Title:
APPARATUS FOR INTRAORAL DISTRACTION OSTEOTOMY TO WIDEN THE UPPER JAW
Document Type and Number:
WIPO Patent Application WO2001050976
Kind Code:
A3
Abstract:
The technique of surgically assisted rapid palatal expansion comprises force application indirectly to the jaw by means of an expansion device fixed to the teeth by means of acrylic pads, or orthodontic bands on the premolar or molar teeth. The problems, being movements of teeth and relapse at the bone level during and after the expansion, necessitating over-expansion; the low level of force application leading to tipping of the teeth and the jaw-segments; and the postponement of further orthodontic treatment till after removal of the expansion device; and the limited expandability of the device, necessitating the fabrication of a new device in case of very narrow jaws, have been solved with the invention. The forces apply via metal bone-plates (1, 2) directly at a higher level. Interchangeable modules (composition of 3, 4, 5) of different sizes allow to continue expansion once one module has reached the limit of its expansion.
Inventors:
MOMMAERTS MAURICE YVES (BE)
Application Number:
PCT/EP2001/000398
Publication Date:
December 27, 2001
Filing Date:
January 11, 2001
Export Citation:
Assignee:
MOMMAERTS MAURICE YVES (BE)
International Classes:
A61B17/66; A61C7/10; A61C8/00; (IPC1-7): A61B17/66; A61C7/10
Foreign References:
| US5885290A | 1999-03-23 | |||
| AT192049B | 1957-09-25 | |||
| DE1049533B |
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