Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systems
Aim: To evaluate the effects of 10% NaOCl gel application on the dentin bond strengths and morphology of resin-dentin interfaces formed by three adhesives. Methods: Two etch-and-rinse adhesives (One-Step Plus, Bisco Inc. and Clearfil Photo Bond, Kuraray Noritake Dental) and one self-etch adhesive (C...
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Campinas
2016-09-01
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| Series: | Brazilian Journal of Oral Sciences |
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| Online Access: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8646142 |
| _version_ | 1818385995619368960 |
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| author | Marina Di Francescantonio Hamid Nurrohman Tomohiro Takagaki Toru Nikaido Junji Tagami Marcelo Giannini |
| author_facet | Marina Di Francescantonio Hamid Nurrohman Tomohiro Takagaki Toru Nikaido Junji Tagami Marcelo Giannini |
| author_sort | Marina Di Francescantonio |
| collection | DOAJ |
| description | Aim: To evaluate the effects of 10% NaOCl gel application on the dentin bond strengths and morphology of resin-dentin interfaces formed by three adhesives. Methods: Two etch-and-rinse adhesives (One-Step Plus, Bisco Inc. and Clearfil Photo Bond, Kuraray Noritake Dental) and one self-etch adhesive (Clearfil SE Bond, Kuraray Noritake Dental) were applied on dentin according to the manufacturers’ instructions or after the treatment with 10% NaOCl (ED-Gel, Kuraray Noritake Dental) for 60 s. For interfacial analysis, specimens were subjected to acid-base challenge and observed by SEM to identify the formation of the acid-base resistant zone (ABRZ). For microtensile bond strength, the same groups were investigated and the restored teeth were thermocycled (5,000 cycles) or not before testing. Bond strength data were subjected to two-way ANOVA and Tukey’s test (p<0.05). Results: NaOCl application affected the bond strengths for One-Step Plus and Clearfil Photo Bond. Thermocycling reduced the bond strengths for Clearfil Photo Bond and Clearfil SE Bond when used after NaOCl application and One-Step Plus when used as recommended by manufacturer. ABRZ was observed adjacent to the hybrid layer for self-etch primer. The etch-and-rinse systems showed external lesions after acid-base challenge and no ABRZ formation when applied according to manufacturer’s instructions. Conclusions:10% NaOCl changed the morphology of the bonding interfaces and its use with etch-&-rinse adhesives reduced the dentin bond strength. Formation of ABRZ was material-dependent and the interface morphologies were different among the tested materials. |
| first_indexed | 2024-12-14T03:47:01Z |
| format | Article |
| id | doaj.art-2cdaddbc52544df4934ff0d37c1f2e80 |
| institution | Directory Open Access Journal |
| issn | 1677-3225 |
| language | English |
| last_indexed | 2024-12-14T03:47:01Z |
| publishDate | 2016-09-01 |
| publisher | Universidade Estadual de Campinas |
| record_format | Article |
| series | Brazilian Journal of Oral Sciences |
| spelling | doaj.art-2cdaddbc52544df4934ff0d37c1f2e802022-12-21T23:18:20ZengUniversidade Estadual de CampinasBrazilian Journal of Oral Sciences1677-32252016-09-0114410.20396/bjos.v14i4.8646142Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systemsMarina Di Francescantonio0Hamid Nurrohman1Tomohiro Takagaki2Toru Nikaido3Junji Tagami4Marcelo Giannini5Universidade Estadual de CampinasTokyo Medical and Dental UniversityTokyo Medical and Dental UniversityTokyo Medical and Dental UniversityTokyo Medical and Dental UniversityUniversidade Estadual de CampinasAim: To evaluate the effects of 10% NaOCl gel application on the dentin bond strengths and morphology of resin-dentin interfaces formed by three adhesives. Methods: Two etch-and-rinse adhesives (One-Step Plus, Bisco Inc. and Clearfil Photo Bond, Kuraray Noritake Dental) and one self-etch adhesive (Clearfil SE Bond, Kuraray Noritake Dental) were applied on dentin according to the manufacturers’ instructions or after the treatment with 10% NaOCl (ED-Gel, Kuraray Noritake Dental) for 60 s. For interfacial analysis, specimens were subjected to acid-base challenge and observed by SEM to identify the formation of the acid-base resistant zone (ABRZ). For microtensile bond strength, the same groups were investigated and the restored teeth were thermocycled (5,000 cycles) or not before testing. Bond strength data were subjected to two-way ANOVA and Tukey’s test (p<0.05). Results: NaOCl application affected the bond strengths for One-Step Plus and Clearfil Photo Bond. Thermocycling reduced the bond strengths for Clearfil Photo Bond and Clearfil SE Bond when used after NaOCl application and One-Step Plus when used as recommended by manufacturer. ABRZ was observed adjacent to the hybrid layer for self-etch primer. The etch-and-rinse systems showed external lesions after acid-base challenge and no ABRZ formation when applied according to manufacturer’s instructions. Conclusions:10% NaOCl changed the morphology of the bonding interfaces and its use with etch-&-rinse adhesives reduced the dentin bond strength. Formation of ABRZ was material-dependent and the interface morphologies were different among the tested materials.https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8646142Dental bonding. DentinDental caries susceptibility. Dentin-bonding agents. Sodium hypochlorite. Scanning electron microscopy |
| spellingShingle | Marina Di Francescantonio Hamid Nurrohman Tomohiro Takagaki Toru Nikaido Junji Tagami Marcelo Giannini Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systems Brazilian Journal of Oral Sciences Dental bonding. Dentin Dental caries susceptibility. Dentin-bonding agents. Sodium hypochlorite. Scanning electron microscopy |
| title | Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systems |
| title_full | Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systems |
| title_fullStr | Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systems |
| title_full_unstemmed | Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systems |
| title_short | Sodium hypochlorite effects on dentin bond strength and acid-base resistant zone formation by adhesive systems |
| title_sort | sodium hypochlorite effects on dentin bond strength and acid base resistant zone formation by adhesive systems |
| topic | Dental bonding. Dentin Dental caries susceptibility. Dentin-bonding agents. Sodium hypochlorite. Scanning electron microscopy |
| url | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8646142 |
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