Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0103-6440201701342 http://hdl.handle.net/11449/174327 |
Resumo: | There are few informations about the influence of cusp inclination on the fracture strength of implant-supported crowns. The study aimed to evaluate the influence of cusp inclination and retention type on fracture load in implant-supported metal-ceramic single crowns. Sixty crowns were made, classified as cemented and screw-retained with screw access hole (SAH) sealed or not. Standard (33°) and reduced (20°) cusp inclinations were tested for each group (n=10). To support crowns of a mandibular second molar, analogs of external hexagon implants 5.0 were used. The fracture load was measured in a universal testing machine EMIC DL2000 (10 kN load cell; 0.5 mm/min). Two-way ANOVA (retention and cusp inclination) followed by post hoc Tukey’s honest significant difference test was used for the statistical analyses (α=0.05). Crowns with reduced cusp inclination exhibited significantly higher fracture load (p<0.01) than crowns with standard cusp inclination. Cemented crowns showed significantly higher fracture load (p<0.01) than screw-retained crowns. The interaction among these factors was not significant (p>0.05) for the fracture load. The sealing of SAH did not influence the fracture load of screw-retained crowns (p>0.05). In conclusion, fracture load of implant-supported metal-ceramic crowns was influenced by retention and cusp inclination, and there was no influence of the sealing of SAH. |
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Influence of Cusp inclination and type of retention on fracture load of implant-supported crownsDental prosthesisImplant-supported crownsMaterial resistanceThere are few informations about the influence of cusp inclination on the fracture strength of implant-supported crowns. The study aimed to evaluate the influence of cusp inclination and retention type on fracture load in implant-supported metal-ceramic single crowns. Sixty crowns were made, classified as cemented and screw-retained with screw access hole (SAH) sealed or not. Standard (33°) and reduced (20°) cusp inclinations were tested for each group (n=10). To support crowns of a mandibular second molar, analogs of external hexagon implants 5.0 were used. The fracture load was measured in a universal testing machine EMIC DL2000 (10 kN load cell; 0.5 mm/min). Two-way ANOVA (retention and cusp inclination) followed by post hoc Tukey’s honest significant difference test was used for the statistical analyses (α=0.05). Crowns with reduced cusp inclination exhibited significantly higher fracture load (p<0.01) than crowns with standard cusp inclination. Cemented crowns showed significantly higher fracture load (p<0.01) than screw-retained crowns. The interaction among these factors was not significant (p>0.05) for the fracture load. The sealing of SAH did not influence the fracture load of screw-retained crowns (p>0.05). In conclusion, fracture load of implant-supported metal-ceramic crowns was influenced by retention and cusp inclination, and there was no influence of the sealing of SAH.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Dental Materials and Prosthodontics Araraquara Dental School UNESP – Universidade Estadual PaulistaDepartment of Dental Materials and Prosthodontics Araraquara Dental School UNESP – Universidade Estadual PaulistaFAPESP: #2013/01119-1Universidade Estadual Paulista (Unesp)de Melo Rocha, Cibele Oliveira [UNESP]Longhini, Diogo [UNESP]de Paula Pereira, Rodrigo [UNESP]Filho, João Neudenir Arioli [UNESP]2018-12-11T17:10:32Z2018-12-11T17:10:32Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article92-96application/pdfhttp://dx.doi.org/10.1590/0103-6440201701342Brazilian Dental Journal, v. 28, n. 1, p. 92-96, 2017.1806-47600103-6440http://hdl.handle.net/11449/17432710.1590/0103-6440201701342S0103-644020170001000922-s2.0-85014881556S0103-64402017000100092.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Dental Journal0,476info:eu-repo/semantics/openAccess2024-01-17T06:28:07Zoai:repositorio.unesp.br:11449/174327Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:17:03.983136Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns |
title |
Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns |
spellingShingle |
Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns de Melo Rocha, Cibele Oliveira [UNESP] Dental prosthesis Implant-supported crowns Material resistance |
title_short |
Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns |
title_full |
Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns |
title_fullStr |
Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns |
title_full_unstemmed |
Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns |
title_sort |
Influence of Cusp inclination and type of retention on fracture load of implant-supported crowns |
author |
de Melo Rocha, Cibele Oliveira [UNESP] |
author_facet |
de Melo Rocha, Cibele Oliveira [UNESP] Longhini, Diogo [UNESP] de Paula Pereira, Rodrigo [UNESP] Filho, João Neudenir Arioli [UNESP] |
author_role |
author |
author2 |
Longhini, Diogo [UNESP] de Paula Pereira, Rodrigo [UNESP] Filho, João Neudenir Arioli [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Melo Rocha, Cibele Oliveira [UNESP] Longhini, Diogo [UNESP] de Paula Pereira, Rodrigo [UNESP] Filho, João Neudenir Arioli [UNESP] |
dc.subject.por.fl_str_mv |
Dental prosthesis Implant-supported crowns Material resistance |
topic |
Dental prosthesis Implant-supported crowns Material resistance |
description |
There are few informations about the influence of cusp inclination on the fracture strength of implant-supported crowns. The study aimed to evaluate the influence of cusp inclination and retention type on fracture load in implant-supported metal-ceramic single crowns. Sixty crowns were made, classified as cemented and screw-retained with screw access hole (SAH) sealed or not. Standard (33°) and reduced (20°) cusp inclinations were tested for each group (n=10). To support crowns of a mandibular second molar, analogs of external hexagon implants 5.0 were used. The fracture load was measured in a universal testing machine EMIC DL2000 (10 kN load cell; 0.5 mm/min). Two-way ANOVA (retention and cusp inclination) followed by post hoc Tukey’s honest significant difference test was used for the statistical analyses (α=0.05). Crowns with reduced cusp inclination exhibited significantly higher fracture load (p<0.01) than crowns with standard cusp inclination. Cemented crowns showed significantly higher fracture load (p<0.01) than screw-retained crowns. The interaction among these factors was not significant (p>0.05) for the fracture load. The sealing of SAH did not influence the fracture load of screw-retained crowns (p>0.05). In conclusion, fracture load of implant-supported metal-ceramic crowns was influenced by retention and cusp inclination, and there was no influence of the sealing of SAH. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-12-11T17:10:32Z 2018-12-11T17:10:32Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/0103-6440201701342 Brazilian Dental Journal, v. 28, n. 1, p. 92-96, 2017. 1806-4760 0103-6440 http://hdl.handle.net/11449/174327 10.1590/0103-6440201701342 S0103-64402017000100092 2-s2.0-85014881556 S0103-64402017000100092.pdf |
url |
http://dx.doi.org/10.1590/0103-6440201701342 http://hdl.handle.net/11449/174327 |
identifier_str_mv |
Brazilian Dental Journal, v. 28, n. 1, p. 92-96, 2017. 1806-4760 0103-6440 10.1590/0103-6440201701342 S0103-64402017000100092 2-s2.0-85014881556 S0103-64402017000100092.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Dental Journal 0,476 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
92-96 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129503827853312 |