Penetration depth study of 830 nm low-intensity laser therapy on living dog tissue

Abstract

Our study indicates that 830 nm LILT (with laser parameter setting at 200 mW, fluence of 4 J/cm² for both contact and non-contact techniques, and tissue-laser probe distance up to 5 cm) was appropriate for treatments within 14 mm of depth. However, the use of 830 nm LILT for an application in which the target tissue is deeper than 14 mm may limit its positive effect.