Dimensional stability of a novel polyvinyl siloxane impression technique
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/8640906 |
Resumo: | Aim: To introduce a modification of the reline impression technique (MRIT), and compare the dimensional changes of impressions obtained by MRIT and by conventional reline impression technique (CRIT). Methods: An acrylic resin tablet was milled by a CAD-CAM system to simulate three abutments (A, B and C) with different distances among them. The abutments were molded using both impression techniques. For MRIT, before completing the putty silicone polymerization, the relieve procedure was made by compression and it was immediately repositioned to complete the polymerization. Impressions were stored dry at room temperature for different periods (immediately, 1 h, 2 days and 7 days). The distances were obtained by scanning. The differences between the impressions and their respective matrix reference measurements were calculated to determine the dimensional changes. Data were subjected to ANOVA and Tukey’s test (p<0.05). Results: For AB and BC distances, there was no statistically significant difference between CRIT and MRIT (p=0.0597 and p=0.2167, respectively). For AC, there was statistically significant difference between the techniques for the immediate storage time (p=0.006). In general, for CRIT the material showed expansion, while for MRIT it showed contraction. Conclusions: It was verified that the addition silicon impressions obtained by both impression techniques showed dimensional stability, except for the immediate time-point. |
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Brazilian journal of oral sciences (Online) |
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Dimensional stability of a novel polyvinyl siloxane impression techniqueDimensional measurement accuracyDental impression materialsDental impression techniqueLaboratory researchOdontologiaAim: To introduce a modification of the reline impression technique (MRIT), and compare the dimensional changes of impressions obtained by MRIT and by conventional reline impression technique (CRIT). Methods: An acrylic resin tablet was milled by a CAD-CAM system to simulate three abutments (A, B and C) with different distances among them. The abutments were molded using both impression techniques. For MRIT, before completing the putty silicone polymerization, the relieve procedure was made by compression and it was immediately repositioned to complete the polymerization. Impressions were stored dry at room temperature for different periods (immediately, 1 h, 2 days and 7 days). The distances were obtained by scanning. The differences between the impressions and their respective matrix reference measurements were calculated to determine the dimensional changes. Data were subjected to ANOVA and Tukey’s test (p<0.05). Results: For AB and BC distances, there was no statistically significant difference between CRIT and MRIT (p=0.0597 and p=0.2167, respectively). For AC, there was statistically significant difference between the techniques for the immediate storage time (p=0.006). In general, for CRIT the material showed expansion, while for MRIT it showed contraction. Conclusions: It was verified that the addition silicon impressions obtained by both impression techniques showed dimensional stability, except for the immediate time-point.Universidade Estadual de Campinas2015-10-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640906Brazilian Journal of Oral Sciences; v. 13 n. 2 (2014): Apr./Jun.; 118-123Brazilian Journal of Oral Sciences; Vol. 13 No. 2 (2014): Apr./Jun.; 118-1231677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPporhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640906/8443Copyright (c) 2015 Moira Pedroso Leão, Camila Paloma Pinto, Ana Paula Sponchiado, Bárbara Pick Ornaghihttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessLeão, Moira PedrosoPinto, Camila PalomaSponchiado, Ana PaulaOrnaghi, Bárbara Pick2023-09-29T17:10:11Zoai:ojs.periodicos.sbu.unicamp.br:article/8640906Revistahttps://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:2023-09-29T17:10:11Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false |
dc.title.none.fl_str_mv |
Dimensional stability of a novel polyvinyl siloxane impression technique |
title |
Dimensional stability of a novel polyvinyl siloxane impression technique |
spellingShingle |
Dimensional stability of a novel polyvinyl siloxane impression technique Leão, Moira Pedroso Dimensional measurement accuracy Dental impression materials Dental impression technique Laboratory research Odontologia |
title_short |
Dimensional stability of a novel polyvinyl siloxane impression technique |
title_full |
Dimensional stability of a novel polyvinyl siloxane impression technique |
title_fullStr |
Dimensional stability of a novel polyvinyl siloxane impression technique |
title_full_unstemmed |
Dimensional stability of a novel polyvinyl siloxane impression technique |
title_sort |
Dimensional stability of a novel polyvinyl siloxane impression technique |
author |
Leão, Moira Pedroso |
author_facet |
Leão, Moira Pedroso Pinto, Camila Paloma Sponchiado, Ana Paula Ornaghi, Bárbara Pick |
author_role |
author |
author2 |
Pinto, Camila Paloma Sponchiado, Ana Paula Ornaghi, Bárbara Pick |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Leão, Moira Pedroso Pinto, Camila Paloma Sponchiado, Ana Paula Ornaghi, Bárbara Pick |
dc.subject.por.fl_str_mv |
Dimensional measurement accuracy Dental impression materials Dental impression technique Laboratory research Odontologia |
topic |
Dimensional measurement accuracy Dental impression materials Dental impression technique Laboratory research Odontologia |
description |
Aim: To introduce a modification of the reline impression technique (MRIT), and compare the dimensional changes of impressions obtained by MRIT and by conventional reline impression technique (CRIT). Methods: An acrylic resin tablet was milled by a CAD-CAM system to simulate three abutments (A, B and C) with different distances among them. The abutments were molded using both impression techniques. For MRIT, before completing the putty silicone polymerization, the relieve procedure was made by compression and it was immediately repositioned to complete the polymerization. Impressions were stored dry at room temperature for different periods (immediately, 1 h, 2 days and 7 days). The distances were obtained by scanning. The differences between the impressions and their respective matrix reference measurements were calculated to determine the dimensional changes. Data were subjected to ANOVA and Tukey’s test (p<0.05). Results: For AB and BC distances, there was no statistically significant difference between CRIT and MRIT (p=0.0597 and p=0.2167, respectively). For AC, there was statistically significant difference between the techniques for the immediate storage time (p=0.006). In general, for CRIT the material showed expansion, while for MRIT it showed contraction. Conclusions: It was verified that the addition silicon impressions obtained by both impression techniques showed dimensional stability, except for the immediate time-point. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-07 |
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/8640906 |
url |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640906 |
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/8640906/8443 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
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. 13 n. 2 (2014): Apr./Jun.; 118-123 Brazilian Journal of Oral Sciences; Vol. 13 No. 2 (2014): Apr./Jun.; 118-123 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_ |
1800216398122713088 |