Ceramic bracket debonding with ytterbium fiber laser.

Lasers in Medical Science
Ayşe Sena Kabaş Sarp, Murat Gülsoy

Abstract

Since the early 1990 s, lasers have been used experimentally for debonding ceramic brackets. Lasers reduce the required debonding force and risk of enamel damage. However, the thermal effect during the laser radiation on dental tissues can cause undesirable results. The aim of this study is to develop a laser debonding technique for ceramic brackets that is better than mechanical debonding and also to minimize the side-effects of laser applications. A new fiber laser (1,070-nm ytterbium fiber laser) was tested, debonding procedure was quantified with a universal testing machine, and intrapulpal temperature was monitored for limiting the injury or pain. Experiments were performed in two sections according to the type of lasing mode: continuous wave (CW) and modulated mode. In continuous wave (CW) mode, a laser was applied on samples with different constant power levels continuously. In the second set of experiments, brackets were irradiated in modulated mode, in which the laser energy was delivered with on-and-off cycles. Laser power and duty cycles were adjusted by controlling the current, which was set to 4.99 A of current for 18 W of emission. Debonding force, debonding time, and work done by a universal testing machine were ...Continue Reading

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Citations

Dec 18, 2013·Photomedicine and Laser Surgery·Tugrul SariNorbert Gutknecht
Mar 26, 2013·Lasers in Medical Science·Ambili Roselina MundethuRene Franzen
Jun 23, 2016·Journal of Lasers in Medical Sciences·Rezvaneh GhazanfariMarzieh Alikhasi
Jul 15, 2015·Lasers in Surgery and Medicine·Onjen TakNorbert Gutknecht
Nov 21, 2014·Lasers in Medical Science·Rodrigo Teixeira MacriMírian Aiko Nakane Matsumoto
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Jul 2, 2016·Journal of Biomedical Optics·Irem DemirkanMurat Gülsoy
Sep 6, 2019·Lasers in Medical Science·Merve Karagoz-Yildirak, Rifat Gozneli
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Jun 13, 2015·The Journal of Contemporary Dental Practice·Soghra YassaeiZahra Ebrahimi Nik

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