METHOD OF PREPARATION AND FILLING OF ROOT CANAL OF TOOTH, ENDODONTIC INSTRUMENT AND ENDODONTIC INSTRUMENT FOR FILLING OF ROOT CANALS Russian patent published in 1999 - IPC

FIELD: medicine, namely therapeutic stomatology. SUBSTANCE: preparation and filling of root canal of tooth consists in mechanical treatment of canal by endodontic instruments with subsequent filling of canal with filling material. Canal is expanded by instruments, operating part of which is made of alloy with effect of memory of form preliminarily deformed for reducing of diameter and has sharp cutting edge. Walls and inputs of apical branchings are cleaned with 37-per cent solution of orthophosphoric acid. Canal and branchings are filled by means of instruments operating part of which is made of alloy with effect of memory of form. Instrument is heated for 2-4 s to temperature of 39-40 C with aid of diathermocoagulation apparatus. Endodontic instrument for filling of root canals is made as holder with spiral-shaped operating part, material of which is deformed preliminarily for reduction of diameter. Spiral is capable of filling material pressing to apical part of root canal and into inputs of branchings. EFFECT: improved quality of filling. 9 cl, 1 ex, 3 dwg