Laser Treatment of Hypersensitive Dentin: Comparative ESEM Investigations

Results: Only the combination of the stannous fluoride gel with CO2 laser irradiation revealed complete closure of the dentinal tubules. Other fluorides combined with the CO2 laser or any combination with the diode laser showed only partly occluded tubules. Fluoridation and KTP laser irradiation attained occlusion of most tubules. No closure of the dentinal tubules was observed in teeth which were treated with fluorides only.