The present invention relates to compounds and silicic acid (hetero)polycondensates comprising structures of formulas (1) and/or (2), ##STR00001## R.sup.2 is a hydroxy group or a free carboxylic acid residue or a carboxylic acid ester derived therefrom or a salt derived therefrom, R.sup.3 denotes a residue having a hydrocarbon-containing branched or unbranched backbone which is bonded to silicon by carbon, and can be arbitrarily interrupted by heteroatoms or coupling groups or by other heteroatom-containing groups, where the zigzag line purely schematically denotes the hydrocarbon-containing backbone, the three not more closely characterized bonds of the Si-atom represent additional residues bonded to the silicon atom, selected from residues that can be hydrolyzed from silicon, hydroxy groups and residues bonded to silicon by carbon which can have the same meaning as R.sup.3 or can have a different meaning deviating therefrom, or represent oxygen bridges to further silicon atoms and/or other metal atoms in the case the structure (1) is part of a silicic acid (hetero)polycondensate, the residue Y is either divalent, and then has the meaning of S, NR.sup.4 or P(O)(R.sup.4).sub.c(Z).sub.d with ZOR.sup.4, c=0 or 1, d=0 or 1 and (c+d)=1, or trivalent and has the meaning of N or P(O), R.sup.4 represents a hydrocarbon-containing residue and in the NR.sup.4 residue can in addition have the meaning of hydrogen, W is a substituted or unsubstituted hydrocarbon residue bonded to Y, the chain of which can be interrupted by S, O, NH, NR.sup.4, C(O)O, NHC(O), C(O)NH, NHC(O)O, C(O)NHC(O), NHC(O)NH, S(O), C(S)O, C(S)NH, NHC(S), NHC(S)O, Ar is a residue that carries at least one aromatic group which is unsubstituted or substituted with one or more residues, where the aromatic groups do not carry substituents, selected from boronic acid-, the carboxylic acid-, the phosphine acid-, the phosphonic acid- and the sulfonic acid group and from hydroxy groups, where Ar must be bonded to W if a0, Z is selected from urethane-, acid amide-, ether- and ester groups, R.sup.1 is a straight chain or branched, organically polymerizable group carrying at least one CC double bond, and the index e is 1, 2, 3, 4 or an integer greater than 4, the index a is equal to 0 or 1 or 2, the index b=1, 2, 3 or an integer greater than 3 if a0, and b=1 or 2 if a=1, the index m is 1, 2 or an integer greater than 2, the index n is 0, 1, 2 or greater than 2 and the index o is 1 or 2 or greater than 2.
composites and organically polymerized masses produced therefrom and methods for producing the same.

A dental composition comprising a pre-reacted particulate mineral trioxide aggregate (MTA) dispersed in a polymer matrix wherein the content of MTA in the composition is in the range of 20 to 50 percent by weight based on the total weight of the composition.

Provided herein are composite materials comprising a thiol-ene polymer resin in a continuous phase and a filler in a discontinuous phase, the filler comprising fluorapatite crystals and silica. Further provided are methods of using these composite materials as restoratives in dental applications. This dental composite is labeled as smart because, when the shrinkage stress of the composite is greater than a programmable or pre-selected threshold level, it will elicit visual clues for the dentist.

An adhesion promoter for endodontic sealant compositions for filling and sealing a root canal.

The invention provides a high strength dental composition including polymerizable dental resins. The dental composition is useful as restorative material and for making various dental devices, such as artificial teeth, crowns and bridges of high strength dental polymeric material.

The present application is directed to a curable composition and a method for isolating a working area in a patient's mouth. The curable composition can include a borate-crosslinked polysiloxane, at least one ethylenically unsaturated monomer comprising at least two polymerizable groups, and an initiator.

The invention relates to a polysiloxane compound comprising specific siloxane units, curable dental materials comprising one or more than one polysiloxane compound according to the invention, cured dental materials obtainable from the curable dental materials according to the invention, a method for preparation of polysiloxane compounds according to the invention, a method for preparing curable polysiloxane compounds according to the invention and a method for preparing cured dental materials according to the invention.