Efecto del pH de los sistemas adhesivos autoacondicionantes sobre las características adhesivas de resinas compuestas /
Objetivo: El presente estudio tiene como propósito analizar la ultraestructura microscópica de la dentina tratada con sistemas adhesivos autoacondicionantes de distinto pH. Métodos: 8 terceros molares humanos sanos fueron cortados horizontalmente para exponer dentina superficial y fueron distribuido...
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| Format: | Thesis Book |
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Córdoba:
Facultad de Odontología. Universidad Nacional de Córdoba,
2015.
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| Online Access: | Texto completo disponible en el Repositorio Digital de la U.N.C |
Table of Contents:
- 1. Antecedentes del Problema a Investigar. Planteamiento del problema. 3. Bibliografía. 4. Hipótesis. 5. Objetivos. 5.1 Objetivo General. 5.2 Objetivos Específicos. 6. Capítulo 1: Propiedades Mecánicas de los Sistemas Adhesivos Según su pH. 6.1 Resumen. 6.2 Abstract. 6.3 Introducción. 6.4 Metodologías. 6.5 Resultados. 6.6 Discusión. 6.7 Conclusiones. 6.8 Bibliografía. 7. Capítulo 2: Efecto de Adhesivos Autograbantes de Distinto pH sobre las Características Ultraestructurales de la Dentina. 7.1 Resumen. 7.2 Abstract. 7.3 Introducción. 7.4 Metodología. 7.5 Resultados. 7.6 Discusión. 7.7 Conclusiones. 7.8 Bibliografía 8. Capítulo 3: Inhibición de la Actividad Cariogénica de Sistemas Adhesivos Autograbadores De Distinto pH en un Modelo de Caries con Biofilms en Dentina. Resumen. Abstract. Introducción. 8.4 Metodología. 8.5 Resultados. 8.6 Discusión 8.7 Conclusiones. 8.8 Bibliografía. 9. Conclusión.
- Aim: The present study has the purpose to analyze the microscopic ultrastructure of dentin treated with different pH self-etch adhesive systems. Methods: 8 sound human third molars were cut horizontally and randomly assigned in 4 groups (n=2): Adper Single Bond 2 (SB), 3M ESPE, mild pH Go! SDI (Go), moderate pH Adper Prompt L Pop, 3M ESPE (PLP) and strong pH Xeno III, Dentsply (XE). A 4mm width and 1.5mm depth Class I cavity was made in median dentin, standardized with a digital caliper (Model CD-8 UC, Mitutoyo Corp, Japan). Roots were cut 2mm from the cement-enamel junction. Composite resin restorations were performed (Filtek TM Z350 XT, 3M ESPE). Teeth were sectioned bucco-lingually for observation through SEM (Zeiss, model DMS 940). Results: All adhesive systems showed an hybrid layer, self-etch as etch and rinse system (SB). Presence of a smear layer was observed in samples conditioned with self-etching systems Go, PLP and XE. Mid self-etching system did not notoriously modify the smear layer, were few tags were observed. For moderate and strong adhesive systems, a smaller smear layer and higher number of tags were observed, compared with the mild pH system. In the etch and rinse technique the smear layer was not detected and tags were notoriously seen in all the extension. Conclusions: Despite the limitations of this study, it can be concluded that under SEM, the etch and rinse adhesive showed the best features in dentin-resin bond, with a tendency towards lower pH self-etch adhesives showing better ultrastructural characteristics in dentin-resin bond than higher pH adhesives.