Comparison of three digital systems in relation to the optical density of glass ionomer cements
Autor(a) principal: | |
---|---|
Data de Publicação: | 2007 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista odonto ciência (Online) |
Texto Completo: | https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2023 |
Resumo: | The aim of this study was to compare three digital systems – two optical plates and a sensor – in relation to the optic density of three restoring glass ionomer cements. The samples confectioned with each one of the materials in thicknesses of 1, 2, 3 and 4 mm were positioned between the two halves of an extracted and sectioned premolar tooth crown and radiographed. The measures of optical density, in values of pixels, had been carried through in accordance with the specifications of the corresponding system used and analyzed by means of the nonparametric Friedman’s Test (α = 1%). The results had shown significant differences in the averages of the values of optical density among the digital systems. The great optical density had been determined in CYGNUS system, followed for the DENOPTIX and DIGORA (p ≤ 0.01). However, there were not statistical differences among variations of optical density associated with the increase in the thickness of the sample. Therefore, it can be concluded that, although the differences in the optical density, the tested systems present similar results when they express the variation in function of the thickness of the used material. UNITERMS: digital radiography; glass ionomer cements; radiopacity |
id |
PUC_RS-22_413ea98aedb78749ac2db075c234fb16 |
---|---|
oai_identifier_str |
oai:ojs.revistaseletronicas.pucrs.br:article/2023 |
network_acronym_str |
PUC_RS-22 |
network_name_str |
Revista odonto ciência (Online) |
repository_id_str |
|
spelling |
Comparison of three digital systems in relation to the optical density of glass ionomer cementsComparação de três sistemas digitais em relação à densidade óptica de cimentos de ionômero de vidrodigital radiographyglass ionomer cementsradiopacityThe aim of this study was to compare three digital systems – two optical plates and a sensor – in relation to the optic density of three restoring glass ionomer cements. The samples confectioned with each one of the materials in thicknesses of 1, 2, 3 and 4 mm were positioned between the two halves of an extracted and sectioned premolar tooth crown and radiographed. The measures of optical density, in values of pixels, had been carried through in accordance with the specifications of the corresponding system used and analyzed by means of the nonparametric Friedman’s Test (α = 1%). The results had shown significant differences in the averages of the values of optical density among the digital systems. The great optical density had been determined in CYGNUS system, followed for the DENOPTIX and DIGORA (p ≤ 0.01). However, there were not statistical differences among variations of optical density associated with the increase in the thickness of the sample. Therefore, it can be concluded that, although the differences in the optical density, the tested systems present similar results when they express the variation in function of the thickness of the used material. UNITERMS: digital radiography; glass ionomer cements; radiopacityObjetivo: O objetivo deste estudo foi comparar três sistemas digitais, dois do tipo placas ópticas e um sensor, quanto à densidade óptica de três cimentos de ionômero de vidro restauradores. Materiais e Método: Foram obtidas imagens radiográficas dos corpos de prova confeccionados com cada um dos materiais, em espessuras de 1, 2, 3 e 4 mm, posicionados entre as metades de um pré-molar humano, extraído e seccionado no sentido mésio-distal. As medidas de densidade óptica, em valores de pixels, foram realizadas de acordo com as especificações do sistema correspondente ao receptor de imagem utilizado e analisadas por meio do teste não-paramétrico de Friedman (α = 1%). Resultados: Os resultados mostraram diferenças significativas nas médias dos valores de densidade óptica entre os sistemas digitais. As maiores médias foram determinadas no sistema CYGNUS, seguido pelo DENOPTIX e menores valores para o DIGORA (p ≤ 0,01). Entretanto, não se observou diferenças estatísticas quando comparadas as médias das variações de densidade óptica decorrentes do aumento na espessura do corpo de prova. Conclusão: Portanto, pode-se concluir que, apesar de diferirem quanto aos valores de densidade óptica, os sistemas testados apresentam padrões semelhantes quando expressam a variação em função da espessura do material utilizado. UNITERMOS: radiografia digital; cimentos de ionômero de vidro; radiopacidade.EDIPUCRS - Editora Universitária da PUCRS2007-10-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articleapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2023Revista Odonto Ciência; Vol. 22 No. 57 (2007); 233 - 237Revista Odonto Ciência; v. 22 n. 57 (2007); 233 - 2371980-65230102-9460reponame:Revista odonto ciência (Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSenghttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2023/1527Hehn, LisianeMahl, Célia Regina WinckFreitas, Maria Perpétua MotaConde, AlexandreVeeck, Elaine BauerFontanella, Vaniainfo:eu-repo/semantics/openAccess2013-11-18T11:08:39Zoai:ojs.revistaseletronicas.pucrs.br:article/2023Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-18T11:08:39Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false |
dc.title.none.fl_str_mv |
Comparison of three digital systems in relation to the optical density of glass ionomer cements Comparação de três sistemas digitais em relação à densidade óptica de cimentos de ionômero de vidro |
title |
Comparison of three digital systems in relation to the optical density of glass ionomer cements |
spellingShingle |
Comparison of three digital systems in relation to the optical density of glass ionomer cements Hehn, Lisiane digital radiography glass ionomer cements radiopacity |
title_short |
Comparison of three digital systems in relation to the optical density of glass ionomer cements |
title_full |
Comparison of three digital systems in relation to the optical density of glass ionomer cements |
title_fullStr |
Comparison of three digital systems in relation to the optical density of glass ionomer cements |
title_full_unstemmed |
Comparison of three digital systems in relation to the optical density of glass ionomer cements |
title_sort |
Comparison of three digital systems in relation to the optical density of glass ionomer cements |
author |
Hehn, Lisiane |
author_facet |
Hehn, Lisiane Mahl, Célia Regina Winck Freitas, Maria Perpétua Mota Conde, Alexandre Veeck, Elaine Bauer Fontanella, Vania |
author_role |
author |
author2 |
Mahl, Célia Regina Winck Freitas, Maria Perpétua Mota Conde, Alexandre Veeck, Elaine Bauer Fontanella, Vania |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Hehn, Lisiane Mahl, Célia Regina Winck Freitas, Maria Perpétua Mota Conde, Alexandre Veeck, Elaine Bauer Fontanella, Vania |
dc.subject.por.fl_str_mv |
digital radiography glass ionomer cements radiopacity |
topic |
digital radiography glass ionomer cements radiopacity |
description |
The aim of this study was to compare three digital systems – two optical plates and a sensor – in relation to the optic density of three restoring glass ionomer cements. The samples confectioned with each one of the materials in thicknesses of 1, 2, 3 and 4 mm were positioned between the two halves of an extracted and sectioned premolar tooth crown and radiographed. The measures of optical density, in values of pixels, had been carried through in accordance with the specifications of the corresponding system used and analyzed by means of the nonparametric Friedman’s Test (α = 1%). The results had shown significant differences in the averages of the values of optical density among the digital systems. The great optical density had been determined in CYGNUS system, followed for the DENOPTIX and DIGORA (p ≤ 0.01). However, there were not statistical differences among variations of optical density associated with the increase in the thickness of the sample. Therefore, it can be concluded that, although the differences in the optical density, the tested systems present similar results when they express the variation in function of the thickness of the used material. UNITERMS: digital radiography; glass ionomer cements; radiopacity |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-10-17 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2023 |
url |
https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2023 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2023/1527 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
EDIPUCRS - Editora Universitária da PUCRS |
publisher.none.fl_str_mv |
EDIPUCRS - Editora Universitária da PUCRS |
dc.source.none.fl_str_mv |
Revista Odonto Ciência; Vol. 22 No. 57 (2007); 233 - 237 Revista Odonto Ciência; v. 22 n. 57 (2007); 233 - 237 1980-6523 0102-9460 reponame:Revista odonto ciência (Online) instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) instacron:PUC_RS |
instname_str |
Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) |
instacron_str |
PUC_RS |
institution |
PUC_RS |
reponame_str |
Revista odonto ciência (Online) |
collection |
Revista odonto ciência (Online) |
repository.name.fl_str_mv |
Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) |
repository.mail.fl_str_mv |
||odontociencia@pucrs.br |
_version_ |
1754820873771024384 |