A COMPARATIVE-STUDY OF THE SEALING ABILITY OF 2 ROOT-CANAL OBTURATIONTECHNIQUES

A comparison was made of the ability of two root canal obturating tech niques to prevent dye microleakage: gutta-percha lateral condensation and mechanically plasticized gutta-percha (JS Quickfill). Twenty centr al incisors were prepared and obturated by each technique, After rende ring the teeth transparent, linear dye penetration was found to be 0.4 8 and 0.52 mm, respectively. The difference between the two techniques was not significant. As for the distribution of the sealing cement (A H26) in the teeth obturated with JS Quickfill, the cement was located in the most peripheral zone of the obturation alongside the dentinal w alls, whereas the gutta-percha was found in the central part of the ca nal obturating material.