Dental handpiece

A dental handpiece, including:

• a handle extending along an axis and presenting a first end adapted to be connected to a dental unit and a second free end axially opposite to the first end, and
• a housing rigidly connected to the second free end of the handle,
• wherein the housing comprises:
• an optical emission source represented by at least one first light-emitting diode connected to an electric power supply, and
• a first optical sensor adapted to be connected to visualization devices, and
• wherein
• the optical emission source further comprises a second light-emitting diode different from the first light-emitting diode,
• the second light-emitting diode is connected to the electric power supply,
• the housing further comprises:
• a second optical sensor different from the first optical sensor, the second optical sensor being adapted to be connected to the visualization devices,
• a first transparent shielding window adapted to protect the first optical sensor, and
• a second transparent shielding window different from the first transparent shielding window adapted to protect the second optical sensor,
• the dental handpiece further comprises a means for supplying compressed air on the first shielding window and on the second transparent shielding window,
• the housing additionally comprises:
• a first aperture adapted for supplying compressed air to the first transparent shielding window, the first aperture being connected to the means for supplying compressed air,
• a second aperture different from the first aperture, the second aperture being adapted for supplying compressed air to the second transparent shielding window, the second aperture being connected to the means for supplying compressed air,
• a first diffuser is located in the first aperture,
• the first diffuser is adapted to generate an air jet forming an air curtain in front of the first transparent shielding window,
• a second diffuser different from the first diffuser is located in the second aperture, and
• the second diffuser is adapted to generate an air jet forming an air curtain in front of the second transparent shielding window.