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Low‐power laser light in the healing of burns: A comparison between two different wavelengths (635 nm and 690 nm) and a placebo group
Author(s) -
Schlager A.,
Kronberger P.,
Petschke F.,
Ulmer H.
Publication year - 2000
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/1096-9101(2000)27:1<39::aid-lsm5>3.0.co;2-4
Subject(s) - wound healing , edema , medicine , laser , burn wound , laser light , surgery , placebo , irradiation , pathology , optics , physics , alternative medicine , nuclear physics
Background and Objective Studies on the influence of low‐power laser light on wound healing have shown inconsistent results, or, as in the case of burns, are very scarce. We have studied the effects of two different low‐power diode laser lights on the healing of burns in rats. Study Design/Materials and Methods Thirty rats were burned on both flanks and randomly allocated to one of three study groups. In group A, both wounds remained untreated; in groups B and C, one wound each was irradiated with 635 nm or 690 nm laser light (1.5 J/cm 2 ), whereas the other wound remained untreated. Diameter, redness, and edema of the wounds were examined daily. Results Between and within groups, diameter, redness, and edema of the wounds were similar throughout the entire observation period. Irradiation of the burns did not accelerate wound healing when compared with control wounds. Conclusion We conclude that neither 690 nm nor 635 nm low‐power laser light produced any beneficial effects on the healing processes of burns in rats. Lasers Surg. Med. 27:39–42, 2000. © 2000 Wiley‐Liss, Inc.