Method and device for a non-traumatic expansion of the bone for receiving affixing means for dental prosthetics

A non-traumatic expansive device for the bone for dental prosthetic implants comprising:

• a piece showing a center portion of a cylindrical shape with a surface of milled lines and having an upper end and having a lower end;
• a first transition area attached to the upper end, wherein the first transition area has a frustro-conical shape tapering upwardly to narrow to an upper side;
• an upper part finished in a shape of a prismatic screw head and attached to the upper side of the frustro-conical shape;
• a threaded end having a shape of an elongated cone and attached to the lower end.

A method for expanding a bone for receiving a dental prosthetic implant, comprising the steps

• designing a build-up of the maxillary and mandible bone, respectively;
• drilling into a bone crest of the maxillary and mandible bone, respectively employing
• a one-piece expansion device (1) formed of
• an upper base (11) formed as a prismatic screw head,
• a center body (3) having milled generating lines extending in an axial direction,
• a first transition area (5) disposed between the center body (3) and the upper base (11), wherein the first transition area has a conical shape tapering toward the upper base (11),
• a threaded end (9) having a shape of an elongated cone, a second transition area (7) disposed between the center body (3) and the threaded end (9), wherein the second transition area (7) has a conical shape tapering toward the threaded end (9);
• screwing the expansion device up to a desired depth into the bone crest thereby expanding the bone;
• removing the expansion device from the bone crest and leaving an expanded hole;
• placing an implant into the expanded hole;
• suturing and closing of gum tissue surrounding the implant.