The effect of insertion rate on the adaptability of gutta-percha and the apical extrusion of thermoplasticized gutta percha obturation techniques

Abstract EN

Background : In the Thermopile system little is known about the effect that varying rates of insertion have on the adaptability of thermo plasticized GP and the amount of apical extrusion.

Materials and methods : thirty simulated root canals were obdurate with thermopile obturators and Apex it Plus sealer at three different insertion rates.

The obdurate canals were sectioned at three different levels, the sealer average film thickness for each section was calculated and the amount of apical extrusion for each canal was conducted.

Results : the higher adaptability was seen with the faster insertion rate while the slower insertion rate showed fewer tendencies to cause apical extrusion.

Conclusions : the intermediate insertion rate had the best results between the other two rates for both adaptability and apical extrusion.