Histopathological effect of two different wavelengths of visible laser

	Histopathological effect of two different wavelengths of visible laser
Journal of Basrah Researches (Sciences)
Article 1, Volume 37, Issue 3, 2011, Pages 63-71 PDF (0 K)
Abstract
Laser light has special characteristics features compared to conventional light sources made it the prime source in different scientific disciplines . The present study confirmed that low level laser therapy (LLLT) can accelerate the wound healing process of skin by using two visible ( red 632.8 nm and green 532 nm ) light . The study included (90) mice regardless of sex divided into control (10 mice ) and study groups (80 mice). Injury to skin was done for both groups . The control group was left for healing without any interventions at usual conditions . The study ( treated ) group consisted of 80 mice divided into two groups (40 mice ) each . The first group subdivided to four small groups (10) mice each and were exposed to the wavelength 632.8 nm at two different energy densities . The second group was subdivided too by the same manner and exposed to the wavelength 532 nm at two different energy densities . Skin biopsy from the wounds was taken from all mice for histopathological study at ( 1,3,5,7) days of injury . The study revealed that laser acceleated inflammatory proliferative phases. The best results for healing wound at laser 632.8 nm at energy density of 0.708 J/cm2 while for the laser 532 nm was of 0.271 J/cm2 .

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