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VOLUME 1 , ISSUE 1 ( 2011 ) > List of Articles


Comparison of Diode Lasers in Soft Tissue Surgery using CW and Superpulsed Mode: An in vivo Study

Ralf Borchers

Citation Information : Borchers R. Comparison of Diode Lasers in Soft Tissue Surgery using CW and Superpulsed Mode: An in vivo Study. Int J Laser Dent 2011; 1 (1):17-27.

DOI: 10.5005/jp-journals-10022-1003

License: CC BY-NC 4.0

Published Online: 01-12-2017

Copyright Statement:  Copyright © 2011; The Author(s).


Dental soft tissue surgery by diode lasers in CW mode often causes carbonization of the tissues with following necrosis and a delay of wound healing. In vitro studies have already shown that superpulsed diode laser surgery has much less disadvantages for the tissues in histological approach. Purpose of this study was to investigate in vivo, if superpulsed mode of operation can realize an improvement for surgeon and patient in soft tissue surgery. A total of 26 patients were treated by diode lasers in different modes of operation for soft tissue surgery. Around 12 patients were treated by superpulsed Elexxion Claros diode laser: 810 nm; 10-50 W Ppeak; 10-20 ìs pulse duration; 12000-20000 Hz; 400 ìm fiber. 14 patients were treated by Vision MDL-10 diode laser: 980 nm; 2.5 W; CW mode and also 400 ìm fiber. Clinical treatment was documented by photos and questionnaires for patients and surgeons. Questions concerned: Carbonization, coagulation, cutting speed, pain, swelling, bleeding, need for drugs, functional reduction and fibrine layer on wounds—during treatment, directly after treatment, after 1 day, after 3 days and after 1 week. The clinical observations and the questionnaires showed in most cases signicant differences between CW mode and superpulsed diode laser treatment in surgery. It could be shown that superpulsed diode laser surgery is superior to continuous wave done treatment. Carbonization and thermal damage of the tissues can be reduced to a minimum, therefore healing is faster as in CW mode surgery. Generation of a soft tissue cut is faster and more precise. Patients have less pain in amount and time period. The need of drugs is reduced. There are less functional restrictions and there is less swelling. The advantages of superpulsed mode of operation for soft tissue diode laser surgery are evident. Continuous wave mode should no longer be implemented in diode laser surgery.

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