilian Dental Journal
instname:Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron:FUNORP
instname_str Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron_str FUNORP
institution FUNORP
reponame_str Brazilian Dental Journal
collection Brazilian Dental Journal
repository.name.fl_str_mv Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)
repository.mail.fl_str_mv bdj@forp.usp.br||sergio@fosjc.unesp.br
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