Preformed dental composite crown, process of production and use thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10610330
APP PUB NO 20190021815A1
SERIAL NO

16078455

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Abstract

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The invention relates to a preformed dental composite crown being characterized by its shape and chemical composition, the shape being characterized as follows: having an occlusal top surface and depending buccal, mesial, distal and lingual side surfaces, the side surfaces being connected to each other and forming a crown cervix, the wall thickness of the crown at the crown cervix being lower than 0.6 mm; at least two of opposing depending side surfaces having a concave shape; the chemical composition of the material the preformed dental composite crown is made of being a hardened composition comprising the following components: nano-filler(s) in an amount from 20 to 70 wt. %, resin matrix in an amount from 20 to 75 wt. %, wt. % with respect to the weight of the chemical composition, the resin matrix comprising urethane(meth)acrylate(s) and (meth)acrylate(s) not comprising a urethane moiety. The invention also relates to a kit of parts comprising such a preformed dental composite crown, processes for producing such crowns and the use of such a crown for treating a dental tooth.

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Patent Owner(s)

Patent OwnerAddress
SOLVENTUM INTELLECTUAL PROPERTIES COMPANY2510 CONWAY AVE E 3M CENTER 275-6E-21 MAPLEWOOD MN 55144

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hecht, Reinhold Kaufering, DE 41 465
Herrmann, Andreas Munich, DE 209 851
Hofmann, Bernhard Peissenberg, DE 15 34
Korten, Malte Moorenweis, DE 55 309
Mayr, Helmar B Kaufering, DE 14 64
Meurer, Till Bonn, DE 9 65
Raia, Gioacchino Turkenfeld, DE 34 170
Schechner, Gallus Herrsching, DE 46 408

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