Original scientific paper
https://doi.org/10.15644/asc50/4/5
Influence of Laser Activated Irrigation with Erbium Lasers on Bond Strength of Inidividually Formed Fiber Reinforced Composite Posts to Root Canal Dentin
Ivana PARČINA AMIŽIĆ
; Department of Dental Medicine, Health Center for County of Dalmatia, Split, Croatia
Ivana Miletić
; Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Zagreb, Croatia
Andrei C Ionescu
; Department of Biomedical, Surgical and Dental Sciences, Galeazzi Institute, University of Milan, Milan, Italy
Eugenio Brambilla
; Department of Biomedical, Surgical and Dental Sciences, Galeazzi Institute, University of Milan, Milan, Italy
Dragana Gabrić
; Department of Oral Surgery, School of Dental Medicine, University of Zagreb, Zagreb, Croatia
Anja Baraba
; Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Zagreb, Croatia
Abstract
Objective: The aim of this in vitro study was to investigate the effect of laser activated irrigation (LAI) using two erbium lasers on bond strength of individually formed fiber-reinforced composite (FRC) posts to root canal dentin. Materials and methods: Twenty-seven single-rooted human teeth were endodontically treated and after post space preparation divided into three groups (n=9 per group), according to the pre-treatment of post space preparation: 1) Conventional syringe irrigation (CSI) and saline; 2) Er.YAG photon-induced photoacoustic streaming (PIPS) technique and saline; 3) Er,Cr:YSGG activated irrigation with RFT2 tip. Two specimens from each group were used for SEM analysis. The remaining specimens (n=7 per group) received individually formed FRC post, everStick POST, luted with self-adhesive cement, G-CEM LinkAce. After cementation, the roots were perpendicularly sectioned into 1 mm thin sections and a push-out test was carried out (0.5 mm/min). The data were calculated as megapascals and were log transformed and statistically analysed using one-way ANOVA at the level of significance set at 5%. Results: In the control group, the smear layer was still present. In the Er:YAG group, the smear layer was removed. In the Er,Cr:YSGG group, the smear layer was partially removed. The Er,Cr:YSGG group achieved the highest bond strength values, followed by the control group and then the Er:YAG group, but no statistically significant difference was found in bond strength values in the tested group of post space pretreatment (p=0.564). Conclusions: LAI using two erbium lasers, with PIPS or RFT2 tip, did not affect the bond strength of individually formed FRC posts to root canal dentin.
Keywords
Post and Core Technique; Solid-State Lasers; Root Canal Preparation; Fiberglass Reinforced Polymers
Hrčak ID:
170922
URI
Publication date:
15.12.2016.
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