Device for brushing the teeth, having multiple brushes with rotary and/or oscillating motion

two lateral brushes (102, 103) and an upper brush (101), each respectively having a respective supporting rod, which is inserted inside a directive channel (105, 110, and 106, 109) and is connected toa gear (111, 112, and 113); transmission means of a rotary motion, generated by one or more engines, towards said gears (111, 112, and 113); a motion conversion mechanism from a rotary motion around a longitudinal axis to a simultaneous rotary motion and vertical oscillating motion perpendicular to the same longitudinal axis and parallel to the larger axis of teeth, wherein: the lateral supporting rods include a respective rear part connected to a respective gear (139) in a off-center position in respect to the rotary axis (140); the gear (139) transmits a conical motion which is convertedinto a vertical oscillating motion to the lateral brushes (102, 103). 本发明所述装置包括两个侧部牙刷(102,103)及上部牙刷(101),每个牙刷均具有各自的支撑杆，所述支撑杆塞入定向通道(105,110,及106,109)并与传动装置(111,112及113)相连接；由个或多个马达驱动的与传动装置(111,112及113)连接的旋转运动的传动机构；个将沿纵轴的旋转运动转换为沿相同