Effect of Resin Cement Pre-heating on the Push-out Bond Strength of Fiber Post to Root Canal Dentin
| Autor: | Parnian Alizadeh Oskoee, Ahmad Nooroloyouni, Fatemeh Pornaghi Azar, Jafar Sajjadi Oskoee, Ahmad Pirzadeh Ashraf |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Journal of Dental Research, Dental Clinics, Dental Prospects, Vol 9, Iss 4, Pp 233-238 (2015) |
| Druh dokumentu: | article |
| ISSN: | 2008-210X 2008-2118 |
| DOI: | 10.15171/joddd.2015.042 |
| Popis: | Background and aims. Various factors influence the interfacial bond between the fiber posts and root canal dentin. The aim of the present study was to evaluate the effect of pre-warming of resin cement on the push-out bond strength of fiber posts to various segments of root canal dentin. Materials and methods. In this in vitro study, 40 single-rooted human premolars were decoronated and underwent root canal treatment along with post space preparation. The samples were randomly divided into two groups: In group 1, Panavia F 2.0 cement was used at room temperature; in group 2, the same cement was warmed to 55‒60°C before mixing. After fiber posts were placed and cemented in the root canals, 3 dentin/post sections (coronal, middle and apical) with a thickness of 3 mm were prepared. A universal testing machine was used to measure push-out bond strength in MPa. Data was analyzed using two-factor ANOVA and a post hoc Tukey test at α=0.05. Results. The mean value of push-out bond strength was high at room temperature, and the differences in the means of push-out bond strength values between the resin cement temperatures and between different root segments in each temperature were significant (P |
| Databáze: | Directory of Open Access Journals |
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