SP-33 - Non-Surgical Root Canal Re-Treatment on Teeth with Various Filling Materials

Non-surgical root canal re-treatments represent very large spectrum of situations that can occur in endodontic practice. Various first treatment modalities have to be considered. Access to root canal system itself is sometimes challenging and great interest is being paid to fragment removal or perforation repair. However, not as often, safe dismantling of the actual root canal filling is being discussed.
In my 24 year practice, root canal fillings in Czech republic went from resorcinol-formaldehyde resins (Russian red) in poorly instrumented roots to various condensation techniques and sealers in over-instrumented canals. With everything in between. Due to human migration, variety of daily practice cases may be increased.
The lecture is focused at methods of removing of various root canal fillings. Unique methods are implemented in hybrid manner - combination of instruments moved by rotary or ultrasonic propellant, various solvents, several rinse activators. The procedure preserves the precious dentine structure as much as reasonable and minimises apical debris extrusion to prevent flare-ups. Long term success/survival rates will be presented.