An improved dental tool coupling apparatus for coupling disposable tool heads to drive housings. A tubular nose of the housing receives a tool head shaft, which extends within a tubular output shaft coupled to a drive means. The output shaft includes a plurality of radially disposed sockets containing...http://www.google.fr/patents/US5498159?utm_source=gb-gplus-shareBrevet US5498159 - Dental tool coupling for disposable tooth polisher
Dental tool coupling for disposable tooth polisher
