Bond strength of dentin submitted to bleaching and restored with different materials
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| Format: | Artículo científico |
| Language: | en |
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Universidade da Região de Joinville
2012
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| _version_ | 1876449474481487872 |
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| author | Nelize Marcelino Pessarello |
| author_facet | Nelize Marcelino Pessarello |
| contents | Bond strength of dentin submitted to bleaching and restored with different materials Nelize Marcelino Pessarello Yara T. Correa Silva-Sousa Fuad Jacob Abi Rached-Junior Aline Evangelista Souza-Gabriel Medicina bleaching adhesives Aesthetics composite resins Introduction: The use of adhesive composite resin with fluoride and with greater fluidity can be favorable to the restoration of the palatal/lingual face of teeth submitted to internal bleaching. Objective: This study evaluated the bond strength of adhesive systems and composite resins to bleached dentin. Material and methods: Forty maxillary canines were sectioned to obtain 40 blocks (5 x 5 mm) of intracoronary dentin. The fragments were included and bleached with 37% carbamide peroxide. After 7 days, the specimens were divided into two groups according to the adhesive system: with (Optibond Solo Plus) and without (Single Bond) fluoride and subdivided into 2 subgroups (n = 10) according to the composite resin: microhybrid (Z250) and flowable (Z350). The restoration was carried out through a bipartite matrix. After 24 hours, the specimens were subjected to shear bond strength test. The data (MPa) were analyzed by ANOVA and Tukey test (¿ = 0.05). Results: The best results (p < 0.05) were obtained for fluoridated adhesive (7.44 ± 2.35) compared with that without fluoride (5.36 ± 2.01); flowable resin (7.76 ± 2.23) performed better than microhybrid resin (5.03 ± 1.72). When the two variables were associated, the highest results were obtained for the specimens restored with fluoridated adhesive and flowable resin(9.04 ± 1.92). Lower results were observed for non-fluoridated adhesive + microhybrid resin ¿ control (4.24 ± 1.59), without statistically significant differences when compared with the fluoridated adhesive + microhybrid resin (5.83 ± 1.52). Conclusion: The combination with fluoridated adhesive and flowable resin increases the shear bond strength of bleached dentin. 2012 artículo científico 1806-7727 https://www.redalyc.org/articulo.oa?id=153023729010 en http://www.redalyc.org/revista.oa?id=1530 RSBO Revista Sul-Brasileira de Odontologia application/pdf Universidade da Região de Joinville RSBO Revista Sul-Brasileira de Odontologia (Brasil) Num.3 Vol.9 |
| format | Artículo científico |
| id | redalyc_153023729010 |
| institution | Redalyc |
| language | en |
| publishDate | 2012 |
| publisher | Universidade da Região de Joinville |
| spellingShingle | Bond strength of dentin submitted to bleaching and restored with different materials Nelize Marcelino Pessarello Medicina bleaching adhesives Aesthetics composite resins Bond strength of dentin submitted to bleaching and restored with different materials Nelize Marcelino Pessarello Yara T. Correa Silva-Sousa Fuad Jacob Abi Rached-Junior Aline Evangelista Souza-Gabriel Medicina bleaching adhesives Aesthetics composite resins Introduction: The use of adhesive composite resin with fluoride and with greater fluidity can be favorable to the restoration of the palatal/lingual face of teeth submitted to internal bleaching. Objective: This study evaluated the bond strength of adhesive systems and composite resins to bleached dentin. Material and methods: Forty maxillary canines were sectioned to obtain 40 blocks (5 x 5 mm) of intracoronary dentin. The fragments were included and bleached with 37% carbamide peroxide. After 7 days, the specimens were divided into two groups according to the adhesive system: with (Optibond Solo Plus) and without (Single Bond) fluoride and subdivided into 2 subgroups (n = 10) according to the composite resin: microhybrid (Z250) and flowable (Z350). The restoration was carried out through a bipartite matrix. After 24 hours, the specimens were subjected to shear bond strength test. The data (MPa) were analyzed by ANOVA and Tukey test (¿ = 0.05). Results: The best results (p < 0.05) were obtained for fluoridated adhesive (7.44 ± 2.35) compared with that without fluoride (5.36 ± 2.01); flowable resin (7.76 ± 2.23) performed better than microhybrid resin (5.03 ± 1.72). When the two variables were associated, the highest results were obtained for the specimens restored with fluoridated adhesive and flowable resin(9.04 ± 1.92). Lower results were observed for non-fluoridated adhesive + microhybrid resin ¿ control (4.24 ± 1.59), without statistically significant differences when compared with the fluoridated adhesive + microhybrid resin (5.83 ± 1.52). Conclusion: The combination with fluoridated adhesive and flowable resin increases the shear bond strength of bleached dentin. 2012 artículo científico 1806-7727 https://www.redalyc.org/articulo.oa?id=153023729010 en http://www.redalyc.org/revista.oa?id=1530 RSBO Revista Sul-Brasileira de Odontologia application/pdf Universidade da Região de Joinville RSBO Revista Sul-Brasileira de Odontologia (Brasil) Num.3 Vol.9 |
| title | Bond strength of dentin submitted to bleaching and restored with different materials |
| topic | Medicina bleaching adhesives Aesthetics composite resins |
| url | https://www.redalyc.org/articulo.oa?id=153023729010 |