*Corresponding Author: Dr. Vinay P MDS, Professor, Department of orthodontics and Dentofacial orthopaedics, Krishnadevaraya college of dental sciences, Bangalore. Ph. +91-9880722525, email: vinay10reddy@yahoo.co.in
To determine the shear bond strength of laser cured composite resin and compare with that of visible light cure resin and evaluate it's clinical usefulness.
An argon laser with a wavelength of 488-500nm and a power density of 2.104 mW/cm2 and an optical diameter of 6mm with a curing time of 10 seconds was employed as against the visible light cure with a wave length of 450–500 nm of the same optical diameter and curing time of 40 seconds and tested using a universal instron testing machine.
The bond strength between laser cured and visible light composite resin was not statistically significant. However the lesser curing time of laser reduces the chair side time.
Laser curing of orthodontic brackets may not be a viable procedure due to the cost factor as the bond strength is clinically insignificant.
Laser cure, visiblbe light, ceramic brackets, composite resin
