Effect of immediate and delayed post space preparation on apical leakage using three root canal obturation techniques after rotary instrumentation.


BACKGROUND/PURPOSE For teeth that have undergone root canal therapy post fabrication and subsequent crown restoration are often required to increase strength. It is necessary to remove a portion of gutta-percha during post space preparation that may cause displacement of the root canal fillings and affect their sealing ability. This study evaluated the… (More)
DOI: 10.1016/S0929-6646(11)60067-3


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