Orthodontic bracket
AssigneeTomy Company, Ltd.
InventorsMasaaki Orikasa, Shingo Katayose, Kosei Endo
Life of this patent
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Abstract
A bracket body 3 is fixed to a base part 2, and a clip 4 is mounted on the bracket body 3 so as to move. An archwire slot 5 is provided on an upper face of the bracket body 3. A guide groove 9 for guiding a lower extended part 42 of the clip 4 is formed on a lower face of the bracket body 3, and provided at a position below the archwire slot 5. In a state where the slot is closed, an end 45 of the lower extended part 42 does not pass through the bracket body 3 up to a side face at an opposite side to a curved part of the bracket body 3. It is possible to provide an orthodontic bracket which has a lower height and has less possibility that a clip may be detached.
Claims8
An orthodontic bracket comprising:
- a base part in a plate-like shape which is directly or indirectly fixed to a tooth at its bottom face;
- a bracket body which is fixed to an upper face of the base part;
- and
- a clip having a substantially U-shape in section which is mounted on the bracket body so as to move, and includes an upper extended part extending along an upper face of the bracket body, a lower extended part extending along a lower face of the bracket body, and a curved part interconnecting the upper and lower extended parts,
- wherein an archwire slot in a shape of a groove capable of containing an archwire is provided on the upper face of the bracket body so as to extend in a direction perpendicular to a moving direction of the clip,
- an engaging part into which an end of the upper extended part of the clip can be inserted is provided on a side face at an opposite side to the curved part of the archwire slot,
- a guide groove for guiding the lower extended part in the moving direction of the clip is provided on the lower face of the bracket body, the guide groove being provided below the archwire slot, and
- in a state where the end of the upper extended part of the clip is inserted into the engaging part, an end of the lower extended part of the clip does not pass through the bracket body up to an end face at the opposite side to the curved part of the bracket body.
Dependencies are inferred from the claim text.