US Patent 9398938 Oscillating dental angle handpiece

An oscillating dental angle handpiece for dental tools is described. The handpiece has a hollow housing body, that defines a first longitudinal cavity suitable for coaxially containing inside the first longitudinal cavity a driving shaft, and a second transversal cavity, arranged at an end of the first cavity and having an axis incident with the axis of the first cavity, as well as a driven holder, in which a rotary movement of the driving shaft is transformed into oscillating movement of the driven holder. Additionally, the handpiece is entirely made from synthetic material.