areas where the user commonly misses. Electric toothbrush models that currently utilise Bluetooth include the Oral-B Pro 6000, Pro 6500, Pro 7000 and Genius 9000, Oral-B iO as well as Phillips Sonicare Diamond Clean Smart. Cleaning modes Most sonic toothbrushes come with different cleaning modes and intensity levels. Cleaning modes are designed for special types of cleaning efficiency. Some of the most well known are Sensitive, Daily care, Whitening and Tongue cleaning. Certain toothbrushes that offer both ultrasonic and sonic motion allow for the intensity of the sonic motion to be reduced, or even for the sonic motion to be turned off entirely so that only ultrasound is emitted. Since ultrasound movements are very low in amplitude, this setting may be indicated for patients who may not be suitable candidates for typical sonic or power toothbrush vibration but need the additional cleaning power of an ultrasonic toothbrush, such as patients who have recently undergone periodontal surgery. References Dental equipment American inventions 20th-century inventions