Percentage of canals filled in apical cross sections – an in vitro study of seven obturation techniques.

To compare the apical density of several obturation techniques when used in palatal roots of extracted maxillary molars. Simplifill as recommended, Thermafil, mechanical lateral and WVC (Schilder) obturation techniques created more complete obturation using gutta-percha at the 2 and 4 mm levels than cold lateral, WVC (continuous wave), and Simplifill not used as directed. [ABSTRACT FROM AUTHOR]