公开(公告)号：US20220409333A1

公开(公告)日：2022-12-29

申请号：US17358376

申请日：2021-06-25

申请人： A. J. ANTUNES & CO.

发明人： SHLOMO LAZAROVITCH

IPC分类号： A61C1/08 ,  A61C8/00

摘要： A new and improved drill bit for preparing a dental implant site within a jawbone for the implantation of a dental implant, as a result of being rotatably driven by a motor drive, comprises a body portion which includes an upper shank portion to be inserted into the motor drive, and a lower drilling portion for forming a hole or bore with a jawbone within which a dental implant is to be implanted. The lower drilling portion includes a pointed conical tip portion having an apex for determining the location of the implantation site, and the outer diametrical extent of the lower drilling portion progressively increases in diameter as considered in the direction from the apex to the upper shank portion so as to automatically enlarge the hole or bore formed within the jawbone such that the complete drilling process can be completed within a single drilling operation as opposed to conventional operations which require the use of a plurality of drill bits of increasingly larger diametrical extents.