Osiri, S., Banomyong, D., Chotvorrarak, K. and Ruangsawasd, N. 2019. Effects of experimental ethylenediaminetetraacetic acid pastes with 0.2% cetrimide on smear layer formation at apical root canal walls prepared by rotary nickel titanium files. Mahidol Dental Journal. 39, 2 (Jun. 2019), 127–133.