30,000 advanced sonic strokes per minute the 30,000 advanced sonic strokes provide superior whitening while cleaning beneath the gum line and polishing the tooth enamel;Interchangeable brush heads with 45 degree angled bristles brush heads have soft, rounded nylon bristles to help guarantee that the ada recommended;2 minute automatic shut off 2-minute auto-timer helps ensure dental professional recommended brushing time

• Supersmile Series II LS45 Sonic Pulse Toothbrush

Supersmile Series II LS45 Sonic Pulse ToothbrushRobell Research, Inc