Evaluation of smear layer removal by bicarbonate soda, ethylenediamine tetraacetic acid with cetrimide and sodium hypochlorite with a new model

摘要: Various methods are used to evaluate irrigants. The primary aim was develop a model for preliminary testing of potential second investigate the effect bicarbonate soda on smear layer by comparing it with ethylenediamine tetraacetic acid cetrimide (EDTAC) and sodium hypochlorite (NaOCl). Extracted human single-canal teeth were halved, uniform filing method create layer. following solutions then applied ‐ distilled water (control), 1% NaOCl, 17% EDTAC at concentrations 1%, 5%, 10% 15%. Some samples had multiple in different sequences. Samples examined scanning electron microscopy. Representative images scored based degree remaining. Results analysed SAS system, using GENMOD procedure. Complete found treated all except alone. There no significant differences between sequences, EDTAC/NaOCl/EDTAC NaOCl/EDTAC/ NaOCl. groups without soda. In conclusion, effective chemical effects Bicarbonate did not remove provided additional cleaning after