In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/924 |
Resumo: | Objectives: To evaluate “in vitro” the degree of marginal leakage in class V cavities irradiated with Nd:YAG laser onto enamel and dentin pretreated with bonding system (Single Bond, 3M ESPE) without light-curing. Material & Methods: Class V cavities were performed and standardized in 60 bovine incisors. After the acid etching, the teeth were divided into three groups: G1 – Application of bonding system, irradiation with Nd:YAG laser at 140 mJ/pulse without light-curing. G2 – Application of bonding system, irradiation with Nd:YAG laser at 200 mJ/pulse without light-curing. Group C - Application of bonding system and light-curing. Next, resin composite restorations were executed and thermocycled at alternated baths from 2 to 50 ºC (± 2 ºC), totalizing 500 cycles. To assess the microleakage, the teeth were submersed into 50% silver nitrate solution for 24 h, cut at 1 mm of thickness and analyzed through stereoscopy. The following leakage criterion scores were employed: 0 – none leakage; 1 – gingival or incisal wall; 2 – axial wall towards the pulp. Results : It was observed a high leakage frequency with score 1 among the experimental conditions. There was a higher predominance of score 2 leakage for control group at cementum. Concerning to enamel and cementum, Group C was similar to G1. By comparing control group with G2, and G1 with G2, it was verified statistically significant differences. Conclusion: The laser energy provided a reduction of the marginal leakage at enamel and dentin/ cementum; however, the energy density increase resulted in smaller marginal leakage at enamel and dentin/cementum.KeywordsNd-YAG Laser; Energy; Marginal leakage; Enamel; Dentin. |
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oai:ojs.pkp.sfu.ca:article/924 |
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UNESP-20 |
network_name_str |
Brazilian Dental Science |
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spelling |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densitiesObjectives: To evaluate “in vitro” the degree of marginal leakage in class V cavities irradiated with Nd:YAG laser onto enamel and dentin pretreated with bonding system (Single Bond, 3M ESPE) without light-curing. Material & Methods: Class V cavities were performed and standardized in 60 bovine incisors. After the acid etching, the teeth were divided into three groups: G1 – Application of bonding system, irradiation with Nd:YAG laser at 140 mJ/pulse without light-curing. G2 – Application of bonding system, irradiation with Nd:YAG laser at 200 mJ/pulse without light-curing. Group C - Application of bonding system and light-curing. Next, resin composite restorations were executed and thermocycled at alternated baths from 2 to 50 ºC (± 2 ºC), totalizing 500 cycles. To assess the microleakage, the teeth were submersed into 50% silver nitrate solution for 24 h, cut at 1 mm of thickness and analyzed through stereoscopy. The following leakage criterion scores were employed: 0 – none leakage; 1 – gingival or incisal wall; 2 – axial wall towards the pulp. Results : It was observed a high leakage frequency with score 1 among the experimental conditions. There was a higher predominance of score 2 leakage for control group at cementum. Concerning to enamel and cementum, Group C was similar to G1. By comparing control group with G2, and G1 with G2, it was verified statistically significant differences. Conclusion: The laser energy provided a reduction of the marginal leakage at enamel and dentin/ cementum; however, the energy density increase resulted in smaller marginal leakage at enamel and dentin/cementum.KeywordsNd-YAG Laser; Energy; Marginal leakage; Enamel; Dentin.Institute of Science and Technology of São José dos Campos2013-12-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.ict.unesp.br/index.php/cob/article/view/92410.14295/bds.2013.v16i4.924Brazilian Dental Science; Vol. 16 No. 4 (2013): Oct. - Dec. / 2013 - Published December 2013; 19-27Brazilian Dental Science; v. 16 n. 4 (2013): Oct. - Dec. / 2013 - Published December 2013; 19-272178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/924/834Aveiro, Rafael ZacateiYui, Karen Cristina Kazueda Silva, Tânia MaraGonçalves, Lucélia LemesEsteves, Stella Renata Machado SilvaGonçalves, Sérgio Eduardo de Paivainfo:eu-repo/semantics/openAccess2020-01-28T12:35:36Zoai:ojs.pkp.sfu.ca:article/924Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:29:54.938337Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities |
title |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities |
spellingShingle |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities Aveiro, Rafael Zacatei |
title_short |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities |
title_full |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities |
title_fullStr |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities |
title_full_unstemmed |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities |
title_sort |
In vitro evaluation of marginal leakage at enamel and dentin treated by different laser densities |
author |
Aveiro, Rafael Zacatei |
author_facet |
Aveiro, Rafael Zacatei Yui, Karen Cristina Kazue da Silva, Tânia Mara Gonçalves, Lucélia Lemes Esteves, Stella Renata Machado Silva Gonçalves, Sérgio Eduardo de Paiva |
author_role |
author |
author2 |
Yui, Karen Cristina Kazue da Silva, Tânia Mara Gonçalves, Lucélia Lemes Esteves, Stella Renata Machado Silva Gonçalves, Sérgio Eduardo de Paiva |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Aveiro, Rafael Zacatei Yui, Karen Cristina Kazue da Silva, Tânia Mara Gonçalves, Lucélia Lemes Esteves, Stella Renata Machado Silva Gonçalves, Sérgio Eduardo de Paiva |
description |
Objectives: To evaluate “in vitro” the degree of marginal leakage in class V cavities irradiated with Nd:YAG laser onto enamel and dentin pretreated with bonding system (Single Bond, 3M ESPE) without light-curing. Material & Methods: Class V cavities were performed and standardized in 60 bovine incisors. After the acid etching, the teeth were divided into three groups: G1 – Application of bonding system, irradiation with Nd:YAG laser at 140 mJ/pulse without light-curing. G2 – Application of bonding system, irradiation with Nd:YAG laser at 200 mJ/pulse without light-curing. Group C - Application of bonding system and light-curing. Next, resin composite restorations were executed and thermocycled at alternated baths from 2 to 50 ºC (± 2 ºC), totalizing 500 cycles. To assess the microleakage, the teeth were submersed into 50% silver nitrate solution for 24 h, cut at 1 mm of thickness and analyzed through stereoscopy. The following leakage criterion scores were employed: 0 – none leakage; 1 – gingival or incisal wall; 2 – axial wall towards the pulp. Results : It was observed a high leakage frequency with score 1 among the experimental conditions. There was a higher predominance of score 2 leakage for control group at cementum. Concerning to enamel and cementum, Group C was similar to G1. By comparing control group with G2, and G1 with G2, it was verified statistically significant differences. Conclusion: The laser energy provided a reduction of the marginal leakage at enamel and dentin/ cementum; however, the energy density increase resulted in smaller marginal leakage at enamel and dentin/cementum.KeywordsNd-YAG Laser; Energy; Marginal leakage; Enamel; Dentin. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-05 |
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://ojs.ict.unesp.br/index.php/cob/article/view/924 10.14295/bds.2013.v16i4.924 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/924 |
identifier_str_mv |
10.14295/bds.2013.v16i4.924 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/924/834 |
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 |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 16 No. 4 (2013): Oct. - Dec. / 2013 - Published December 2013; 19-27 Brazilian Dental Science; v. 16 n. 4 (2013): Oct. - Dec. / 2013 - Published December 2013; 19-27 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346898892980224 |