Bonding stability of adhesive systems to eroded dentin
This in vitro study evaluated the immediate and 6 months microshear bond strength (µSBS) of different adhesive systems to sound and eroded dentin. Sixty bovine incisors were embedded in acrylic resin and ground to obtain flat buccal dentin surfaces. Specimens were randomly allocated into two groups:...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Pesquisa Odontológica
2015-01-01
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| Series: | Brazilian Oral Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242015000100284&lng=en&tlng=en |
| _version_ | 1818276424252915712 |
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| author | Janaina Barros CRUZ Gabriela BONINI Tathiane Larissa LENZI José Carlos Pettorossi IMPARATO Daniela Prócida RAGGIO |
| author_facet | Janaina Barros CRUZ Gabriela BONINI Tathiane Larissa LENZI José Carlos Pettorossi IMPARATO Daniela Prócida RAGGIO |
| author_sort | Janaina Barros CRUZ |
| collection | DOAJ |
| description | This in vitro study evaluated the immediate and 6 months microshear bond strength (µSBS) of different adhesive systems to sound and eroded dentin. Sixty bovine incisors were embedded in acrylic resin and ground to obtain flat buccal dentin surfaces. Specimens were randomly allocated into two groups: sound dentin (immersion in artificial saliva) and eroded dentin (erosive challenge following a pH cycling model comprising 4 ×/day Sprite Light® drink for 10 days). Then, specimens were reassigned according to the adhesive system: etch-and-rinse adhesive (Adper Single Bond), two-step self-etch system (Clearfil SE Bond), or one-step self-etch adhesive (Adper Easy One). Polyethylene tubes with an internal diameter of 0.76 mm were placed over pre-treated dentin and filled with resin composite (Z250). Half of the specimens were evaluated by the µSBS test after 24 h, and the other half 6 months later, after water storage at 37°C. Failure mode was evaluated using a stereomicroscope (400×). Data were analyzed by three-way repeated measures analysis of variance and Tukey’s post hoc tests (α = 0.05). After 6 months of water aging, marked reductions in µSBS values were observed, irrespective of the substrate. The µSBS values for eroded dentin were lower than those obtained for sound dentin. No difference in bonding effectiveness was observed among adhesive systems. For all groups, adhesive/mixed failure was observed. In conclusion, eroded dentin compromises the bonding quality of adhesive systems over time. |
| first_indexed | 2024-12-12T22:45:25Z |
| format | Article |
| id | doaj.art-543ff0df0b754462ade3e5e5497b8686 |
| institution | Directory Open Access Journal |
| issn | 1807-3107 |
| language | English |
| last_indexed | 2024-12-12T22:45:25Z |
| publishDate | 2015-01-01 |
| publisher | Sociedade Brasileira de Pesquisa Odontológica |
| record_format | Article |
| series | Brazilian Oral Research |
| spelling | doaj.art-543ff0df0b754462ade3e5e5497b86862022-12-22T00:09:13ZengSociedade Brasileira de Pesquisa OdontológicaBrazilian Oral Research1807-31072015-01-012911610.1590/1807-3107BOR-2015.vol29.0088S1806-83242015000100284Bonding stability of adhesive systems to eroded dentinJanaina Barros CRUZGabriela BONINITathiane Larissa LENZIJosé Carlos Pettorossi IMPARATODaniela Prócida RAGGIOThis in vitro study evaluated the immediate and 6 months microshear bond strength (µSBS) of different adhesive systems to sound and eroded dentin. Sixty bovine incisors were embedded in acrylic resin and ground to obtain flat buccal dentin surfaces. Specimens were randomly allocated into two groups: sound dentin (immersion in artificial saliva) and eroded dentin (erosive challenge following a pH cycling model comprising 4 ×/day Sprite Light® drink for 10 days). Then, specimens were reassigned according to the adhesive system: etch-and-rinse adhesive (Adper Single Bond), two-step self-etch system (Clearfil SE Bond), or one-step self-etch adhesive (Adper Easy One). Polyethylene tubes with an internal diameter of 0.76 mm were placed over pre-treated dentin and filled with resin composite (Z250). Half of the specimens were evaluated by the µSBS test after 24 h, and the other half 6 months later, after water storage at 37°C. Failure mode was evaluated using a stereomicroscope (400×). Data were analyzed by three-way repeated measures analysis of variance and Tukey’s post hoc tests (α = 0.05). After 6 months of water aging, marked reductions in µSBS values were observed, irrespective of the substrate. The µSBS values for eroded dentin were lower than those obtained for sound dentin. No difference in bonding effectiveness was observed among adhesive systems. For all groups, adhesive/mixed failure was observed. In conclusion, eroded dentin compromises the bonding quality of adhesive systems over time.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242015000100284&lng=en&tlng=enTooth ErosionDentin-Bonding AgentsShear Strength |
| spellingShingle | Janaina Barros CRUZ Gabriela BONINI Tathiane Larissa LENZI José Carlos Pettorossi IMPARATO Daniela Prócida RAGGIO Bonding stability of adhesive systems to eroded dentin Brazilian Oral Research Tooth Erosion Dentin-Bonding Agents Shear Strength |
| title | Bonding stability of adhesive systems to eroded dentin |
| title_full | Bonding stability of adhesive systems to eroded dentin |
| title_fullStr | Bonding stability of adhesive systems to eroded dentin |
| title_full_unstemmed | Bonding stability of adhesive systems to eroded dentin |
| title_short | Bonding stability of adhesive systems to eroded dentin |
| title_sort | bonding stability of adhesive systems to eroded dentin |
| topic | Tooth Erosion Dentin-Bonding Agents Shear Strength |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242015000100284&lng=en&tlng=en |
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