[Control of sealing ability of the root canal sealers. An experimental study--in vitro].

Prime requirement for successful root canal therapy is the hermetic obturation of the root canal. Root canal sealers contribute a lot in achieving the three dimensional hermetic obturation of the root canal. In this in vitro experimental study the sealing ability of six root canal sealers (Grossman, Roth 801, Hermetic, Diaket, AH26, Endomethasone) was evaluated. A hundred and twenty single rooted human teeth, divided into six groups, were prepared and obturated with lateral condensation gutta-percha technique and the sealers under evaluation correspontantly. The extent of mikroleakage of Indian ink in cleared samples was calculated under stereoscopic microscope. Results obtained showed minimum leakage with Roth 801.