Association between Bolton discrepancy and Angle malocclusions

Detalhes bibliográficos
Autor(a) principal: CANÇADO,Rodrigo Hermont
Data de Publicação: 2015
Outros Autores: GONÇALVES JÚNIOR,Waldir, VALARELLI,Fabrício Pinelli, FREITAS,Karina Maria Salvatore de, CRÊSPO,Janaina Aparecida Lima
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Oral Research
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242015000100313
Resumo: This study aimed to assess and compare the overall and anterior ratios of tooth size discrepancies in all Angle malocclusion groups. The following null hypothesis (H0) was tested: no difference between tooth size discrepancies (overall and anterior) would be observed among Angle malocclusion groups. The sample comprised of 711 pre-orthodontic treatment study casts of Brazilian patients with a mean age of 17.42 years selected from private practices in Brazil. The casts were divided into 3 groups according to the type of malocclusion: Class I (n = 321), Class II (n = 324), and Class III patients (n = 66). The measurement of the greatest mesiodistal width of the teeth was performed using a centesimal precision digital caliper directly on the study casts, from the distal surface of the left first molar to the distal surface of the right first molar. The overall and anterior ratios between the maxillary and mandibular teeth were evaluated using Bolton’s method. The following statistical tests were applied: chi-square, independent t-test, and one-way ANOVA. Results showed that all Angle malocclusions groups exhibited a ratio compatible with those recommended by Bolton. With respect to the overall and anterior ratios among the malocclusion groups, no statistically significant differences were found. The null hypothesis was accepted because the results showed no differences in the overall and anterior ratios of tooth size discrepancies among different Angle malocclusion groups.
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spelling Association between Bolton discrepancy and Angle malocclusionsOdontometryRetrospective StudiesMalocclusionThis study aimed to assess and compare the overall and anterior ratios of tooth size discrepancies in all Angle malocclusion groups. The following null hypothesis (H0) was tested: no difference between tooth size discrepancies (overall and anterior) would be observed among Angle malocclusion groups. The sample comprised of 711 pre-orthodontic treatment study casts of Brazilian patients with a mean age of 17.42 years selected from private practices in Brazil. The casts were divided into 3 groups according to the type of malocclusion: Class I (n = 321), Class II (n = 324), and Class III patients (n = 66). The measurement of the greatest mesiodistal width of the teeth was performed using a centesimal precision digital caliper directly on the study casts, from the distal surface of the left first molar to the distal surface of the right first molar. The overall and anterior ratios between the maxillary and mandibular teeth were evaluated using Bolton’s method. The following statistical tests were applied: chi-square, independent t-test, and one-way ANOVA. Results showed that all Angle malocclusions groups exhibited a ratio compatible with those recommended by Bolton. With respect to the overall and anterior ratios among the malocclusion groups, no statistically significant differences were found. The null hypothesis was accepted because the results showed no differences in the overall and anterior ratios of tooth size discrepancies among different Angle malocclusion groups.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2015-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242015000100313Brazilian Oral Research v.29 n.1 2015reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/1807-3107BOR-2015.vol29.0116info:eu-repo/semantics/openAccessCANÇADO,Rodrigo HermontGONÇALVES JÚNIOR,WaldirVALARELLI,Fabrício PinelliFREITAS,Karina Maria Salvatore deCRÊSPO,Janaina Aparecida Limaeng2018-08-17T00:00:00Zoai:scielo:S1806-83242015000100313Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2018-08-17T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false
dc.title.none.fl_str_mv Association between Bolton discrepancy and Angle malocclusions
title Association between Bolton discrepancy and Angle malocclusions
spellingShingle Association between Bolton discrepancy and Angle malocclusions
CANÇADO,Rodrigo Hermont
Odontometry
Retrospective Studies
Malocclusion
title_short Association between Bolton discrepancy and Angle malocclusions
title_full Association between Bolton discrepancy and Angle malocclusions
title_fullStr Association between Bolton discrepancy and Angle malocclusions
title_full_unstemmed Association between Bolton discrepancy and Angle malocclusions
title_sort Association between Bolton discrepancy and Angle malocclusions
author CANÇADO,Rodrigo Hermont
author_facet CANÇADO,Rodrigo Hermont
GONÇALVES JÚNIOR,Waldir
VALARELLI,Fabrício Pinelli
FREITAS,Karina Maria Salvatore de
CRÊSPO,Janaina Aparecida Lima
author_role author
author2 GONÇALVES JÚNIOR,Waldir
VALARELLI,Fabrício Pinelli
FREITAS,Karina Maria Salvatore de
CRÊSPO,Janaina Aparecida Lima
author2_role author
author
author
author
dc.contributor.author.fl_str_mv CANÇADO,Rodrigo Hermont
GONÇALVES JÚNIOR,Waldir
VALARELLI,Fabrício Pinelli
FREITAS,Karina Maria Salvatore de
CRÊSPO,Janaina Aparecida Lima
dc.subject.por.fl_str_mv Odontometry
Retrospective Studies
Malocclusion
topic Odontometry
Retrospective Studies
Malocclusion
description This study aimed to assess and compare the overall and anterior ratios of tooth size discrepancies in all Angle malocclusion groups. The following null hypothesis (H0) was tested: no difference between tooth size discrepancies (overall and anterior) would be observed among Angle malocclusion groups. The sample comprised of 711 pre-orthodontic treatment study casts of Brazilian patients with a mean age of 17.42 years selected from private practices in Brazil. The casts were divided into 3 groups according to the type of malocclusion: Class I (n = 321), Class II (n = 324), and Class III patients (n = 66). The measurement of the greatest mesiodistal width of the teeth was performed using a centesimal precision digital caliper directly on the study casts, from the distal surface of the left first molar to the distal surface of the right first molar. The overall and anterior ratios between the maxillary and mandibular teeth were evaluated using Bolton’s method. The following statistical tests were applied: chi-square, independent t-test, and one-way ANOVA. Results showed that all Angle malocclusions groups exhibited a ratio compatible with those recommended by Bolton. With respect to the overall and anterior ratios among the malocclusion groups, no statistically significant differences were found. The null hypothesis was accepted because the results showed no differences in the overall and anterior ratios of tooth size discrepancies among different Angle malocclusion groups.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242015000100313
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1807-3107BOR-2015.vol29.0116
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 Sociedade Brasileira de Pesquisa Odontológica - SBPqO
publisher.none.fl_str_mv Sociedade Brasileira de Pesquisa Odontológica - SBPqO
dc.source.none.fl_str_mv Brazilian Oral Research v.29 n.1 2015
reponame:Brazilian Oral Research
instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
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collection Brazilian Oral Research
repository.name.fl_str_mv Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
repository.mail.fl_str_mv pob@edu.usp.br||bor@sbpqo.org.br
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