Dentistry – Apparatus – Hand manipulatable implement
Patent
1999-01-28
2000-11-14
Wilson, John J.
Dentistry
Apparatus
Hand manipulatable implement
433165, 433173, A61C 300
Patent
active
061461385
ABSTRACT:
Non-traumatic expansion devices for the bone for receiving affixing means for dental prosthetics, each expansion device being formed by a one-piece component (1) having an upper base (11) formed as a prismatic screw head. A center body (3) has milled generating lines extending in axial direction. A first transition area (5) is disposed between the center body (3) and the upper base (11). A threaded end (9) has a shape of an elongated cone and a second transition area (7) has a conical shape tapering toward the threaded end (9). Each expansion device has a different thickness and length on the threaded end (9) depending on the type of required expansion. The expansion device has the function of a screw for the purposes of drilling the bone and keeping the bone mass whole.
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Kasper Horst M.
Wilson John J.
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