Patent ID: 7686614

Claim:
A dental handpiece comprising: a body having a first portion and a second portion, the first and second portions disposed at an ergonomic angle to each other; a drive gear extending from the second portion toward the first portion, the drive gear having a first axis of rotation, the drive gear rotatably driving a second gear having a second axis of rotation, the second gear fixedly connected to a third gear also having the second axis of rotation, the third gear rotatably driving a fourth gear, the fourth gear having a third axis of rotation, the fourth gear operatively connected to a bur disposed in the first portion, the bur having a fourth axis of rotation different from the third axis of rotation; and wherein the second axis of rotation and the third axis of rotation are not coplanar, wherein the first axis of rotation and the third axis of rotation are not coaxial, and wherein the drive gear and the at least one driven gear do not include a taper gear or a face gear.