Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1999-09-27
2000-12-05
Lucchesi, Nicholas D.
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433 7, A61C 800, A61C 300
Patent
active
06155829&
ABSTRACT:
The invention consists of an anchoring device to be applied in the palatal arch to anchor the wires suitable for orthodontic treatment. Said anchoring device consists of: the first screw (1) with a threaded shank (11; 12) topped by a substantially cylindrical collar (13), with non cylindrical head (14) of reduced width as compared to the diameter of said collar; said first screw has a threaded hole (15) coaxial to the axis of said first screw; a substantially cylindrical distance sleeve with two central hollows (62; 63), the first hollow (62) non cylindrical and with a profile suitable to mate with said collar (14) of said first screw. The second hollow (63) has a substantially cylindrical profile suitable to the passage of the shank (71) of a second screw (7). The second screw (7) has a head (73) topping said cylindrical shank and a threaded end part (72), where said head has a threaded hole (74) suitable for receiving said locking screw (10) of the cap (8).
REFERENCES:
patent: 5066224 (1991-11-01), Bloch et al.
patent: 5769630 (1998-06-01), Hoffman
patent: 5820369 (1998-10-01), Kvarnstrom et al.
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