Abstract
The application of electrolyzed acid water has been increasing for sterilization in clinical dentistry because of its excellent bactericidal activity. In the present study, the applicability of the electrolyzed neutral water, which was recently developed, to sterilization of dental bur was examined as compared with those of the electrolyzed strong and weak acid water. And corrosion tests were also carried out. When the ultrasonic cleaning action was added in the electrolyzed water, all the bur (steel and carbide burs) were sufficiently sterilized by only one-minute treatment. The electrolyzed neutral water was less corrosive than the strong and weak acid waters although the corrosion was found on the overall surface of the steel burs and a localized loss occurred at the blazed area between the blade and shank of the carbide burs.