الفهرس 
Low level diode laser therapy on wound healing post gingivectomy
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Abstract
Objective: The purpose of this study was to evaluate the effect of low-level diode laser therapy on wound healing after gingivectomy. Methods: Forty patients (male and female) with ages ranged from 20-40 years, and who received gingivectomy participated in this study. They were selected randomly from dental outpatient clinic at Badr university in Cairo and randomly divided into two groups equal in number, one study group (A) and control one (B). The study group (A) was irradiated with Gallium Arsenide (GaAs) laser of wavelength 850 nm for 4 sessions on day 0, day 3, day 7 and day 14 post gingivectomy, while the control group (B) received placebo laser. Assessment of healing was done before starting the first session (day 0), day 7, day 14 (after session) and follow up assessment (day 21). The healing assessed by photographic method by applying image J software and Landry index. Results: The results of this study supported that the low-level diode laser therapy was significantly effective (p < 0.001) on wound healing in patients after gingivectomy. There was a highly significant difference between both groups after the treatment as the percent of healing by day 21 in study group was 96.11% while that of control group was 76.81%