Ballal, Vasudev Smear layer removal with F-file. [electronic resource] - Australian endodontic journal : the journal of the Australian Society of Endodontology Inc Dec 2011 - 147; author reply 148 p. digital Publication Type: Letter; Comment ISSN: 1747-4477 Standard No.: 10.1111/j.1747-4477.2011.00333.x doi Subjects--Topical Terms: Dentin--ultrastructureHumansRoot Canal Preparation--instrumentationSmear Layer