Dentistry – Method or material for testing – treating – restoring – or... – Cleaning
Reexamination Certificate
2006-05-09
2006-05-09
Lewis, Ralph A. (Department: 3732)
Dentistry
Method or material for testing, treating, restoring, or...
Cleaning
C433S037000, C433S080000
Reexamination Certificate
active
07040897
ABSTRACT:
A dental treatment system comprises membrane treatment tray that is self-conforming to a person's own teeth when used with a sticky dental treatment composition and a support skeleton. The support skeleton maintains the flexible membrane tray in the form of tray prior to placing the tray over a person's teeth. A sticky viscous composition is either provided in or applied to the membrane tray, and then the treatment system is placed so as to position the membrane tray over the upper or lower teeth of the person. The support skeleton (internal or external) is separated from the membrane tray so that just the membrane tray remains over the person's teeth during the desired dental treatment. The sticky viscous composition holds the membrane tray against the teeth and helps it to at least partially conform to the shape of the teeth. The membrane dental tray is useful for teeth bleaching and other dental treatments known in the art.
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Technical Bulletin: Hydrogen Peroxide-Polyvinylpyrrolidone Polymer Complexes, International Specialty Products, 1361 Alps Road, Wayne New Jersey 07470, www.ispcorp.com (Dec. 2003).
Fischer Dan E.
McLean Bruce S.
Lewis Ralph A.
Ultradent Products Inc.
Workman Nydegger
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