USE OF AN UNFILLED OR FILLER-FILLED, ORGANICALLY MODIFIED SILICA (HETERO)POLYCONDENSATE IN MEDICAL AND NON-MEDICAL PROCESSES FOR MODIFYING THE SURFACE OF A BODY MADE OF A PREVIOUSLY HARDENED, UNFILLED OR FILLER-FILLED SILICA (HETERO)POLYCONDENSATE, MORE PARTICULARLY FOR CHAIRSIDE TREATMENT IN DENTISTRY

摘要

The present invention relates to an organically modified, organically crosslinkable silica (hetero)polycondensate or composite, comprising an organically modified, organically crosslinkable silica (hetero)polycondensate and a filler, for intraoral use, in particular for use in the repair of an existing tooth replacement located within the mouth of a patient or for the application of a glaze layer to an anatomatically reduced milled main body of a crown already located within the mouth of a patient, where the existing tooth replacement or the main body of the crown is composed of a material which has free hydroxy, carboxy, thio or amino groups or which forms these on its surface after a physico-chemical treatment, and/or which optionally has active C=C double bonds, comprising the following steps within the mouth of the patient: (a) if necessary, carrying out work on the existing tooth replacement in order to remove constituents that are damaged or that are no longer needed, (b) application of an adhesion promoter to the surface of the replacement tooth on which work has optionally been carried out, or of the main body of the crown, (c) coating of the adhesion-promoter-coated surface of the tooth replacement on which work has optionally been carried out or of the main body of the crown with the organically modified silica (hetero)polycondensate or the composite in liquid or paste form, and (d) hardening, via organic crosslinking by means of curing by light or redox-induced curing, of the coating obtained in accordance with (c), where the adhesion promoter is, or comprises, a compound which has at least two identical substituents selected from hydroxy groups, isocyanate groups, epoxy groups, optionally activated carboxylic acid groups, thiol groups, primary and secondary amino groups, cyclic carbonate groups and groups having an optionally activated C=C double bond. The invention further relates to the use of the specified materials for dental purposes which are realized in the laboratory, and also for purposes in a non-dental sector.