Effect of Low Level Laser Therapy on the Surgical Wound Healing in Hamster

Background and objectives: accelerating wound healing is a very important factor for patients toreturn to ordinary life. laser seems to have positive effect on cutaneous wound healing. this studyaimed to investigate the effect of red light laser 630 nm on cutaneous surgical wound in hamsterand to compare outcomes such as angiogenesis, number of fibroblasts and collagen formation inintervention and control group.materials and methods: this experimental study carried out with collaboration of qazvinuniversity of medical sciences with mehregan pet clinic in winter of 2009. thirty suri hamsterswere randomly allocated in two groups and four parallel wounds were made on their backs. theintervention group was radiated with red-light laser 630 nm. after 2,5,10 and 14 days, skin biopsywere obtained and number of blood vessels, fibroblast and collagen production were comparedwith the control group. data were analyzed using independent sample student t test using spssversion 10 and p value less than 0.05 was considered significant.result: evaluation of wounds in experimental and control groups showed significantly increasednumber of vessels and fibroblasts as well as collagen production in laser radiating group (p < 0.05).conclusion: laser therapy (630 nm) can accelerate wound healing in comparison with controlgroup.