“CO LASER ETCHING” -AN EFFICIENT ALTERNATIVE TO 2 CONVENTIONAL ACID ETCHING TECHNIQUE?

Dr Shobhit singh tomar, Dr Garima Singh

Abstract


Aim: to evaluate and compare the shear bond strength of the brackets bonded after CO2 laser etching, conventional acid etching technique and after combination of CO2 laser etching followed by conventional acid etching technique.

   The combination of laser etching in different modes followed by chemical etching resulted in comparatively similar bond strength as samples of acid etching group therefore it can be used where maximum bond strength is required.

Continuous mode of carbon dioxide laser gives better results in terms of shear bond strength than ultra pulse laser etching. The combination of laser etching in different modes followed by chemical etching resulted in comparatively similar bond strength as samples of acid etching group


Keywords


Co2 Laser,Shear bond strength,Pulsed Laser,.acid etching

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