Dentsply Sirona Inc.

Dentsply International Inc.

Jörg Kempter

Joachim E Klee

Christoph Weber

Uwe Walz

Andreas Facher

Simon Stelzig

Stephanie Noerpel

Gordon Brian Blackwell

Oliver Elsner

Florian Szillat

Maximilian Maier

Caroline Renn

Jacques Lalevee

Mariem Bouzrati-Zerelli

Julie Kirschner

Stefan Brugger

Denise Achilles

The present invention relates to a photocurable dental composition comprising a specific polymerization initiator system containing the combination of a photoinitiator compound and a coinitiator compound being a sulfinate compound or a sulfonate compound. The present invention also relates to the use of this polymerization initiator system in a photocurable dental composition.

Photocurable dental 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

A hardening composition comprising a particulate glass, said glass comprising 10-35% by weight of silica, 10-35% by weight of alumina, 3-30% by weight of zinc oxide, 4-30% by weight of POand 3-25% by weight of fluoride, and an acidic copolymer reactive with the particulate glass under aqueous conditions. An aqueous polymer solution comprising 10 to 65% by weight of the acidic copolymer of the hardening composition with a mean molecular weight of from 50,000 to 200,000, obtainable by a process comprising the copolymerization of a mixture containing acrylic acid and an acrylic acid ester (I) and/or a compound of the formula (II) and, optionally, a compound of the formula (III): wherein k is an integer of from 1 to 5; h is an integer from 0 to (5&#x2212;k); n is an integer of from 1 to 3; R1 is hydrogen or a C1-6 alkyl group, and; R2 and R3 independently represent hydrogen, a C1-6 alkyl group or a moiety of the following formula (IV): wherein m independently is an integer of from 0 to 3, and L is &#x2014;CH&#x2014; or &#x2014;CH&#x2550;CH&#x2014;; provided that at least one of R1, R2 or R3 is not hydrogen.

Dental glass compositions utilizing a glass ionomer and an acidic copolymer

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Constance, Germany

Jörg Kempter