Effect of Root Canal Sealers on Bond Strength of Fiber Posts to Root Dentin Cemented after one Week or six Months.

Autor: Ruiz L; Department of Dentistry, School of Dentistry, Universidade Estadual de Ponta Grossa. Ponta Grossa, Paraná, Brazil., Mongruel Gomes G; Department of Dentistry, School of Dentistry, Universidade Estadual de Ponta Grossa. Ponta Grossa, Paraná, Brazil., Bittencourt B; Department of Dentistry, School of Dentistry, Universidade Estadual de Ponta Grossa. Ponta Grossa, Paraná, Brazil., Rutz da Silva F; Department of Dentistry, School of Dentistry, Universidade Estadual de Ponta Grossa. Ponta Grossa, Paraná, Brazil., Mongruel Gomes OM; Department of Dentistry, School of Dentistry, Universidade Estadual de Ponta Grossa. Ponta Grossa, Paraná, Brazil., Chidoski Filho JC; Department of Dentistry, School of Dentistry, Universidade Estadual de Ponta Grossa. Ponta Grossa, Paraná, Brazil., Lincoln Calixto A; Department of Dentistry, School of Dentistry, Universidade Estadual de Ponta Grossa. Ponta Grossa, Paraná, Brazil.
Jazyk: angličtina
Zdroj: Iranian endodontic journal [Iran Endod J] 2018 Winter; Vol. 13 (1), pp. 54-60.
DOI: 10.22037/iej.v13i1.17998
Abstrakt: Eugenol-based root canal sealers (RCS) have been widely used by clinicians; however, their effect on resinous materials is still questionable. The objective of this study was to evaluate the influence of RCS at 1 week and 6 months' post obturation on the bond strength (BS) of glass fiber posts (GFP) to root dentin, using conventional and self-adhesive cementation systems (CS). The roots of 56 extracted human canines, were divided in eight groups ( n =7) according to the combination of the following factors: RCS (with or without eugenol-Endofill and Sealer 26, respectively), storage period post obturation and prior GFP cementation (1 week and 6 months) and cementation systems (Variolink II - conventional resin cement or RelyX U200-self-adhesive resin cement). After one week, the specimens were transversely sectioned into six 1-mm-thick disks and were subjected to the push out BS test. The data were subjected to 3-way ANOVA and Tukey's tests ( α =0.05). The BS were not affected by the RCS, neither the CS ( P >0.05). Just the period post obturation showed statistically significant differences ( P  0.05), where the GFP cemented 6 months after the endodontic treatment showed higher values than those cemented 1 week after it.
Competing Interests: ‘None declared’.
Databáze: MEDLINE
Externí odkaz: