Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength
| Autor: | Marília Pivetta RIPPE, Manuela Favarin SANTINI, Carlos Alexandre Souza BIER, Paolo BALDISSARA, Luiz Felipe VALANDRO |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Journal of Applied Oral Science, Vol 22, Iss 3, Pp 165-173 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1678-7765 1678-7757 |
| DOI: | 10.1590/1678-775720130051 |
| Popis: | Objective: To evaluate the impact of the type of root canal preparation, intraradicular post and mechanical cycling on the fracture strength of roots. Material and Methods: eighty human single rooted teeth were divided into 8 groups according to the instruments used for root canal preparation (manual or rotary instruments), the type of intraradicular post (fiber posts- FRC and cast post and core- CPC) and the use of mechanical cycling (MC) as follows: Manual and FRC; Manual, FRC and MC; Manual and CPC; Manual, CPC and MC; Rotary and FRC; Rotary, FRC and MC; Rotary and CPC; Rotary, CPC and MC. The filling was performed by lateral compactation. All root canals were prepared for a post with a 10 mm length, using the custom #2 bur of the glass fiber post system. For mechanical cycling, the protocol was applied as follows: an angle of incidence of 45°, 37°C, 88 N, 4 Hz, 2 million pulses. All groups were submitted to fracture strength test in a 45° device with 1 mm/ min cross-head speed until failure occurred. Results: The 3-way ANOVA showed that the root canal preparation strategy (p |
| Databáze: | Directory of Open Access Journals |
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