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Dental Retraction Cord Band(s)
专利权人:
Linda Edwards
发明人:
Linda Edwards
申请号:
US15056218
公开号:
US20170245967A1
申请日:
2016.02.29
申请国别(地区):
US
年份:
2017
代理人:
摘要:
A dental retraction cord band is used to create a gap between a tooth under repair and the surrounding gingival tissue. The gap between the tooth and the gingival tissue is necessary to make an accurate impression for subsequent construction of a crown or bridge. The dental retraction cord band is constructed from an elastic material such as cotton, fits snugly around the tooth and is pressed into the space between the tooth and gingival tissue. When the dental retraction cord band is removed, a gap is created between the tooth and gingival tissue for placement of the mold device and construction of an accurate impression of the tooth. The dental retraction cord band may be constructed of various sizes to fit around various sizes of teeth. The dental retraction cord band may also be constructed in different widths to make a larger or small gap as desired.
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中国工程科技知识中心
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