System for the removal of a defect in a tooth (71), consisting of an oscillatingly movable tool (3) having working surfaces (56) for an abrasive making of a cavity (K) in the tooth, a filling material for filing the cavity (K), an insert (91, 91A) which can be placed into the cavity (K), which with regard...http://www.google.ca/patents/US6022217?utm_source=gb-gplus-sharePatent US6022217 - System for removing a defect in a tooth and insert or tool for such a system