Invention Grant
- Patent Title: Narrow ceramic self-ligating orthodontic bracket
- Patent Title (中): 窄陶瓷自带正畸托架
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Application No.: US11775253Application Date: 2007-07-10
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Publication No.: US07686613B2Publication Date: 2010-03-30
- Inventor: Jirina V. Pospisil , Glenys A. Thorstenson , Joyce C. Ho , Joan V. Brennan
- Applicant: Jirina V. Pospisil , Glenys A. Thorstenson , Joyce C. Ho , Joan V. Brennan
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Philip P. Soo
- Main IPC: A61C3/00
- IPC: A61C3/00

Abstract:
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.
Public/Granted literature
- US20090017411A1 NARROW CERAMIC SELF-LIGATING ORTHODONTIC BRACKET Public/Granted day:2009-01-15
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