An electric toothbrush comprises a body portion and a head including a motor,
a moving portion, a handle, and a gear arrangement between the moving portion and
the motor. The moving portion rotates, oscillates and/or reciprocates about an
axis normal to a longitudinal axis of the head. The moving portion can include
stiff bristles and massaging tips and the static portion can include soft bristles
and massaging tips. The body portion houses the motor. A switch is operatively
connected to the motor to provide momentary or continuous operation of the toothbrush.
In one embodiment the gear arrangement includes a shaft, a worm gear and a pair
of step gears. In another embodiment the gear arrangement includes a plurality
of gears and at least one swivel arm for drive the moving portion in a rotating,
oscillating or reciprocating manner.