The GUM Technique toothbrush features a unique handle designed to help position the brush so that the bristles reach under the gum line and where dental plaque can build up and cause gingival inflammation leading to gum diseases. The Quad-Grip handle has a unique design that helps you always hold the brush the way most dental professionals do–at 45 degrees. Whether you are left- or right-handed, brushing upper or lower teeth, the handle intuitively helps you form the 45-degree angle that is more effective at cleaning away the dental plaque from both gums and teeth. This makes sure you have the right dental 'technique.'