Influence of anatomic reference on the buccal contour of prosthetic crowns
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
Outros Autores: | , , , |
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. |
id |
SBPQO-1_c46a75f7c5e79f23225f5cdaf8565f45 |
---|---|
oai_identifier_str |
oai:scielo:S1806-83242009000300002 |
network_acronym_str |
SBPQO-1 |
network_name_str |
Brazilian Oral Research |
repository_id_str |
|
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 |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000300002 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242009000300002 |
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 |
instname_str |
Sociedade Brasileira de Pesquisa Odontológica (SBPqO) |
instacron_str |
SBPQO |
institution |
SBPQO |
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 |
_version_ |
1750318321644863488 |