Evaluation of pH, ultimate tensile strength, and micro-shear bond strength of two self-adhesive resin cements
The aim of this study was to evaluate the pH, ultimate tensile strength (UTS), and micro-shear bond strength (µSBS) of two self-adhesive resin cements to enamel and dentin. Sound bovine incisors (n = 10) and two self-adhesive resin cements (i.e., RelyX U-100 and seT PP) were used. The pH of the resi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Pesquisa Odontológica
2014-01-01
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| Series: | Brazilian Oral Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242014000100265&lng=en&tlng=en |
| _version_ | 1828899131014250496 |
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| author | Luciana Artioli COSTA Karina Kato CARNEIRO Auro TANAKA Darlon Martins LIMA José BAUER |
| author_facet | Luciana Artioli COSTA Karina Kato CARNEIRO Auro TANAKA Darlon Martins LIMA José BAUER |
| author_sort | Luciana Artioli COSTA |
| collection | DOAJ |
| description | The aim of this study was to evaluate the pH, ultimate tensile strength (UTS), and micro-shear bond strength (µSBS) of two self-adhesive resin cements to enamel and dentin. Sound bovine incisors (n = 10) and two self-adhesive resin cements (i.e., RelyX U-100 and seT PP) were used. The pH of the resin cements was measured using a pH-indicator paper (n = 3). Specimens for UTS were obtained from an hourglass-shaped mold. For µSBS, cylinders with internal diameter of 0.75 mm and height of 0.5 mm were bonded to the flat enamel and dentin surfaces. Bonded cylinders were tested in the shear mode using a loop wire. The fracture mode was also evaluated. The cement seT PP showed a low pH; U-100 showed significantly higher UTS (49.9 ± 2.0) than seT PP (40.0 ± 2.1) (p < 0.05) and high µSBS to enamel (10.7 ± 3.7). The lowest µSBS was found for seT PP to dentin (0.7 ± 0.6); seT PP to enamel (4.8 ± 1.7), and for U-100 to dentin (7.2 ± 1.9), showing an intermediate µSBS value (p < 0.05). Adhesive failure was the most frequently observed failure mode. The resin cement that presented the lowest pH and UTS also presented the lowest micro-shear bond strength to enamel and dentin. |
| first_indexed | 2024-12-13T15:26:42Z |
| format | Article |
| id | doaj.art-d5b214a2e9934fa691e3538aff1420f5 |
| institution | Directory Open Access Journal |
| issn | 1807-3107 |
| language | English |
| last_indexed | 2024-12-13T15:26:42Z |
| publishDate | 2014-01-01 |
| publisher | Sociedade Brasileira de Pesquisa Odontológica |
| record_format | Article |
| series | Brazilian Oral Research |
| spelling | doaj.art-d5b214a2e9934fa691e3538aff1420f52022-12-21T23:40:20ZengSociedade Brasileira de Pesquisa OdontológicaBrazilian Oral Research1807-31072014-01-012811710.1590/1807-3107BOR-2014.vol28.0055S1806-83242014000100265Evaluation of pH, ultimate tensile strength, and micro-shear bond strength of two self-adhesive resin cementsLuciana Artioli COSTAKarina Kato CARNEIROAuro TANAKADarlon Martins LIMAJosé BAUERThe aim of this study was to evaluate the pH, ultimate tensile strength (UTS), and micro-shear bond strength (µSBS) of two self-adhesive resin cements to enamel and dentin. Sound bovine incisors (n = 10) and two self-adhesive resin cements (i.e., RelyX U-100 and seT PP) were used. The pH of the resin cements was measured using a pH-indicator paper (n = 3). Specimens for UTS were obtained from an hourglass-shaped mold. For µSBS, cylinders with internal diameter of 0.75 mm and height of 0.5 mm were bonded to the flat enamel and dentin surfaces. Bonded cylinders were tested in the shear mode using a loop wire. The fracture mode was also evaluated. The cement seT PP showed a low pH; U-100 showed significantly higher UTS (49.9 ± 2.0) than seT PP (40.0 ± 2.1) (p < 0.05) and high µSBS to enamel (10.7 ± 3.7). The lowest µSBS was found for seT PP to dentin (0.7 ± 0.6); seT PP to enamel (4.8 ± 1.7), and for U-100 to dentin (7.2 ± 1.9), showing an intermediate µSBS value (p < 0.05). Adhesive failure was the most frequently observed failure mode. The resin cement that presented the lowest pH and UTS also presented the lowest micro-shear bond strength to enamel and dentin.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242014000100265&lng=en&tlng=enResin CementsShear StrengthDental EnamelDentinHydrogen-Ion Concentration |
| spellingShingle | Luciana Artioli COSTA Karina Kato CARNEIRO Auro TANAKA Darlon Martins LIMA José BAUER Evaluation of pH, ultimate tensile strength, and micro-shear bond strength of two self-adhesive resin cements Brazilian Oral Research Resin Cements Shear Strength Dental Enamel Dentin Hydrogen-Ion Concentration |
| title | Evaluation of pH, ultimate tensile strength, and micro-shear bond strength of two self-adhesive resin cements |
| title_full | Evaluation of pH, ultimate tensile strength, and micro-shear bond strength of two self-adhesive resin cements |
| title_fullStr | Evaluation of pH, ultimate tensile strength, and micro-shear bond strength of two self-adhesive resin cements |
| title_full_unstemmed | Evaluation of pH, ultimate tensile strength, and micro-shear bond strength of two self-adhesive resin cements |
| title_short | Evaluation of pH, ultimate tensile strength, and micro-shear bond strength of two self-adhesive resin cements |
| title_sort | evaluation of ph ultimate tensile strength and micro shear bond strength of two self adhesive resin cements |
| topic | Resin Cements Shear Strength Dental Enamel Dentin Hydrogen-Ion Concentration |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242014000100265&lng=en&tlng=en |
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