FLUTED OSTEOTOME AND SURGICAL METHOD FOR USE

摘要

A surgical method and tool for expanding an initial osteotomy (42) to receive a dental implant (44). An osteotome (22) having a tapered working end (28) is inserted into the initial osteotomy (42). The initial osteotomy (42) is enlarged by simultaneously rotating and pushing the working end (28) of the tapered osteotome (22) into the osteotomy (42). One or more burnishing edges (40) concentrate the pushing and rotational force in outward normal and tangential component forces against the interior surface of the osteotomy (42) to incrementally expand the osteotomy (42) with little to no removal of bone material (46). The inserting and enlarging steps are repeated, as needed, with progressively larger tapered osteotomes (22) until an osteotomy (42) of predetermined size is achieved. Finally, a fixture portion of a dental implant (44) is installed into the expanded osteotomy (42).

主权项

1. A method for expanding the diameter of a osteotomy prior to receiving a dental implant, said method comprising the steps of:
providing a bone expander tool having a tapered working end, the tapered working end surrounded by a plurality of blades, the blades being configured to cut bone when the tool is rotated in a cutting direction and to outwardly displace bone without cutting when the tool is rotated in an opposite non-cutting direction, coupling the bone expander tool to a rotary surgical engine, continuously rotating the tapered working end of the bone expander tool with the surgical engine in the non-cutting direction, vertically pushing the tapered working end with gentle vertical force into a preexisting osteotomy having interior surfaces composed essentially of bone material, said vertically pushing step occurring concurrently with said rotating step but without linking the amount of vertical force to the rotation rate of said continuously rotating step, said vertically pushing step including manually pressing the blades against the interior surfaces of the osteotomy; and irrigating the tapered working end with a cooling saline or water spray concurrently with said continuously rotating and vertically pushing steps so that the blades are irrigated as they press against the interior surfaces of the osteotomy to outwardly displace the bone material in a controlled manner.