SOCIETE DE RECHERCHES TECHNIQUES DENTAIRES - R.T.D.
发明人:
Manh-Quynh CHU,Pierre-Luc REYNAUD,Marc REYNAUD
申请号：
US15661390
公开号：
US20170319307A1
申请日:
2017.07.27
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A dental retention pin made of composite material includes a core consisting of fibers embedded in a resin matrix. The fibers, which have a refractive index (n), are radio-opaque, and the refractive index (n′) of the resin forming the matrix has a value close to that of the fibers.
