Abstract :
Abstract In this study, the effect of the laser (532nm) on (40) samples equences comprise equally twenty male and twenty female ones were collected from (20 to 47 )years old individuals by using Laser (532nm), power 20mw and the time of exposure (5,15and 30 min), the sample was divided into four sample for irradiation and control . The results of this study show the average percentage of surviving lymphocytes being (32.12±6.178) different exposures of laser (5,15 and 30 min), lead to the changes in the portion of live lymphocytes. The proliferative moment of the cells show almost exact the same regularity as seen in the untreated cells before as well as after diode laser (532 nm, 20 mW). found decrease in DNA retention (OD) for the following three doses (5,15 and 30 min) which is a sign for DNA focal stability reduction compared to standard DNA (OD) obtained the figure of survival DNA as( 85.5%, 88.5%, and 87.1% )each round. However, these results may confirm that DNA of diode laser (532 nm, 20 mW) irradiation is damaged at the degree immediately after exposure irradiation.
Keyword :
Keywords: Impact, Laser, Lymphocytic Cell, Density, DNA