Dentsply International Inc.

Dentsply Sirona Inc.

Ivoclar Vivadent Ag

Dentsply Detrey G.m.b.h.

Andreas Facher

Joachim E Klee

Christoph Weber

Simon Stelzig

Helmut Ritter

Oliver Elsner

Sven Pohle

Uwe Walz

Julia Gansel

Jörg Kempter

Stephanie Noerpel

Maximilliam Maier

Gottfried Rohner

Ulrich Salz

Rolf Mulhaupt

Gordon Brian Blackwell

Harald Kerschbaumer

Konrad Hagenbuch

Maximilian Maier

Clemens Andreas Häfele

Martin Bertagnolli

Arnd Peschke

Karl Lanbacher

Stefan Brugger

Mareike Bardts

Simone Dudda

Martin Mitterhofer

Martin Schmider

Chritoph Weber

Michael Gente

Jorg Kempter

A partial dental arch is provided with dentin material and with cutting material and a boundary area therebetween. It includes a primary-position tooth region and additional tooth regions which are arranged more distally. A wavy structure of the boundary area is provided whose amplitude&#x2014;when viewed in the distal direction&#x2014;decreases in at least one section of the mesial-distal and/or occlusal-gingival extension, in particular with regard to the occlusal-gingival direction.

Partial dental arch and method for manufacturing a partial arch

A process for producing a water-soluble, hydrolysis-stable, polymerizable polymer, comprising a) a step of copolymerizing a mixture comprising (i) a first copolymerizable monomer comprising at least one optionally protected carboxylic acid group and a first polymerizable organic moiety, and (ii) a second copolymerizable monomer comprising one or more optionally protected primary and/or secondary amino groups and a second polymerizable organic moiety, for obtaining an amino group containing copolymer; b) a step of coupling to the amino group containing copolymer a compound having a polymerizable moiety and a functional group reactive with an amino group of repeating units derived from the second copolymerizable monomer in the amino group containing copolymer obtained in the first step wherein the optionally protected amino group is deprotected, so that polymerizable pendant groups are linked to the backbone by hydrolysis-stable linking groups, and, optionally, a step of deprotecting the protected carboxylic acid group after step (a) or step (b), for obtaining a polymerizable polymer.

Polymer for a glass ionomer cement

Dental cement composition comprising (i) a particulate filler reactive with a polyacid in a cement reaction; (ii) a water-soluble polymerizable compound of the following formula (1), AXn (1) wherein A is a linker group containing at least n nitrogen atoms and optionally one or more acidic groups, X are moieties containing a polymerizable double bond and forming an amide bond with a nitrogen atom of A, which X may be the same or different and are represented by the following formula (2) wherein Rand Rare independent from each other and represent a hydrogen atom, a Calkyl group or a group &#x2014;(CH)&#x2014;Z, wherein Z is COOM, OPOM, POM, SOM, and M is independently a hydrogen atom or a metal atom, and m is an integer of from 0 to 6, L is a bond or a Calkylene group; and n is an integer of at least 1; provided that at least one X cannot be a (meth)acryl group; and (iii) an initiator system; optionally a polyacidic polymer having polymerizable double bonds; and optionally water. 

Dental cement composition

A process for the preparation of composite filler particles, comprising: (a) coating a particulate filler having a median particle size (D50) of from 1 to 1200 nm; (b) agglomerating the coated particulate filler, for providing a granulation of the coated particulate filler wherein the granulation contains the coated particulate filler particles whereby the at least one coating layer may be crosslinked by crosslinking groups obtained by reacting the reactive groups and optionally a further crosslinking agent.

Composite filler particles and process for the preparation thereof

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

Dental composition comprising (i) a particulate filler; (ii) a polymerizable hydrolysis-stable compound of the following formula (1) AXwherein A is a linker group containing at least n nitrogen atoms and optionally one or more acidic groups, X are moieties containing a polymerizable double bond and forming an amide bond with a nitrogen atom of A, which X may be the same or different and are represented by the following formula (2) wherein Rand Rare independent from each other and represent a hydrogen atom, a Calkyl group or a group &#x2014;(CH)&#x2014;Z, wherein Z is COOM, OPOM, POM, SOM, and M is independently a hydrogen atom or a metal atom, and m is an integer of from 0 to 6, L is a bond, a Calkylene group; and n is an integer of at least 1; provided that at least one X cannot be a (meth)acryl group; and (iii) an initiator system.

Dental composition

Dental composition comprising a water-soluble polymerizable compound of the following formula (1): wherein A is a linear or branched linker group represented by the following formula (3), wherein the nitrogen atom of at least two of the termini forms an amide bond with an X moiety; wherein R' represents a hydrogen atom or a substituted or unsubstituted aliphatic or cycloaliphatic hydrocarbon group, wherein each R may be the same or different L, L, and Lwhich may be the same or different, independently represent a single bond, or a Cstraight-chain, branched or cyclic hydrocarbon group optionally containing from 1 to 6 heteroatoms selected from nitrogen and oxygen in the backbone of the hydrocarbon group, and optionally from 1 to 6 functional groups selected from carboxylic acid groups or a salt thereof, hydroxyl groups, thiol groups and amino groups, and in case a plurality of Land Lare present, each of Land Lmay be the same or different; Qand Q, which may be the same or different, independently represent a single bond or a linkage selected from an amide, a urethane, a urea and a thiourea linkage; k is an integer of at least 0, X are moieties containing a polymerizable double bond and forming an amide bond with a nitrogen atom of A, wherein each X may be the same or different and are represented by the following formula (2): wherein Rand Rare independent from each other and represent a hydrogen atom, a Calkyl group or a group &#x2014;(CH)&#x2014;COOM, wherein M represents a hydrogen atom or a metal atom, m is an integer of from 0 to 6, L is a bond or a Calkylene group; and n is an integer of at least 2; (ii) an initiator system; optionally a polyacidic polymer; optionally water and/or a water soluble solvent; and optionally a particulate filler. 

An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises&#x2014;S.sub.xH groups, wherein x is an integer of from 1 to 6, which crosslink the particulate glass and/or the linear polycarboxylic acid and/or the optional dispersed nanoparticles and/or the optional low molecular compound.

One-component heat-curable sealant composition for the protection of exposed dental surfaces, comprising

Laser curable polymerisable composition for the protection of hard tissue

Polymerizable dental composite comprising a solid filler and an organic polymerizable matrix, said polymerizable matrix comprising:

Carboxylic acid containing dispersants for composites

Growing community of inventors

Gundetswil, Switzerland

Andreas Facher