Evaluation of Various Pretreatments to Fiber Post on the Push-out Bond Strength of Root Canal Dentin

Journal of Endodontics
Ömer KırmalıAlper Kuştarcı

Abstract

The aim of this in vitro study was to compare the effect of different pretreatments (fiber post) with the laser-activated irrigation (LAI) technique (for removal of the smear layer) on root canal dentin in terms of push-out bond strength (PBS) in a fiber post. Fifty freshly extracted mandibular single-rooted premolars were prepared, and LAI was applied to all roots (17% EDTA was 5 mL for 120 seconds with an erbium, chromium:yttrium-scandium-gallium-garnet laser [0.50 W, 20 Hz, 25 mJ]). In addition, 50 quartz fiber posts were randomly assigned to 5 groups (n = 10) according to the surface treatments as follows: group S (sandblasting), group N1 and group N2 (neodymium:yttrium-aluminum-garnet laser irradiation [2 W, 200 mJ, 10 Hz, with pulse durations of 180 or 320 microseconds), group HF (9.7% hydrofluoric acid etched), and group C (control with no treatment). Dual-cure resin cement was adhered onto the fiber posts after they were covered with a silane agent, and then the posts were placed into the canal space using a Lentulo spiral. The PBS test was performed after all specimens were transversally sectioned (root slices of 1-mm thickness). Data were analyzed with 1-way analysis of variance/Tukey post hoc test (α = 0.05). The hig...Continue Reading

Citations

Aug 13, 2020·Microscopy Research and Technique·Esma Saricam, Merve Arslan
Oct 2, 2020·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Ömer KırmalıAyşe Dündar
Jun 3, 2020·Restorative Dentistry & Endodontics·Fernando Peña BengoaCarlos Eduardo Da Silveira Bueno
Aug 8, 2019·Photobiomodulation, Photomedicine, and Laser Surgery·Ozlem UstunOmer Kirmali
Dec 5, 2020·Photobiomodulation, Photomedicine, and Laser Surgery·Amin DavoudiBehnaz Ebadian

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