Clinical tests show the Collis Curve Toothbrush to be more effective in massaging gums and removing plaque than conventional straight bristle brushes. The bristles are curved much like that of a dental instrument. The brush is designed to straddle the teeth so that the softer curved outer bristles protect and clean the gums, while the short and stiff center bristles clean the tops of the teeth. This brush does a thorough job, requiring less fine motor skills than traditional brushes, making it ideal for the disabled. The Collis Curve Toothbrush easily reaches complex angles, an excellent choice for those with Braces, Bridges and Crowns. Makes brushing fast and fun for children.