Recently, Laser therapy continues to be an invaluable modality in veterinary clinics all over the world. The aim of the present work is to investigate the effects of photobiomodulation (PBM) on healing of soft tissues and to evaluate the advantages of some light sources with different wave lengths in promotion of healing process of soft tissue injuries. Circular skin excisions were inflicted on sixty rats; those were divided into equal four groups. Control group was left without any treatment and the other three groups were subjected to su Red laser 650nm, Infrared laser 906nm group and red led group treated by 4-5 J/Cm2 on daily basis for 7 sessions. A representing five rats of each group were euthanized at 3,7,15 days post-wounding. Results showed that Red laser was the best tool for soft tissue healing promotion followed by LED.
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