The uniquely angled head of the ultrasonic toothbrush series helps clean hard to reach places. Effectively cleaning the back teeth can be difficult with a conventional, straight brush. At 11º, the angled head improves access to the back teeth and the ultrasonic vibration effectively removes hidden plaque. Unlike most electric toothbrushes the design also features a slim, stylish handle for better control and maneuverability. The design appeals to the importance of caring for the back teeth and results in an ultrasonic toothbrush that removes plaque effectively and elegantly.