Dental-prosthesis suction-joint - has non-return valve inside conical tooth crown

摘要

The suction joint secures a dental prosthesis (P) to a gum (Z), having a non return suction valve (V) in the prosthesis, and incorporating a tappet (3) with seal (7) guided in the housing (1). This is spring loaded against a valve seat (2) in the housing, and allows air trapped between prosthesis and gum to escape via an outlet (13) in the housing. The valve is housed inside a conical tooth crown (K), and has in its end towards the gum an insertion opening (2a) extending over most of the housing dia. for the tappet. The seal (7) on the latter works against the valve seat. The end faces towards the gum of tappet and housing are flush with each other, and form a contact gace with the gum. USE/ADVANTAGE - Suction joint for dental prosthesis can be dismantled for repair and maintenance and reassembled.