Load-application devices: a comparative strain gauge analysis
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000300258&lng=en&nrm=iso&tlng=en http://hdl.handle.net/11449/127366 |
Resumo: | In view of the low loading values commonly employed in dentistry, a load-application device (LAD) was developed as option to the universal testing machine (UTM), using strain gauge analysis. The aim of this study was to develop a load-application device (LAD) and compare the LAD with the UTM apparatus under axial and non-axial loads. An external hexagonal implant was inserted into a polyurethane block and one EsthetiCone abutment was connected to the implant. A plastic prosthetic cylinder was screwed onto the abutment and a conical pattern crown was fabricated using acrylic resin. An impression was made and ten identical standard acrylic resin patterns were obtained from the crown impression, which were cast in nickel-chromium alloy (n=10). Four strain gauges were bonded diametrically around the implant. The specimens were subjected to central (C) and lateral (L) axial loads of 30 kgf, on both devices: G1: LAD/C; G2: LAD/L; G3: UTM/C; G4: UTM/L. The data (με) were statistically analyzed by repeated measures ANOVA and Tukey's test (p<0.05). No statistically significant difference was found between the UTM and LAD devices, regardless of the type of load. It was concluded that the LAD is a reliable alternative, which induces microstrains to implants similar to those obtained with the UTM. |
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Load-application devices: a comparative strain gauge analysisDental implantsDental prosthesisImplant-supported dental prosthesisIn view of the low loading values commonly employed in dentistry, a load-application device (LAD) was developed as option to the universal testing machine (UTM), using strain gauge analysis. The aim of this study was to develop a load-application device (LAD) and compare the LAD with the UTM apparatus under axial and non-axial loads. An external hexagonal implant was inserted into a polyurethane block and one EsthetiCone abutment was connected to the implant. A plastic prosthetic cylinder was screwed onto the abutment and a conical pattern crown was fabricated using acrylic resin. An impression was made and ten identical standard acrylic resin patterns were obtained from the crown impression, which were cast in nickel-chromium alloy (n=10). Four strain gauges were bonded diametrically around the implant. The specimens were subjected to central (C) and lateral (L) axial loads of 30 kgf, on both devices: G1: LAD/C; G2: LAD/L; G3: UTM/C; G4: UTM/L. The data (με) were statistically analyzed by repeated measures ANOVA and Tukey's test (p<0.05). No statistically significant difference was found between the UTM and LAD devices, regardless of the type of load. It was concluded that the LAD is a reliable alternative, which induces microstrains to implants similar to those obtained with the UTM.Considerando os valores relativamente pequenos utilizados em odontologia para os ensaios de carregamento verticais axiais, foi desenvolvido um dispositivo de aplicação de carga (DAC) para substituir a máquina de ensaios universal (EMIC). O objetivo deste estudo foi desenvolver um DAC e compará-lo com a EMIC por meio da utilização de carregamentos axiais e não-axiais. Num bloco de poliuretano foi inserido um implante hexágono externo, o qual foi conectado a um pilar protético esteticone. Sobre o pilar protético foi parafusada uma coifa plástica e um pilar cônico foi modelado em resina acrílica, que foi moldada para a obtenção de dez enceramentos iguais que foram fundidos em níquel cromo. Quatro extensômetros foram diametralmente colados ao redor do implante. Cada corpo de prova foi submetido a cargas axiais central (C) e lateral (L) de 30 kgf, em ambos os dispositivos: G1) DAC/C; G2) DAC/L; G3) EMIC/C; G4) EMIC/L. Os dados (µε) foram analisados estatisticamente pelos testes de ANOVA para medidas repetidas e de Tukey (p<0,05). Não houve diferença estatisticamente significante entre os dispositivos DAC e EMIC, independente do tipo de carga. A aplicação de carga não-axial (NA) determinou um aumento significante de tensões ao redor do implante. Foi concluído que o DAC é uma opção confiável, a qual induz microtensão em implantes de forma semelhante à EMIC.Universidade Estadual Paulista São José dos Campos Dental School Department of Dental Materials and ProsthodonticsUniversidade Estadual Paulista São José dos Campos Dental School Department of Bioscience and Oral DiagnosisUniversidade Estadual Paulista São José dos Campos Dental School Department of Dental Materials and ProsthodonticsUniversidade Estadual Paulista São José dos Campos Dental School Department of Bioscience and Oral DiagnosisFundação Odontológica de Ribeirão PretoUniversidade Estadual Paulista (Unesp)Nishioka, Renato SussumuVasconcellos, Luis Gustavo Oliveira DeJóias, Renata PilliRode, Sigmar de Mello2015-08-26T19:19:21Z2015-08-26T19:19:21Z2015-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article258-262application/pdfhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000300258&lng=en&nrm=iso&tlng=enBrazilian Dental Journal, v. 26, n. 3, p. 258-262, 2015.0103-6440http://hdl.handle.net/11449/12736610.1590/0103-6440201300321S0103-64402015000300258S0103-64402015000300258.pdf005666084228439734221189584299090000-0002-1458-601XSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Dental Journal0,476info:eu-repo/semantics/openAccess2023-12-28T06:14:02Zoai:repositorio.unesp.br:11449/127366Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:29:06.182586Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Load-application devices: a comparative strain gauge analysis |
title |
Load-application devices: a comparative strain gauge analysis |
spellingShingle |
Load-application devices: a comparative strain gauge analysis Nishioka, Renato Sussumu Dental implants Dental prosthesis Implant-supported dental prosthesis |
title_short |
Load-application devices: a comparative strain gauge analysis |
title_full |
Load-application devices: a comparative strain gauge analysis |
title_fullStr |
Load-application devices: a comparative strain gauge analysis |
title_full_unstemmed |
Load-application devices: a comparative strain gauge analysis |
title_sort |
Load-application devices: a comparative strain gauge analysis |
author |
Nishioka, Renato Sussumu |
author_facet |
Nishioka, Renato Sussumu Vasconcellos, Luis Gustavo Oliveira De Jóias, Renata Pilli Rode, Sigmar de Mello |
author_role |
author |
author2 |
Vasconcellos, Luis Gustavo Oliveira De Jóias, Renata Pilli Rode, Sigmar de Mello |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Nishioka, Renato Sussumu Vasconcellos, Luis Gustavo Oliveira De Jóias, Renata Pilli Rode, Sigmar de Mello |
dc.subject.por.fl_str_mv |
Dental implants Dental prosthesis Implant-supported dental prosthesis |
topic |
Dental implants Dental prosthesis Implant-supported dental prosthesis |
description |
In view of the low loading values commonly employed in dentistry, a load-application device (LAD) was developed as option to the universal testing machine (UTM), using strain gauge analysis. The aim of this study was to develop a load-application device (LAD) and compare the LAD with the UTM apparatus under axial and non-axial loads. An external hexagonal implant was inserted into a polyurethane block and one EsthetiCone abutment was connected to the implant. A plastic prosthetic cylinder was screwed onto the abutment and a conical pattern crown was fabricated using acrylic resin. An impression was made and ten identical standard acrylic resin patterns were obtained from the crown impression, which were cast in nickel-chromium alloy (n=10). Four strain gauges were bonded diametrically around the implant. The specimens were subjected to central (C) and lateral (L) axial loads of 30 kgf, on both devices: G1: LAD/C; G2: LAD/L; G3: UTM/C; G4: UTM/L. The data (με) were statistically analyzed by repeated measures ANOVA and Tukey's test (p<0.05). No statistically significant difference was found between the UTM and LAD devices, regardless of the type of load. It was concluded that the LAD is a reliable alternative, which induces microstrains to implants similar to those obtained with the UTM. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-08-26T19:19:21Z 2015-08-26T19:19:21Z 2015-06-01 |
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://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000300258&lng=en&nrm=iso&tlng=en Brazilian Dental Journal, v. 26, n. 3, p. 258-262, 2015. 0103-6440 http://hdl.handle.net/11449/127366 10.1590/0103-6440201300321 S0103-64402015000300258 S0103-64402015000300258.pdf 0056660842284397 3422118958429909 0000-0002-1458-601X |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402015000300258&lng=en&nrm=iso&tlng=en http://hdl.handle.net/11449/127366 |
identifier_str_mv |
Brazilian Dental Journal, v. 26, n. 3, p. 258-262, 2015. 0103-6440 10.1590/0103-6440201300321 S0103-64402015000300258 S0103-64402015000300258.pdf 0056660842284397 3422118958429909 0000-0002-1458-601X |
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 |
258-262 application/pdf |
dc.publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
dc.source.none.fl_str_mv |
SciELO 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 |
|
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1808129325068713984 |