Low-concentrated nonvital bleaching effect on bond strength of composite resin restorations
Objective: To investigate if short-term dentin bleaching with low-concentrated substances affects the bond strength of immediate resin composite restorations. Material and Methods: The buccal surfaces of fifty molar crowns were ground for dentin exposure and randomly assigned into 5 groups (n=10),...
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| Format: | Article |
| Language: | English |
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Universidade Estadual Paulista
2016-09-01
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| Series: | Brazilian Dental Science |
| Online Access: | https://ojs.ict.unesp.br/index.php/cob/article/view/1273 |
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| author | Fabiana Gomes Néspoli Norberti Bernardineli Roberto Brandão Garcia Clovis Monteiro Bramante Etiene Andrade Munhoz Augusto Bodanezi |
| author_facet | Fabiana Gomes Néspoli Norberti Bernardineli Roberto Brandão Garcia Clovis Monteiro Bramante Etiene Andrade Munhoz Augusto Bodanezi |
| author_sort | Fabiana Gomes Néspoli |
| collection | DOAJ |
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Objective: To investigate if short-term dentin bleaching with low-concentrated substances affects the bond strength of immediate resin composite restorations. Material and Methods: The buccal surfaces of fifty molar crowns were ground for dentin exposure and randomly assigned into 5 groups (n=10), according to the following treatments: sodium perborate + water; sodium perborate + 6% hydrogen peroxide; 6% hydrogen peroxide; 35% hydrogen peroxide (positive control), or no bleaching agent (negative control). The specimens were immediately restored with resin composite. Seven days after treatments, the shear bond test was performed in a universal test machine at a crosshead speed of 0.5 mm/min. Data were analyzed using ANOVA and Tukey’s HSD test (? = 0.05). Results: The shear bond strength mean values for the negative control group were higher than all experimental and positive control groups (p < 0.000), whose differences were not statistically significant (p > 0.05). Conclusion: Short-term dentin bleaching with sodium perborate+water, 6% hydrogen peroxide, or sodium perborate mixed with 6% hydrogen peroxide reduced the shear bond strength of immediate resin composite restorations.
Keywords
Resins, synthetic; Hydrogen peroxide; Shear strength; Esthetics; Tooth.
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| format | Article |
| id | doaj-art-95bd71b51dfb4b41bf33b23722abfc9a |
| institution | Kabale University |
| issn | 2178-6011 |
| language | English |
| publishDate | 2016-09-01 |
| publisher | Universidade Estadual Paulista |
| record_format | Article |
| series | Brazilian Dental Science |
| spelling | doaj-art-95bd71b51dfb4b41bf33b23722abfc9a2025-08-22T18:12:47ZengUniversidade Estadual PaulistaBrazilian Dental Science2178-60112016-09-0119310.14295/bds.2016.v19i3.1273Low-concentrated nonvital bleaching effect on bond strength of composite resin restorationsFabiana Gomes Néspoli0Norberti Bernardineli1Roberto Brandão Garcia2Clovis Monteiro Bramante3Etiene Andrade Munhoz4Augusto Bodanezi5Department of Restorative Dentistry, Endodontics and Dental Materials – Bauru Dental School – Universidade de São Paulo – Bauru – SP – Brazil.Department of Restorative Dentistry, Endodontics and Dental Materials – Bauru Dental School – Universidade de São Paulo – Bauru – SP – Brazil.Department of Restorative Dentistry, Endodontics and Dental Materials – Bauru Dental School – Universidade de São Paulo – Bauru – SP – Brazil.Department of Restorative Dentistry, Endodontics and Dental Materials – Bauru Dental School – Universidade de São Paulo – Bauru – SP – Brazil.Department of Dentistry – Health Sciences Center – Universidade Federal de Santa Catarina – Florianópolis – SC – Brazil.Department of Dentistry – Health Sciences Center – Universidade Federal de Santa Catarina – Florianópolis – SC – Brazil. Objective: To investigate if short-term dentin bleaching with low-concentrated substances affects the bond strength of immediate resin composite restorations. Material and Methods: The buccal surfaces of fifty molar crowns were ground for dentin exposure and randomly assigned into 5 groups (n=10), according to the following treatments: sodium perborate + water; sodium perborate + 6% hydrogen peroxide; 6% hydrogen peroxide; 35% hydrogen peroxide (positive control), or no bleaching agent (negative control). The specimens were immediately restored with resin composite. Seven days after treatments, the shear bond test was performed in a universal test machine at a crosshead speed of 0.5 mm/min. Data were analyzed using ANOVA and Tukey’s HSD test (? = 0.05). Results: The shear bond strength mean values for the negative control group were higher than all experimental and positive control groups (p < 0.000), whose differences were not statistically significant (p > 0.05). Conclusion: Short-term dentin bleaching with sodium perborate+water, 6% hydrogen peroxide, or sodium perborate mixed with 6% hydrogen peroxide reduced the shear bond strength of immediate resin composite restorations. Keywords Resins, synthetic; Hydrogen peroxide; Shear strength; Esthetics; Tooth. https://ojs.ict.unesp.br/index.php/cob/article/view/1273 |
| spellingShingle | Fabiana Gomes Néspoli Norberti Bernardineli Roberto Brandão Garcia Clovis Monteiro Bramante Etiene Andrade Munhoz Augusto Bodanezi Low-concentrated nonvital bleaching effect on bond strength of composite resin restorations Brazilian Dental Science |
| title | Low-concentrated nonvital bleaching effect on bond strength of composite resin restorations |
| title_full | Low-concentrated nonvital bleaching effect on bond strength of composite resin restorations |
| title_fullStr | Low-concentrated nonvital bleaching effect on bond strength of composite resin restorations |
| title_full_unstemmed | Low-concentrated nonvital bleaching effect on bond strength of composite resin restorations |
| title_short | Low-concentrated nonvital bleaching effect on bond strength of composite resin restorations |
| title_sort | low concentrated nonvital bleaching effect on bond strength of composite resin restorations |
| url | https://ojs.ict.unesp.br/index.php/cob/article/view/1273 |
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