HANDSCHLEIFWERKZEUG, INSBESONDERE ALS DENTALINSTRUMENT BEI DER HERSTELLUNG VON ZAHNKRONEN

摘要

A handheld dental tool for crown preparation, comprises a handle, a grinding burr, and a guard attached to the handle. The guard has a tip solid spherical closely spaced from the tip of the grinding burr such as to be receivable between the tooth to be prepared and the free gingival tissue thereat to protect the gingival tissue during the grinding of the tooth.