A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects
Autor(a) principal: | |
---|---|
Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of applied oral science (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572010000200007 |
Resumo: | OBJECTIVE: This study aimed to compare skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects presenting normal occlusions. MATERIAL AND METHODS: The sample comprised the lateral cephalograms of 106 untreated Brazilian subjects with normal occlusion, divided into two groups: Group 1- 50 white subjects (25 of each gender), at a mean age of 13.17 years (standard deviation 1.07); and Group 2- 56 black subjects (28 of each gender), at a mean age of 13.24 years (standard deviation 0.56). Variables studied were obtained from several cephalometric analyses. Independent t tests were used for intergroup comparison and to determine sexual dimorphism. RESULTS: black subjects presented a more protruded maxilla and mandible, a smaller chin prominence and a greater maxillomandibular discrepancy than white subjects. Blacks presented a more horizontal craniofacial growth pattern than whites. Maxillary and mandibular incisors presented more protruded and proclined in black subjects. The nasolabial angle was larger in whites. Upper and lower lips were more protruded in blacks than in whites. CONCLUSIONS: The present study found a bimaxillary skeletal, dentoalveolar and soft tissue protrusion in black Brazilian subjects compared to white Brazilian subjects, both groups with normal occlusion. Upper and lower lips showed to be more protruded in blacks, but lip thickness was similar in both groups. |
id |
USP-17_43d2463e81ade1a3a0b719d326e2b5ef |
---|---|
oai_identifier_str |
oai:scielo:S1678-77572010000200007 |
network_acronym_str |
USP-17 |
network_name_str |
Journal of applied oral science (Online) |
repository_id_str |
|
spelling |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjectsEthnic groupsCephalometryNormal valuesOBJECTIVE: This study aimed to compare skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects presenting normal occlusions. MATERIAL AND METHODS: The sample comprised the lateral cephalograms of 106 untreated Brazilian subjects with normal occlusion, divided into two groups: Group 1- 50 white subjects (25 of each gender), at a mean age of 13.17 years (standard deviation 1.07); and Group 2- 56 black subjects (28 of each gender), at a mean age of 13.24 years (standard deviation 0.56). Variables studied were obtained from several cephalometric analyses. Independent t tests were used for intergroup comparison and to determine sexual dimorphism. RESULTS: black subjects presented a more protruded maxilla and mandible, a smaller chin prominence and a greater maxillomandibular discrepancy than white subjects. Blacks presented a more horizontal craniofacial growth pattern than whites. Maxillary and mandibular incisors presented more protruded and proclined in black subjects. The nasolabial angle was larger in whites. Upper and lower lips were more protruded in blacks than in whites. CONCLUSIONS: The present study found a bimaxillary skeletal, dentoalveolar and soft tissue protrusion in black Brazilian subjects compared to white Brazilian subjects, both groups with normal occlusion. Upper and lower lips showed to be more protruded in blacks, but lip thickness was similar in both groups.Faculdade De Odontologia De Bauru - USP2010-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572010000200007Journal of Applied Oral Science v.18 n.2 2010reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S1678-77572010000200007info:eu-repo/semantics/openAccessFreitas,Lívia Maria Andrade deFreitas,Karina Maria Salvatore dePinzan,ArnaldoJanson,GuilhermeFreitas,Marcos Roberto deeng2010-05-14T00:00:00Zoai:scielo:S1678-77572010000200007Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2010-05-14T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects |
title |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects |
spellingShingle |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects Freitas,Lívia Maria Andrade de Ethnic groups Cephalometry Normal values |
title_short |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects |
title_full |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects |
title_fullStr |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects |
title_full_unstemmed |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects |
title_sort |
A comparison of skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects |
author |
Freitas,Lívia Maria Andrade de |
author_facet |
Freitas,Lívia Maria Andrade de Freitas,Karina Maria Salvatore de Pinzan,Arnaldo Janson,Guilherme Freitas,Marcos Roberto de |
author_role |
author |
author2 |
Freitas,Karina Maria Salvatore de Pinzan,Arnaldo Janson,Guilherme Freitas,Marcos Roberto de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Freitas,Lívia Maria Andrade de Freitas,Karina Maria Salvatore de Pinzan,Arnaldo Janson,Guilherme Freitas,Marcos Roberto de |
dc.subject.por.fl_str_mv |
Ethnic groups Cephalometry Normal values |
topic |
Ethnic groups Cephalometry Normal values |
description |
OBJECTIVE: This study aimed to compare skeletal, dentoalveolar and soft tissue characteristics in white and black Brazilian subjects presenting normal occlusions. MATERIAL AND METHODS: The sample comprised the lateral cephalograms of 106 untreated Brazilian subjects with normal occlusion, divided into two groups: Group 1- 50 white subjects (25 of each gender), at a mean age of 13.17 years (standard deviation 1.07); and Group 2- 56 black subjects (28 of each gender), at a mean age of 13.24 years (standard deviation 0.56). Variables studied were obtained from several cephalometric analyses. Independent t tests were used for intergroup comparison and to determine sexual dimorphism. RESULTS: black subjects presented a more protruded maxilla and mandible, a smaller chin prominence and a greater maxillomandibular discrepancy than white subjects. Blacks presented a more horizontal craniofacial growth pattern than whites. Maxillary and mandibular incisors presented more protruded and proclined in black subjects. The nasolabial angle was larger in whites. Upper and lower lips were more protruded in blacks than in whites. CONCLUSIONS: The present study found a bimaxillary skeletal, dentoalveolar and soft tissue protrusion in black Brazilian subjects compared to white Brazilian subjects, both groups with normal occlusion. Upper and lower lips showed to be more protruded in blacks, but lip thickness was similar in both groups. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-04-01 |
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=S1678-77572010000200007 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572010000200007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1678-77572010000200007 |
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 |
Faculdade De Odontologia De Bauru - USP |
publisher.none.fl_str_mv |
Faculdade De Odontologia De Bauru - USP |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science v.18 n.2 2010 reponame:Journal of applied oral science (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Journal of applied oral science (Online) |
collection |
Journal of applied oral science (Online) |
repository.name.fl_str_mv |
Journal of applied oral science (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||jaos@usp.br |
_version_ |
1748936436043743232 |