dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Universidade de São Paulo (USP) | |
dc.contributor | Rio Grande do Sul Federal University (UFRGS) | |
dc.contributor | University of Southern Santa Catarina (UNISUL) | |
dc.date.accessioned | 2019-10-06T16:33:47Z | |
dc.date.accessioned | 2022-12-19T18:52:13Z | |
dc.date.available | 2019-10-06T16:33:47Z | |
dc.date.available | 2022-12-19T18:52:13Z | |
dc.date.created | 2019-10-06T16:33:47Z | |
dc.date.issued | 2019-07-01 | |
dc.identifier | Journal of Prosthetic Dentistry, v. 122, n. 1, p. 46.e1-46.e7, 2019. | |
dc.identifier | 0022-3913 | |
dc.identifier | http://hdl.handle.net/11449/189218 | |
dc.identifier | 10.1016/j.prosdent.2019.03.020 | |
dc.identifier | 2-s2.0-85066866122 | |
dc.identifier | 1627568419811788 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5370256 | |
dc.description.abstract | Statement of problem: The post space must be irrigated with solutions that do not interfere with the bond strength and enhance penetration into the dentinal tubules of self-etching resin cement. Which solution is best is unclear. Peracetic acid with different formulations appears to be a good option. Purpose: The purpose of this in vitro study was to evaluate the effect of irrigating the fiber post space by using 1% peracetic acid (PA) at low (LH) or high (HH) hydrogen peroxide concentration on the bond strength and penetration into the dentinal tubules of RelyX U200 self-etching resin cement. Material and methods: After intraroot preparation for fiber posts in 60 endodontically treated teeth, the specimens were divided into 4 groups (n=15) according to the irrigation protocol: CG (control), distilled water; NA (NaOCl), 2.5% sodium hypochlorite; LHPA, PA with a low concentration of hydrogen peroxide; and HHPA, PA with a high concentration of hydrogen peroxide. The fiber posts were then cemented with self-etching resin cement labeled with rhodamine. Cross sections of the thirds were obtained by confocal scanning microscopy and submitted to the push-out and cement penetration tests. The data obtained in the push-out tests were evaluated by using ANOVA and the Tukey post hoc test, and those data obtained in the confocal screening were evaluated by using the Kruskal-Wallis and Dunn (Bonferroni correction) tests (α=.05). Results: Bond strength values in the cervical third of the CG were higher than those in NA (P=.035) but similar to those of the other groups (P=.05). In the other thirds, CG and LHPA values were similar to one another (P=.05) but higher than those of NA and HHPA (P<.001). The penetration rate assessed by confocal scanning microscopy revealed similar results in the cervical third for all groups (P=.075), except for NA which provided the lowest penetration. In the remaining thirds, CG and LHPA provided the highest penetration rate (P=.015). Conclusions: The LHPA group had no negative effects on the bond strength and penetration into the dentinal tubules of the self-etching resin cement. | |
dc.language | eng | |
dc.relation | Journal of Prosthetic Dentistry | |
dc.rights | Acesso aberto | |
dc.source | Scopus | |
dc.title | Effect of fiber post space irrigation with different peracetic acid formulations on the bond strength and penetration into the dentinal tubules of self-etching resin cement | |
dc.type | Artículos de revistas | |