Scaling with Rotosonic Scaler was investigated extraorally and intraorally to examine its safety and efficiency, and it was compared with ordinally hand scalers.
Time consumption of Rotosonic Scaling was less than 2/3 of ordinally hand scaling, and hand pressure required to Rotosonic Scaler was approximately 1/10 of hand scaler. However, root surface was not smoother in Rotosonic Scaling than that of hand scaling. About Rotosonic Scaling, to remove calculus on labial and lingual surface was much easier than that of approximal surface. Histopathologically, severe damage of the gingival tissue was not observed.
According to our present investigation, Rotosonic Scaler is indicated to use both general and deep scaling. To get more sufficient results, it is recommended to use ordinally hand scaler after using Rotosonic Scaler.