A workbench for dental prostheses is disclosed comprising: a working table (2) leaning on a support frame (3); a couple of arm resting appendages (2a, 2b) projecting from the table (2) to an operator; a drawer (5) slidably inserted into the frame (3) and provided with arm resting outlines (5a, 5b); a suction unit (6) to collect the working residues of the prosthesis, arranged between the arm resting appendages (2a, 2b) and comprising a shaped bracket (7) protruding to the operator and provided with a through opening (9) communicating with a suction tube (8). The shaped bracket (7) is coupled to the suction tube (8) through connecting means (10) allowing to rotate the shaped bracket (7) along a generally vertical axis (Y).
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