Patent ID: 7008224

Claim:
A disposable dental instrument driven by compressed air comprising: an elongated body, said elongated body comprising: a first shell, a second mating shell, and a core, said first and second shells joined to form an exterior surface for manual manipulation, said shells forming a cavity, said cavity comprising a first set of integrally formed grooves within a cavity wall, said core comprising a second set of integrally formed grooves matching up with said first set of grooves, said first and second set of grooves being matched in shape and location to define various passageways as fluid conduits; a base, said base comprising: a plurality of conduits, said base communicating with an outside source of light, air, and water through said conduits, said conduits communicating with said passageways defined by said elongated body; a head located at the opposite end from said base, said head comprising: a supporting shaft, bearings rotatably supporting an upper and lower end of said supporting shaft, each bearing positioned within a bushing, said bushings positioned within said head, a turbine impeller, said turbine impeller connected to said supporting shaft, said turbine impeller being driven by said compressed source air through an air nozzle to rotate a dental bur, a dental bur mounting system, a dental bur removal system, said dental bur removal system having an access hole to allow an object to push out said dental bur from said supporting shaft, at least one of said plurality of conduits extending from said base to said bearings and configured to guide water from said outside source to said bearings; and various openings located proximate to said head, said various openings delivering light, air, and water in the general direction of said dental bur.