Patents Assigned to R.T.D. - RECHERCHES TECHNIQUES DENTAIRES
  • TRANSPARENT AND RADIO-OPAQUE RETENTION PIN
    Publication number: 20080280263
    Abstract: 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.
    Type: Application
    Filed: October 26, 2007
    Publication date: November 13, 2008
    Applicant: R.T.D. - RECHERCHES TECHNIQUES DENTAIRES
    Inventors: Manh-Quynh Chu, Pierre-Luc Reynaud, Marc Reynaud
  • Transparent and radio-opaque retention pin
    Publication number: 20030031985
    Abstract: [The invention concerns a] A dental retention pin made of composite material[, comprising] includes a core consisting of [fibers] fibers embedded in a resin matrix. [Said pin is characterized in that t]The [fibers] 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 [(n)] of the [fibers] fibers.
    Type: Application
    Filed: September 16, 2002
    Publication date: February 13, 2003
    Applicant: R.T.D. - RECHERCHES TECHNIQUES DENTAIRES
    Inventors: Manh-Quynh Chu, Pierre-Luc Reynaud, Marc Reynaud