Surface roughness and bond strength between Y-TZP and self-adhesive resin cement after air particle abrasion protocols
The aim of this study was to evaluate the influence of different air particle abrasion (APA) protocols - with variations in particle types, duration of application, and the distance between the device tip and the ceramic - on the surface roughness (SR) of zirconia-based ceramic (yttria-stabilized te...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/228214 |
| Acceso en línea: | http://hdl.handle.net/11449/228214 |
| Access Level: | acceso abierto |
| Palabra clave: | Adhesion Air particle abrasion Y-TZP Zirconia |
| Sumario: | The aim of this study was to evaluate the influence of different air particle abrasion (APA) protocols - with variations in particle types, duration of application, and the distance between the device tip and the ceramic - on the surface roughness (SR) of zirconia-based ceramic (yttria-stabilized tetragonal zirconia polycrystal [Y-TZP]) and the shear bond strength (SBS) between Y-TZP and resin cement. In total, 135 sintered Y-TZP blocks were polished and divided into 9 groups according to 3 factors: particle (alumina vs alumina coated with silica), duration (5 vs 10 seconds), and distance (contact vs 10 mm away). All 3 factors significantly influenced the SR values between the experimental groups and the control group. For SBS, only the particle type was a statistically significant factor. Results showed that air particle abrasion with silica-coated alumina resulted in higher SBS, even though the SR values associated with those groups were not the highest. |
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