Oval Versus Circular-Shaped Root Canals: Bond Strength Reached with Varying Post Techniques
| Autor: | Roberta Tarkany Basting, Paula Bernardon, Fabiana Mantovani Gomes França, Flávia Lucisano Botelho do Amaral, Mariana Benedetti Ferreira Webber, Cecilia Pedroso Turssi |
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| Rok vydání: | 2018 |
| Předmět: |
Dental Stress Analysis
Post Technique Root canal post technique 0206 medical engineering Dental Cements Dentistry 02 engineering and technology In Vitro Techniques Biology canal cross-section shape 03 medical and health sciences 0302 clinical medicine stomatognathic system Stereo microscope Adhesive system medicine Dentin Humans Bicuspid General Dentistry Resin cement bond strength business.industry Bond strength Significant difference Dental Bonding 030206 dentistry 020601 biomedical engineering intraradicular dentin Resin Cements Root Canal Therapy medicine.anatomical_structure Glass Dental Pulp Cavity glass fiber post business Post and Core Technique |
| Zdroj: | Brazilian Dental Journal v.29 n.4 2018 Brazilian Dental Journal Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP |
| ISSN: | 1806-4760 0103-6440 |
| Popis: | The aim of this study was to compare the bond strength (BS) of glass fiber posts (GFP) luted to oval and circular-shaped root canals rehabilitated using varying post techniques, at different intraradicular levels. Ninety 16-mm-long roots of human mandibular premolars, classified either as having oval or circular-shaped canals, were endodontically treated and prepared for restoration using one of three different post techniques (n=15): 1) single GFP; 2) resin-relined GFP; 3) main GFP associated with accessory posts. GFPs were luted with a dual polymerizing resin cement (RelyX ARC) after the canal had been treated with a 3-step etch-and-rinse adhesive system (Adper Scothbond Multipurpose). The samples were sectioned into three 1-mm-thick sections, which were differentiated by the root level (cervical, middle and apical) and tested for push-out BS. Assessment of failure mode was made under a stereomicroscope. Data were analyzed using repeated measures three-way ANOVA and Tukey’s test. The root canal cross-section had a significant influence on BS (p |
| Databáze: | OpenAIRE |
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