Disposable right angle dental handpiece

DETAILED DESCRIPTION According to the present invention, a disposable right angle handpiece comprises an outer housing made of disposable plastic material and having an elongated opening therein for receiving a drive shaft means; a cavity in said housing for receiving a driven gear member; means coupling a working member to said driven gear member for performing a working operation in an oral cavity of a patient; a drive shaft means, preferably made of metal, in said elongated opening of said outer housing and having means at one end thereof for engaging with a dental drive means of a dental tool, and being rotatable within said housing, and having a gear at the distal end thereof which engages with said driven gear; and means for coupling said drive shaft means to said housing for securing said drive shaft means in said housing in engagement with said driven gear during use, and for permitting disengagement of said drive shaft means from said housing for disposal of said housing.