Patent ID: 7040894
Filing Date: 2006-05-09
Classification: A61C,A63H

Abstract:
1. Rubber dam for the isolation of a tooth or several teeth in a patient's mouth comprising an frame for resting against the perioral facial area, an elastic film-like covering means which can be connected to the frame and in an untensioned state has a bag-shaped section for insertion into the oral cavity, and a fastening means for the intraoral fastening of the covering means, wherein the fastening means is formed by an elastic and annular element which is adapted in order to be inserted in an elastically deformed state into the vestibule and to exert a force on the covering means which pushes the covering means into the vestibule and firmly retains it therein, so that, when the rubber dam is inserted, the covering means extends in a slightly tensioned state between the frame and the fastening means located in the vestibule around the lips and the corners of the mouth and intraorally in the upper jaw and in the lower jaw in a slightly tensioned state out of the vestibule, over the external surfaces and chewing surfaces of the teeth and in the palate and tongue area in the plane of the chewing surfaces, and the lips, cheeks and corners of the mouth are pushed away from the teeth and a force directed upward is exerted on the upper jaw and a force directed downward is exerted on the lower jaw.