CHEMICALLY BOUND CERAMIC PRODUCT, METHOD FOR PRODUCING THE PRODUCT, INSTRUMENT APPLICABLE IN IMPLEMENTING THE METHOD AND INTERCHANGEABLE INSTRUMENT PART Russian patent published in 2006 - IPC A61K6/06 C04B28/06 

FIELD: medicine; medical engineering.

SUBSTANCE: raw material briquette has one or several powder-like binding agents. It is capable of producing chemically bound ceramic product after being saturated with liquid reacting with the binding agents. The raw material briquette preferentially has solid phase consolidation degree of 56-67% by volume. It also has one or several admixtures compensating expansion usable for giving long-term size stability properties to the material. Binding phase of one or several powder-like binding agents is made react with liquid capable reacting with the binding agents. A powder-like body comprising the binding agents is compressed to produce raw material briquette so that the powder-like body is exposed to high external pressure and low temperature enough for produce compact bound raw material briquette without agglomeration reaction taking place in consolidation phase. Raw material briquette solid phase consolidation degree preferentially makes up 56-67% by volume. One or several admixtures compensating expansion usable for giving long-term size stability properties to the material are added to the powder-like body. Dental instrument for introducing the raw material briquette into cavity has cylindrical envelope and rod enclosed into the envelope movable in axial direction. Instrument-sealing body has solid porous material selected from group composed of porous ceramic material, porous polymer material, porous metal material, porous wood material, porous ceramic material preferentially composed of hard wood, preferentially of birch.

EFFECT: improved long-term size stability properties.

35 cl, 12 dwg