Ivoclar Vivadent Ag

Ivoclar Ag

Ulrich Salz

Volker Rheinberger

Norbert Moszner

Peter Burtscher

Thorsten Bock

Jörg Zimmermann

Urs Karl Fischer

Robert Liska

Frank Zeuner

Alexandros Gianasmidis

Andre Rumphorst

Frank Müller

Iris Lamparth

Heinrich Gruber

Simone Klapdohr

Jörg Tiller

Jorg Angermann

Andr&eacute; Rumphorst

Marcel Schweiger

Gottfried Rohner

Helmut Ritter

Rolf Mulhaupt

Christian Gorsche

Katharina Landfester

Kurt Grabher

Angela Mucke

Beate Ganster

Armin Burgath

Andreas Facher

Christoph Weder

Thomas Hirt

Kai Rist

Rolf Mülhaupt

Wolfram H&ouml;land

Thomas Voelkel

Thomas V&ouml;lkel

Karin Vogel

Arnd Peschke

Rüdiger Landers

Gina Fiore

Rolf Mühlhaupt

Delphine Catel

Astrid Gugg

Gerald Ullrich

Dirk Poppe

Christian Waschinski

Roland Neubert

Michael Gente

Simone Dudda

Georg Draheim

Gilbert Ott

Heinz Durr

Christoph Peter Fik

Helma Baeuerlein

Werner Storch

Herbert Wolter

Volker M Rheinberger

Christian Heinzmann

Tiller Jörg

Christoph P Fik

Angela MÜCKE

Ulrich Ziener

Marissa Volz

A composition, containing a carrier medium and particles based on a metal compound with a weight-average particle diameter of 1 nm to 10 &#x3bc;m is useful to clean metal or ceramic surfaces which are part of a dental restoration or of an implant abutment.

Compositions containing cleaning particles

Primer formulation which contains (1) at least one alkoxysilane monomer of the general formula RSi(OR)(I), wherein Rstands for an organic residue which contains at least one ethylenically unsaturated, polymerizable group, Rstands for a C-Calkylorganic residue and n is 1, 2 or 3, wherein the residues Rand Rcan each be the same or different; (2) at least one polyhydrogen fluoride salt of the general formula (R)(HF)(II), wherein Rstands for a metal cation from the series of the alkali, alkaline earth or transition metals or for an ammonium ion of the formula (R)(R)(R)(R)N, in which RRRand Reach independently of each other stand for H or Cto Calkyl, Cto Calkenyl or C-Caryl residues, wherein R, R, Rand Rcan be the same or different, and wherein two of these residues can be bound together to form a heterocycle together with the nitrogen atom and wherein three of the residues and the nitrogen atom can together form a pyridinium ion, x is an integer from 2 to 5, preferably 2 to 4, in particular 3, z corresponds to the valence of the cationic residue R, (3) organic solvent, and (4) water.

Dental primer formulation

The present invention relates to a device and a method for the application of composites in tooth cavities. The device consists of a spray gun with integrated lighting for light-polymerizable composites, a measuring unit and a control unit. The composites are applied under controlled, precisely dosed exposure to polymerization light. According to the invention, the composite initially runs onto the walls of the cavity or onto previously introduced filling material and then, as a result of the light exposure, is transformed into the gel state. Thus, a large part of the polymerization shrinkage of the composite occurs while the composite is still plastically deformable so that any formation of gaps is compensated by the composite continuing to flow. It is only at this point in time that a sufficiently high dosage of light is applied for complete curing to occur.

Device and method for the application of light-curing composites

The invention relates to a dental restorative material which comprises a thermolabile or photolabile polymerizable compound of Formula I:[(Z)-Q-X)]-T-[Y-Q-(Z)]&#x2003;&#x2003;Formula I,in which T represents a thermolabile or photolabile group, Zand Zin each case independently represent a polymerizable group selected from vinyl groups, CH&#x2550;CR&#x2014;CO&#x2014;O&#x2014; and CH&#x2550;CR&#x2014;CO&#x2014;NR&#x2014; or an adhesive group selected from &#x2014;Si(OR), &#x2014;COOH, &#x2014;O&#x2014;PO(OH), &#x2014;PO(OH), &#x2014;SOOH and &#x2014;SH, wherein at least one Zor Zis a polymerizable group, Qin each case independently is missing or represents an (m+1)-valent linear or branched aliphatic C-Cradical which can be interrupted by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;O&#x2014; or &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, Qin each case independently is missing or represents an (n+1)-valent linear or branched aliphatic C-Cradical which can be interrupted by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;O&#x2014; or &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, X and Y in each case independently are missing or represent &#x2014;O&#x2014;, &#x2014;S&#x2014;, CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;O&#x2014; or &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, R, R, Rand Rin each case independently represent H or a C-Calkyl radical and k, l, m and n in each case independently are 1, 2 or 3.

Dental materials based on monomers having debonding-on-demand properties

The invention relates to a dental restorative material which comprises (a) at least one antimicrobially active compound of Formula (I)[AG]-R&#x2014;Z&#x2014;SP&#x2014;Y&#x2014;R&#x2014;[WG]&#x2003;&#x2003;(I),or a filler that is surface-modified with at least one compound of Formula (I), (b) at least one radically polymerizable monomer and (c) at least one initiator for the radical polymerization. The invention also relates to a use of such dental restorative material for the preparation of an adhesive, primer, cement, coating material or filling material. The invention also relates to a dental material which comprises at least one compound of Formula (I), as well as a use of a compound of Formula (I) for modifying the surface of a substrate selected from ceramic materials, noble and non-noble metals, hard tooth structure, tooth enamel, dentine, collagen, soft tissue, mucous membrane and leather.

Dental restorative material based on an antimicrobially active compound

The invention relates to a dental restorative material which comprises a thermolabile compound of Formula I:[(Z)-Q-X)]-T-[Y-Q-(Z)]&#x2003;&#x2003;Formula I,in which T represents a thermolabile unit which contains at least one thermolabile group based on non-covalent interactions, Zand Zin each case independently represent a polymerizable group selected from vinyl groups, CH&#x2550;CR&#x2014;CO&#x2014;O&#x2014; and CH&#x2550;CR&#x2014;CO&#x2014;NR&#x2014; or an adhesive group selected from &#x2014;Si(OR), &#x2014;COOH, &#x2014;O&#x2014;PO(OH), &#x2014;PO(OH), &#x2014;SOOH and &#x2014;SH, Qin each case independently is missing or represents an (m+1)-valent linear or branched aliphatic C-Cradical which can be interrupted by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;O&#x2014; or &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, Qin each case independently is missing or represents an (n+1)-valent linear or branched aliphatic C-Cradical which can be interrupted by &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;, &#x2014;O&#x2014;CO&#x2014;NR&#x2014;, &#x2014;NR&#x2014;CO&#x2014;O&#x2014; or &#x2014;NR&#x2014;CO&#x2014;NR&#x2014;, X and Y in each case independently are missing or represent &#x2014;O&#x2014;, &#x2014;S&#x2014;, CO&#x2014;O&#x2014;, &#x2014;O&#x2014;CO&#x2014;, &#x2014;CO&#x2014;NR&#x2014; or &#x2014;NR&#x2014;CO&#x2014;, R, R, Rand Rin each case independently represent H or a C-Calkyl radical, k and l in each case independently are 0, 1, 2 or 3 and m and n in each case independently are 1, 2 or 3.

Dental materials based on compounds having debonding-on-demand properties

Composition which contains polymerizable binder and an initiator according to the following Formula I:R&#x2014;X&#x2014;O&#x2014;O&#x2014;[Y&#x2014;O&#x2014;O&#x2014;]R&#x2003;&#x2003;(Formula I)and having a large through-curing depth and a sufficiently long processing time and which cures without the development of high temperatures.

Polymerizable compositions with improved through-curing depth

A filler which is surface-modified with a compound of the formula [(PG)-R&#x2014;Z]&#x2014;SP&#x2014;[Y&#x2014;R-(AG)]is particularly suitable for use in dental materials, for the preparation of adhesives, coatings and composites.

Surface-modified fillers

The invention relates to an adhesion-promoter composition for the adhesive joining of metallic or ceramic dental materials to radically curing dental materials, wherein the adhesion-promoter composition contains an alkoxysilane monomer (i), a phosphoric acid ester monomer (ii), a sulphur-containing monomer (iii) and an organic solvent (iv).

Universal dental adhesion-promoter composition

Dental composition containing (i) at least one acid (meth)acrylamide monomer which has two or more polymerizable groups, (ii) at least one acid monomer which has only one polymerizable group and (iii) at least one polymerization initiator.

Hydrolysis-stable self-etching single-component dental adhesive

Polymerizable dental material which contains at least one radically-polymerizable monomer and at least one bisacylphosphine oxide of the Formula I, in which Ris a linear or branched Cto Calkyl residue, which can be interrupted by one or more O atoms, PG-Y&#x2014;R&#x2014;X&#x2014; or a substituted or unsubstituted, aromatic Cto Cradical; Ris absent or a linear or branched Cto Calkylene radical, which can be interrupted by one or more O atoms; Ris H, a linear or branched Cto Calkyl residue or PG-Y&#x2014;R&#x2014;X&#x2014;; Ris a linear or branched C-Calkyl or &#x2014;O&#x2014;C-Calkyl residue; Ris H or PG-Y&#x2014;R&#x2014;X&#x2014;; Ris H or PG-Y&#x2014;R13 X&#x2014;; PG is a polymerizable group; X is absent, O or S; Y is absent, O, S, an ester, amide or urethane group; the bisacylphosphine oxide having at least one PG-Y&#x2014;R&#x2014;X group and X and/or Y being absent if Ris absent.

Photopolymerizable dental materials with bisacylphosphine oxides as initiators

Polymerizable dental material, characterized in that it contains at least one (meth)acrylamide phosphate of the following general formula (I): in which Ris H or CH; Ris H or a C-Calkyl radical or forms together with the nitrogen atom to which it is bonded and one or more atoms which belong to Ror Ra heterocyclic ring; R, Rindependently of each other are a linear or branched aliphatic C-Cradical with a valency of m+n or p+n, an aromatic C-Cradical with a valency of m+n or p+n, or a cycloaliphatic, araliphatic or heterocyclic C-Cradical with a valency of m+n or p+n, wherein the carbon chains of the radical or radicals can be interrupted by O, S, CONR, OCONH, or form together with one or more atoms which belong to Rand the nitrogen atom, to which the Ris bonded a heterocyclic ring, R' being H if p=0, and Rbeing H, C-Calkyl, C-Caryl, C-aralkyl or a bicylic C-Cradial; n is 1, 2, 3 or 4 if p=0, and is 1 or 2 if p &#x2260;0; m is 1, 2, 3 or 4; p is 0, 1, 2, 3 or 4; x is 0 or S.

Self-etching dental materials based on (METH) acrylamide phosphates

Composition with at least one polymerizable binder and at least one polymerization initiator, which contains at least one acylgermanium compound according to general Formula (I), in which Ris a substituted or unsubstituted C-alkyl radical or an acyl group; Rand Rare H, an acyl group or have one of the meanings given for R; Ris a branched or linear C-alkyl radical which can be unsubstituted or substituted one or more times by &#x2014;O&#x2014;, &#x2014;NH&#x2014;, &#x2014;NR&#x2014;, &#x2014;S&#x2014; or interrupted by other groups, trimethylsilyl, hal-(CH)Si&#x2014;[OSi(CH)], (CH)Si&#x2014;[OSi(CH)]&#x2014;, &#x2014;COOH, &#x2014;COO&#x2014;R, &#x2014;CO&#x2014;NRR, &#x2014;CO-vinyl, &#x2014;CO-phenyl, phenyl-C-alkyl, phenyl, naphthyl or biphenyl, Ccycloalkyl, a 5 or 6-membered O, S or N-containing heterocyclic ring, halogen, OH, an aromatic Cradical which can be substituted or unsubstituted and/or interrupted by O, S or &#x2014;NR&#x2014;, or a branched, cyclic or linear Calkyl, -alkenyl, -alkoxy or -alkenoxy radical; m is 1, 2 or 3; n is 0 or 1 and p is 0 or 1; wherein in each case two of the radicals R, R, Ror Rcan be connected to each other accompanied by the formulation of a 5 to 8 member ring; and the use of acylegermanium compounds of Formula (I), for example, as initiator for radical polymerization.

Polymerizable compositions with acylgermanium compounds

Dental material which contains at least one compound of the formula [PG]&#x2014;R&#x2014;Z&#x2014;SP&#x2014;Y&#x2014;R&#x2014;[WG], in which m=1, 2 or 3; p=1, 2 or 3; R=is absent, a linear or branched Cto Calkylene radical which can be interrupted one or more times by O, S, NH, SiR', CONH CONR&#x2032;, COO and/or OCONH, a substituted or unsubstituted, aromatic Cto Cradical or a combination thereof R=is absent, a linear or branched Cto Calkylene radical which can be interrupted one or more times by O, S, NH, SiR&#x2032;, CONH CONR&#x2032;, COO and/or OCONH, a substituted or unsubstituted, aromatic Cto Cradical or a combination thereof; PG=a radically polymerizable group; SP=a polymeric spacer which is selected from polyethylene glycol, polypropylene glycol, polyglycerol, polyalkyloxazoline, polyethyleneimine, polyacrylic acid, polymethacrylic acid, polyvinyl alcohol, polyvinyl acetate, poly-(2-hydroxyethyl)acrylate, poly-(2-hydroxyethyl)methacrylate groups, hydrophilic polypeptide groups and copolymers of the corresponding monomers; WG=antimicrobially active group; Z=is absent, O, S, an ester, amide or urethane group; Y=is absent, O, S, an ester, amide or urethane group, and which has a molecular weight of at least 1,000.

Dental materials based on radically polymerizable macromers with antimicrobial effect

Growing community of inventors

Lindau, Germany

Ulrich Salz