Air driven dental handpiece

In a dental handpiece comprising a hollow handle and a rotatable chuck mounted in said handle, the improvement comprising a fiber optic lighting system within said handle, said fiber optic lighting system comprising a plurality of light transmitting fibers, said light transmitting fibers being provided with an opaque sheathing comprising an elastomeric material, said system having a terminus adjacent said rotary chuck, said terminus projecting from said handle and being adapted to direct light passing through said fiber optic lighting system to the area around a dental bur which is secured in said rotary chuck.

In a dental handpiece comprising a hollow handle and a rotatable chuck mounted in said handle, the improvement comprising a fiber optic lighting system within said handle, said fiber optic lighting system comprising a plurality of light transmitting fibers, said system having a terminus adjacent said rotary chuck, said terminus projecting from said handle and being adapted to direct light passing through said fiber optic lighting system to the area around a dental bur which is secured in said rotary chuck, said fiber optic lighting system further including a second terminus, said second terminus being positioned at the rear end of said handle, said handpiece further including connecting means secured at said rear end of said handle, said connecting means being adapted to secure a second plurality of light transmitting fibers to said handle, said second plurality of light transmitting fibers being held in an abutting, light transmitting relationship with said second terminus of said first plurality of light transmitting fibers by said connecting means, and said second terminus of said system comprising a plurality of light transmitting fibers which is resiliently held at the rear end of said handpiece, whereby the abutment of said second plurality of light transmitting fibers with said first plurality of light transmitting fibers is resiliently maintained.