An experimental study of the healing effect of the HeNe laser and the infrared laser

Autor: V Terribile Wiel Marin, Luigi Corti, C. Velussi
Rok vydání: 1988
Předmět:
Zdroj: Lasers in Medical Science. 3:151-163
ISSN: 1435-604X
0268-8921
DOI: 10.1007/bf02593807
Popis: Changes in the macroscopic appearance and in the histological features of full-thickness, excised, circular wounds treated with either an infrared (IR) or a helium-neon (HeNe) laser were compared with those occurring in control wounds over a period of 15 days. The wounds were produced in the skin of the backs of anaesthetized adult female rats, and were initially 1 cm in diameter. The control and the two experimental laser-treated groups each consisted of ten wounds, one per rat. In the experimental groups either the IR laser was applied at 2.1 J/cm2, 904 nm, 3500 Hz, for four min each day, or the HeNe laser was applied at 3.6J/cm2, 632.8 nm, continuous, for eight min. The laser-treated wounds decreased in size and re-epithelialized more rapidly than did the controls. Qualitative histological examination indicated that periodic acid-Schiff-positive material decreased more rapidly in the laser-treated groups than in the controls. No significant differences in the effects of the two forms of laser treatment were found. The clinical significance of these observations is discussed.
Databáze: OpenAIRE
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