Influence of anatomic reference on the buccal contour of prosthetic crowns

Detalhes bibliográficos
Autor(a) principal: Vasconcelos,Flávia Sabrina Queirós
Data de Publicação: 2009
Outros Autores: Neves,Ana Christina Claro, Silva-Concílio,Laís Regiane da, Cunha,Leonardo Gonçalves, Rode,Sigmar de Mello
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Oral Research
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000300002
Resumo: During clinical practice, when performing prosthetic rehabilitation with single crowns, improper reproduction of the dental contour by the dental laboratory is a common occurrence. Therefore, the present study evaluated the fidelity of the reproduction of the buccal contour in an upper left canine performed by three Dental Prosthesis Technicians (DPT) using the indirect laminate veneer technique. First, the DPTs confected the veneers based on a model obtained from the upper arch of a dental dummy, containing a replica of an upper left canine with a prosthetic preparation for a laminate veneer. Then, the same DPTs received other identical models, now with the replica of the upper left canine with no preparation, to be used as an anatomical reference for confecting the laminate veneers. The laminate veneers were then bonded to the plaster models and had their buccal contour individually measured. Measurements were also made of the buccal contour of the reference canine. The data were analyzed by ANOVA and the t-test (p = 0.05). Results showed 100% of buccal overcontour when the laminate veneers were compared to the reference canine, regardless of which DPT confected the veneer and regardless of using or not the anatomical reference. The DPTs who participated in the present study were unable to acomplish a faithful anatomical reproduction of the buccal contour, creating an overcontour in all samples. This situation may be responsible for increasing the probability of periodontal and esthetic harm in clinical practice.
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spelling Influence of anatomic reference on the buccal contour of prosthetic crownsDental restoration failureDental crownsDental prosthesisDuring clinical practice, when performing prosthetic rehabilitation with single crowns, improper reproduction of the dental contour by the dental laboratory is a common occurrence. Therefore, the present study evaluated the fidelity of the reproduction of the buccal contour in an upper left canine performed by three Dental Prosthesis Technicians (DPT) using the indirect laminate veneer technique. First, the DPTs confected the veneers based on a model obtained from the upper arch of a dental dummy, containing a replica of an upper left canine with a prosthetic preparation for a laminate veneer. Then, the same DPTs received other identical models, now with the replica of the upper left canine with no preparation, to be used as an anatomical reference for confecting the laminate veneers. The laminate veneers were then bonded to the plaster models and had their buccal contour individually measured. Measurements were also made of the buccal contour of the reference canine. The data were analyzed by ANOVA and the t-test (p = 0.05). Results showed 100% of buccal overcontour when the laminate veneers were compared to the reference canine, regardless of which DPT confected the veneer and regardless of using or not the anatomical reference. The DPTs who participated in the present study were unable to acomplish a faithful anatomical reproduction of the buccal contour, creating an overcontour in all samples. This situation may be responsible for increasing the probability of periodontal and esthetic harm in clinical practice.Sociedade Brasileira de Pesquisa Odontológica - SBPqO2009-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000300002Brazilian Oral Research v.23 n.3 2009reponame:Brazilian Oral Researchinstname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)instacron:SBPQO10.1590/S1806-83242009000300002info:eu-repo/semantics/openAccessVasconcelos,Flávia Sabrina QueirósNeves,Ana Christina ClaroSilva-Concílio,Laís Regiane daCunha,Leonardo GonçalvesRode,Sigmar de Melloeng2009-11-04T00:00:00Zoai:scielo:S1806-83242009000300002Revistahttps://www.scielo.br/j/bor/https://old.scielo.br/oai/scielo-oai.phppob@edu.usp.br||bor@sbpqo.org.br1807-31071806-8324opendoar:2009-11-04T00:00Brazilian Oral Research - Sociedade Brasileira de Pesquisa Odontológica (SBPqO)false
dc.title.none.fl_str_mv Influence of anatomic reference on the buccal contour of prosthetic crowns
title Influence of anatomic reference on the buccal contour of prosthetic crowns
spellingShingle Influence of anatomic reference on the buccal contour of prosthetic crowns
Vasconcelos,Flávia Sabrina Queirós
Dental restoration failure
Dental crowns
Dental prosthesis
title_short Influence of anatomic reference on the buccal contour of prosthetic crowns
title_full Influence of anatomic reference on the buccal contour of prosthetic crowns
title_fullStr Influence of anatomic reference on the buccal contour of prosthetic crowns
title_full_unstemmed Influence of anatomic reference on the buccal contour of prosthetic crowns
title_sort Influence of anatomic reference on the buccal contour of prosthetic crowns
author Vasconcelos,Flávia Sabrina Queirós
author_facet Vasconcelos,Flávia Sabrina Queirós
Neves,Ana Christina Claro
Silva-Concílio,Laís Regiane da
Cunha,Leonardo Gonçalves
Rode,Sigmar de Mello
author_role author
author2 Neves,Ana Christina Claro
Silva-Concílio,Laís Regiane da
Cunha,Leonardo Gonçalves
Rode,Sigmar de Mello
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Vasconcelos,Flávia Sabrina Queirós
Neves,Ana Christina Claro
Silva-Concílio,Laís Regiane da
Cunha,Leonardo Gonçalves
Rode,Sigmar de Mello
dc.subject.por.fl_str_mv Dental restoration failure
Dental crowns
Dental prosthesis
topic Dental restoration failure
Dental crowns
Dental prosthesis
description During clinical practice, when performing prosthetic rehabilitation with single crowns, improper reproduction of the dental contour by the dental laboratory is a common occurrence. Therefore, the present study evaluated the fidelity of the reproduction of the buccal contour in an upper left canine performed by three Dental Prosthesis Technicians (DPT) using the indirect laminate veneer technique. First, the DPTs confected the veneers based on a model obtained from the upper arch of a dental dummy, containing a replica of an upper left canine with a prosthetic preparation for a laminate veneer. Then, the same DPTs received other identical models, now with the replica of the upper left canine with no preparation, to be used as an anatomical reference for confecting the laminate veneers. The laminate veneers were then bonded to the plaster models and had their buccal contour individually measured. Measurements were also made of the buccal contour of the reference canine. The data were analyzed by ANOVA and the t-test (p = 0.05). Results showed 100% of buccal overcontour when the laminate veneers were compared to the reference canine, regardless of which DPT confected the veneer and regardless of using or not the anatomical reference. The DPTs who participated in the present study were unable to acomplish a faithful anatomical reproduction of the buccal contour, creating an overcontour in all samples. This situation may be responsible for increasing the probability of periodontal and esthetic harm in clinical practice.
publishDate 2009
dc.date.none.fl_str_mv 2009-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000300002
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-83242009000300002
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.23 n.3 2009
reponame:Brazilian Oral Research
instname:Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
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instacron_str SBPQO
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reponame_str Brazilian Oral Research
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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