Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Brazilian journal of oral sciences (Online) |
Texto Completo: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641541 |
Resumo: | Estimating enamel thickness and planning the resultant optimal morphology of premolars are substantial steps before interproximal stripping. Aim: To analyze proximal enamel thickness and crown measurements in maxillary premolars. Methods: The mesiodistal, buccolingual and cervico-occlusal measurements of 40 human maxillary first premolars (20 right, 20 left) were registered with a digital caliper. The teeth were embedded in acrylic resin and sectioned mesiodistally at the level of the contact areas to obtain 1 mm-thick central sections. Enamel thickness on the proximal surfaces was measured using a perfilometer. Measurements were compared by the Student’s t-test (α = 0.05). Results: The mean enamel thickness on the mesial surface was 1.22 mm for the right (± 0.17) and left (± 0.18) sides. On the distal surface, the corresponding values were 1.28 mm (± 0.19) on the right side and 1.39 mm (± 0.17) on the left side. Mean values, in millimeters, for the mesiodistal, buccolingual and cervico-occlusal measurements on both sides ranged from 7.03 (± 0.43) to 7.07 (± 0.48), 9.59 (± 0.48) to 9.65 (± 0.58) and 8.65 (± 0.66) to 8.85 (± 0.65), respectively. There were no significant differences between right and left teeth. However, enamel thickness was significantly greater (p<0.05) on the distal surface. Conclusions: In maxillary first premolars, considering the greater thickness of distal enamel, interproximal stripping during orthodontic treatment may be more pronounced on this surface. The greatest mean value was observed for the buccolingual crown measurement, followed by the cervicoocclusal and mesiodistal dimensions. |
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UNICAMP-8 |
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Brazilian journal of oral sciences (Online) |
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Evaluation of proximal enamel thickness and crown measurements in maxillary first premolarsBicuspidTooth crownDental enamelOrthodonticsOdontologiaEstimating enamel thickness and planning the resultant optimal morphology of premolars are substantial steps before interproximal stripping. Aim: To analyze proximal enamel thickness and crown measurements in maxillary premolars. Methods: The mesiodistal, buccolingual and cervico-occlusal measurements of 40 human maxillary first premolars (20 right, 20 left) were registered with a digital caliper. The teeth were embedded in acrylic resin and sectioned mesiodistally at the level of the contact areas to obtain 1 mm-thick central sections. Enamel thickness on the proximal surfaces was measured using a perfilometer. Measurements were compared by the Student’s t-test (α = 0.05). Results: The mean enamel thickness on the mesial surface was 1.22 mm for the right (± 0.17) and left (± 0.18) sides. On the distal surface, the corresponding values were 1.28 mm (± 0.19) on the right side and 1.39 mm (± 0.17) on the left side. Mean values, in millimeters, for the mesiodistal, buccolingual and cervico-occlusal measurements on both sides ranged from 7.03 (± 0.43) to 7.07 (± 0.48), 9.59 (± 0.48) to 9.65 (± 0.58) and 8.65 (± 0.66) to 8.85 (± 0.65), respectively. There were no significant differences between right and left teeth. However, enamel thickness was significantly greater (p<0.05) on the distal surface. Conclusions: In maxillary first premolars, considering the greater thickness of distal enamel, interproximal stripping during orthodontic treatment may be more pronounced on this surface. The greatest mean value was observed for the buccolingual crown measurement, followed by the cervicoocclusal and mesiodistal dimensions.Universidade Estadual de Campinas2015-11-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/864154110.20396/bjos.v11i1.8641541Brazilian Journal of Oral Sciences; v. 11 n. 1 (2012): Jan./Mar.; 30-35Brazilian Journal of Oral Sciences; Vol. 11 No. 1 (2012): Jan./Mar.; 30-351677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPporhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641541/9043Munhoz, Leni OkamotoFerreira, Flávio VelliniFerreira, Flávio Augusto CotrimFerreira, Rívea Inêsinfo:eu-repo/semantics/openAccess2016-02-25T09:11:07Zoai:ojs.periodicos.sbu.unicamp.br:article/8641541Revistahttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/PUBhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/oaibrjorals@fop.unicamp.br||brjorals@fop.unicamp.br1677-32251677-3217opendoar:2016-02-25T09:11:07Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false |
dc.title.none.fl_str_mv |
Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars |
title |
Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars |
spellingShingle |
Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars Munhoz, Leni Okamoto Bicuspid Tooth crown Dental enamel Orthodontics Odontologia |
title_short |
Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars |
title_full |
Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars |
title_fullStr |
Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars |
title_full_unstemmed |
Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars |
title_sort |
Evaluation of proximal enamel thickness and crown measurements in maxillary first premolars |
author |
Munhoz, Leni Okamoto |
author_facet |
Munhoz, Leni Okamoto Ferreira, Flávio Vellini Ferreira, Flávio Augusto Cotrim Ferreira, Rívea Inês |
author_role |
author |
author2 |
Ferreira, Flávio Vellini Ferreira, Flávio Augusto Cotrim Ferreira, Rívea Inês |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Munhoz, Leni Okamoto Ferreira, Flávio Vellini Ferreira, Flávio Augusto Cotrim Ferreira, Rívea Inês |
dc.subject.por.fl_str_mv |
Bicuspid Tooth crown Dental enamel Orthodontics Odontologia |
topic |
Bicuspid Tooth crown Dental enamel Orthodontics Odontologia |
description |
Estimating enamel thickness and planning the resultant optimal morphology of premolars are substantial steps before interproximal stripping. Aim: To analyze proximal enamel thickness and crown measurements in maxillary premolars. Methods: The mesiodistal, buccolingual and cervico-occlusal measurements of 40 human maxillary first premolars (20 right, 20 left) were registered with a digital caliper. The teeth were embedded in acrylic resin and sectioned mesiodistally at the level of the contact areas to obtain 1 mm-thick central sections. Enamel thickness on the proximal surfaces was measured using a perfilometer. Measurements were compared by the Student’s t-test (α = 0.05). Results: The mean enamel thickness on the mesial surface was 1.22 mm for the right (± 0.17) and left (± 0.18) sides. On the distal surface, the corresponding values were 1.28 mm (± 0.19) on the right side and 1.39 mm (± 0.17) on the left side. Mean values, in millimeters, for the mesiodistal, buccolingual and cervico-occlusal measurements on both sides ranged from 7.03 (± 0.43) to 7.07 (± 0.48), 9.59 (± 0.48) to 9.65 (± 0.58) and 8.65 (± 0.66) to 8.85 (± 0.65), respectively. There were no significant differences between right and left teeth. However, enamel thickness was significantly greater (p<0.05) on the distal surface. Conclusions: In maxillary first premolars, considering the greater thickness of distal enamel, interproximal stripping during orthodontic treatment may be more pronounced on this surface. The greatest mean value was observed for the buccolingual crown measurement, followed by the cervicoocclusal and mesiodistal dimensions. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-11-03 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641541 10.20396/bjos.v11i1.8641541 |
url |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641541 |
identifier_str_mv |
10.20396/bjos.v11i1.8641541 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641541/9043 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Campinas |
publisher.none.fl_str_mv |
Universidade Estadual de Campinas |
dc.source.none.fl_str_mv |
Brazilian Journal of Oral Sciences; v. 11 n. 1 (2012): Jan./Mar.; 30-35 Brazilian Journal of Oral Sciences; Vol. 11 No. 1 (2012): Jan./Mar.; 30-35 1677-3225 reponame:Brazilian journal of oral sciences (Online) instname:Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP |
instname_str |
Universidade Estadual de Campinas (UNICAMP) |
instacron_str |
UNICAMP |
institution |
UNICAMP |
reponame_str |
Brazilian journal of oral sciences (Online) |
collection |
Brazilian journal of oral sciences (Online) |
repository.name.fl_str_mv |
Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP) |
repository.mail.fl_str_mv |
brjorals@fop.unicamp.br||brjorals@fop.unicamp.br |
_version_ |
1800216398909145088 |