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1. WO2009009250 - NARROW CERAMIC SELF-LIGATING ORTHODONTIC BRACKET

Publication Number WO/2009/009250
Publication Date 15.01.2009
International Application No. PCT/US2008/066622
International Filing Date 12.06.2008
IPC
A61C 7/30 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
7Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
12Brackets; Arch wires; Combinations thereof; Accessories therefor
28Securing arch wire to bracket
30by resilient means
A61C 7/28 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
7Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
12Brackets; Arch wires; Combinations thereof; Accessories therefor
28Securing arch wire to bracket
A61C 7/14 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
7Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
12Brackets; Arch wires; Combinations thereof; Accessories therefor
14Brackets; Fixing brackets to teeth
CPC
A61C 2201/007
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
2201Material properties
007using shape memory effect
A61C 7/28
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
7Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
12Brackets; Arch wires; Combinations thereof; Accessories therefor
28Securing arch wire to bracket
A61C 7/30
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
7Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
12Brackets; Arch wires; Combinations thereof; Accessories therefor
28Securing arch wire to bracket
30by resilient means; ; Dispensers therefor
Applicants
  • 3M INNOVATIVE PROPERTIES COMPANY [US]/[US]
Inventors
  • POSPISIL, Jirina V.
  • THORSTENSON, Glenys A.
  • HO, Joyce C.
  • BRENNAN, Joan V.
Agents
  • SOO, Philip P.
Priority Data
11/775,25310.07.2007US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NARROW CERAMIC SELF-LIGATING ORTHODONTIC BRACKET
(FR) SUPPORT ORTHODONTIQUE ÉTROIT AUTOLIGATURANT EN CÉRAMIQUE
Abstract
(EN)
A ceramic orthodontic bracket has a centrally located clip for retaining an archwire in an archwire slot. The body of the bracket includes a mesial section, a distal section, and a bridge section, wherein the bridge section extends through, and retains, the clip. The bridge section also includes a recess adjacent to the bridge section that facilitates debonding of the bracket from a patient's tooth. Preferably there are gaps on one or both sides of the clip to allow space for debonding of the bracket by applying a mesial-distal compressive force on the bracket and fracturing the bracket along the recess. This configuration allows the overall mesial-distal width of the bracket to be reduced, thereby facilitating the bonding of brackets to narrow and/or maloccluded teeth. Another embodiment includes a stop member that is connected to the base of the bracket and retains the clip on the bridge section.
(FR)
L'invention concerne un support orthodontique en céramique qui présente une pince située de manière centrale pour retenir un fil métallique pour arc dans une fente pour fil métallique pour arc. Le corps du support comprend une section mésiale, une section distale et une section de pontage, la section de pontage s'étendant à travers la pince et la retenant. La section de pontage comprend également un renfoncement adjacent à la section de pontage qui facilite le détachement du support de la dent d'un patient. De préférence, il existe des espaces sur un ou sur les deux côté de la pince pour permettre un espace pour le détachement du support en appliquant une force de compression mésiale-distale sur le support et en cassant le support le long du renfoncement. Cette configuration permet à la largeur mésiale-distale globale du support d'être réduite, facilitant l'attachement des supports à des dents étroites et/ou mal occluses. Un autre mode de réalisation comprend un élément d'arrêt qui est relié à la base du support et retient la pince sur la section de pontage.
Latest bibliographic data on file with the International Bureau