Effect of increased post length due to the presence of the remaining coronal structure on the fracture strength of post-retained restorations
| Autor: | J L, Rodrigues, P I, Seraidarian, D D, Oliveira, W C, Jansen, K P S, Alves, A L, Faria-e-Silva |
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| Rok vydání: | 2015 |
| Předmět: |
Dental Stress Analysis
Tooth Crown Compressive Strength Epoxy Resins Surface Properties Composite Resins Resin Cements Incisor Dental Materials Dental Prosthesis Design Dentin-Bonding Agents Humans Dental Restoration Failure Glass Stress Mechanical Root Canal Preparation Dental Alloys Post and Core Technique |
| Zdroj: | The European journal of prosthodontics and restorative dentistry. 22(3) |
| ISSN: | 0965-7452 |
| Popis: | This study evaluated the effects of the remaining coronal tissue and post type on the fracture strength of incisors. Sixty human maxillary central incisors were sectioned at the cemento-enamel junction or at 2 mm above this junction. The roots received cast cores and posts, fibre posts, or relined fibre posts (n = 10 each). A compressive load was applied over the cores untilfracture. In the absence of coronal structure, the fracture strength did not differ among the post types evaluated. In the presence of remaining coronal structure, the fracture strength was higher in specimens with cast cores and posts. |
| Databáze: | OpenAIRE |
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