Reconditioning of ceramic orthodontic brackets with an Er,Cr:YSGG laser.

Lasers in Medical Science
Farzaneh AhrariMahshid Ramtin

Abstract

It is now known that erbium lasers are effective in composite removal, but there is minimal information about their efficacy on recycling of ceramic brackets. This study, therefore, aimed to determine the percentage of remaining adhesive on the base and the shear bond strength of debonded ceramic brackets after being reconditioned by an Er,Cr:YSGG (erbium, chromium: yttrium-scandium-gallium-garnet) laser. Thirty premolars were divided into three groups, then bonded with mechanical retention ceramic brackets according to the bracket base conditions: (1) new brackets; (2) debonded brackets cleaned of adhesive with the Er,Cr:YSGG laser at 3.5 W; and (3) debonded brackets cleaned of adhesive with the Er,Cr:YSGG laser at 4 W. Before bonding, the percentage of remaining adhesive on the bases of reconditioned brackets was calculated by using stereomicroscopic images through an image processing software. The brackets were then tested in shear mode in a universal testing machine and the adhesive remnant index scores were determined. The percentage of remaining adhesive on the bases of brackets that were cleaned by the Er,Cr:YSGG laser at 4 W (3.1 %) was significantly lower than that of the 3.5-W laser group (5.9 %) (p = 0.03). No signif...Continue Reading

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Citations

May 21, 2014·The Journal of Advanced Prosthodontics·Simge TaşarGökçe Merıç
Jun 23, 2016·Journal of Lasers in Medical Sciences·Horieh MoosaviFarzaneh Ahrari
Apr 11, 2014·Photomedicine and Laser Surgery·Carmen M Zamudio-OrtegaMaría M García-Fabila
Jul 22, 2018·Journal of Lasers in Medical Sciences·Farzaneh AhrariMehrnoosh Alirezaei
Aug 8, 2020·Photobiomodulation, Photomedicine, and Laser Surgery·Hernan Giraldo-CifuentesJosep Arnabat-Dominguez
Sep 16, 2017·Journal of Lasers in Medical Sciences·Soghra YassaeiHamidreza Meshkani

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