Can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion?
Aim: The study investigated the effect of using surface protection agents in the adaptation of external and internal margins of restorations subjected to simulated erosion. Methods: Cavities with margins in dentin were prepared in bovine incisors (n=120). Adhesive restorations were placed using a t...
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Universidade Estadual de Campinas
2019-09-01
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doaj-028116a6dc6e43578ddf76074f4e01752021-07-14T18:46:06ZengUniversidade Estadual de CampinasBrazilian Journal of Oral Sciences1677-32252019-09-011810.20396/bjos.v18i0.8656601Can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion?Luana Mendonça Dias0Janaina Emanuela Damasceno1Patricia Akemi Nishitani Shibasaki2Max José Pimenta Lima3Roberto Paulo Correia de Araújo4Richard Mark Foxton5Andrea Nóbrega Cavalcanti6School of Medicine and Public Health of BahiaSchool of Medicine and Public Health of BahiaSchool of Medicine and Public Health of BahiaFederal University of BahiaFederal University of BahiaKing’s College LondonFederal University of Bahia Aim: The study investigated the effect of using surface protection agents in the adaptation of external and internal margins of restorations subjected to simulated erosion. Methods: Cavities with margins in dentin were prepared in bovine incisors (n=120). Adhesive restorations were placed using a three-step etch&rinse adhesive system and nanofilled composite resin. The specimens were divided into four groups, according to the surface protection: negative control, topical application of fluoride (TAF), resin sealant and resin-modified glass ionomer varnish (RMGI varnish). Afterwards, they were divided into three sub-groups, according to the exposure to a simulated solution of gastric acid (DES) (5% HCl, pH=2,2) and subsequent remineralization (RE): negative control, 9 and 18 cycles of DES-RE. The evaluation of the tooth-restoration interface was performed on the internal and frontal images with the aid of a stereoscopic microscope (15x), and the percentage of continuous margins without adhesive failures was quantified. Results: In the external margins, only those groups with surface protection using sealants (resin and glass-ionomer) did not exhibit a significant decrease in the percentage of continuous margins after the erosive challenges. After 18 cycles of DES-RE, the use of resin-modified glass ionomer varnish resulted in the highest percentage of continuous margins. Conclusion: It was concluded that physically covering the surfaces with a sealing agent preserved the marginal adaptation of composite resin restorations exposed to endogenous erosive challenges. https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656601DentinErosionAcid gastric. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Luana Mendonça Dias Janaina Emanuela Damasceno Patricia Akemi Nishitani Shibasaki Max José Pimenta Lima Roberto Paulo Correia de Araújo Richard Mark Foxton Andrea Nóbrega Cavalcanti |
spellingShingle |
Luana Mendonça Dias Janaina Emanuela Damasceno Patricia Akemi Nishitani Shibasaki Max José Pimenta Lima Roberto Paulo Correia de Araújo Richard Mark Foxton Andrea Nóbrega Cavalcanti Can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion? Brazilian Journal of Oral Sciences Dentin Erosion Acid gastric. |
author_facet |
Luana Mendonça Dias Janaina Emanuela Damasceno Patricia Akemi Nishitani Shibasaki Max José Pimenta Lima Roberto Paulo Correia de Araújo Richard Mark Foxton Andrea Nóbrega Cavalcanti |
author_sort |
Luana Mendonça Dias |
title |
Can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion? |
title_short |
Can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion? |
title_full |
Can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion? |
title_fullStr |
Can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion? |
title_full_unstemmed |
Can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion? |
title_sort |
can surface protection prevent damage in margins of composite resin restorations after simulated endogenous erosion? |
publisher |
Universidade Estadual de Campinas |
series |
Brazilian Journal of Oral Sciences |
issn |
1677-3225 |
publishDate |
2019-09-01 |
description |
Aim: The study investigated the effect of using surface protection agents in the adaptation of external and internal margins of restorations subjected to simulated erosion. Methods: Cavities with margins in dentin were prepared in bovine incisors (n=120). Adhesive restorations were placed using a three-step etch&rinse adhesive system and nanofilled composite resin. The specimens were divided into four groups, according to the surface protection: negative control, topical application of fluoride (TAF), resin sealant and resin-modified glass ionomer varnish (RMGI varnish). Afterwards, they were divided into three sub-groups, according to the exposure to a simulated solution of gastric acid (DES) (5% HCl, pH=2,2) and subsequent remineralization (RE): negative control, 9 and 18 cycles of DES-RE. The evaluation of the tooth-restoration interface was performed on the internal and frontal images with the aid of a stereoscopic microscope (15x), and the percentage of continuous margins without adhesive failures was quantified. Results: In the external margins, only those groups with surface protection using sealants (resin and glass-ionomer) did not exhibit a significant decrease in the percentage of continuous margins after the erosive challenges. After 18 cycles of DES-RE, the use of resin-modified glass ionomer varnish resulted in the highest percentage of continuous margins. Conclusion: It was concluded that physically covering the surfaces with a sealing agent preserved the marginal adaptation of composite resin restorations exposed to endogenous erosive challenges.
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topic |
Dentin Erosion Acid gastric. |
url |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656601 |
work_keys_str_mv |
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