Ivana Parčina1, Ivana Miletić2, Andrei C Ionescu3, Eugenio Brambilla3, Dragana Gabrić4, Anja Baraba2. 1. - Department of Dental Medicine, Health Center for County of Dalmatia, Split, Croatia. 2. - Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Zagreb, Croatia. 3. - Department of Biomedical, Surgical and Dental Sciences, Galeazzi Institute, University of Milan, Milan, Italy. 4. - Department of Oral Surgery, 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.
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.
Entities:
Keywords:
Fiberglass Reinforced Polymers; Post and Core Technique; Root Canal Preparation; Solid-State Lasers
Authors: Cecilia Goracci; Andrea Urbano Tavares; Andrea Fabianelli; Francesca Monticelli; Ornella Raffaelli; Paulo Capel Cardoso; Franklin Tay; Marco Ferrari Journal: Eur J Oral Sci Date: 2004-08 Impact factor: 2.612
Authors: Olimpia Crispim da Silveira; Rodivan Bras da Silva; Fabio Roberto Dametto; Claudia Tavares Machado; Alex Jose Souza Dos Santos; Alessandro Leite Cavalcanti Journal: Acta Stomatol Croat Date: 2014-03
Authors: Mohammed Al Shahrani; Enrico DiVito; Christopher V Hughes; Dan Nathanson; George T-J Huang Journal: Photomed Laser Surg Date: 2014-04-09 Impact factor: 2.796