An instrument for removing by suction saliva, water or other materials generated or used in connection with procedures carried out in the region of the mouth. The instrument includes a substantially tubular, elastic frame arranged for suction, a finger part for attaching the instrument to a finger, and a tip part located, in an axial direction, farther out than the finger part and including a suction inlet. The tip part is arranged to be rotatable around the axial direction of the frame.