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ORTHODONTIC BRACKET SYSTEM
专利权人:
Lawrence F. Andrews
发明人:
Lawrence F. Andrews,Will A. Andrews
申请号:
US13473416
公开号:
US20120295213A1
申请日:
2012.05.16
申请国别(地区):
US
年份:
2012
代理人:
摘要:
The orthodontic bracket system includes a bracket having a base for attachment to a tooth surface, a stem above the base, tie wings extending from the stem for securing ligatures, and an archwire slot for receiving an archwire defined by the stem and tie wings. Distal and mesial side surfaces of the bracket base are perpendicular to the archwire slot to allow a rotational device to apply rotational force to a tooth perpendicular to the archwire with direct vector-line guidance. Occlusal and gingival edges of the bracket base between the tie wings are scooped-out or recessed to provide more space to receive a tool under an elastic ligature, and select corners of the tie wings are beveled enlarging space to facilitate entry of instruments for removing wire ligatures, to facilitate instrument access for removal and replacement of ligatures, while streamlining tooth rotation to make arch correction more efficient.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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