Title:efficacy of Four Different Irrigation Techniques Combined with 60oc 3% Sodium Hypochlorite and 17% Edta in Smear Layer Removal

We would like to submit the enclosed manuscript titled “Efficacy of Four Different Irrigation Techniques Combined with 60oC 3% Sodium Hypochlorite and 17% EDTA in Smear Layer Removal”, which we wish to have considered for publication as original research in the BMC Oral Health . No conflicts of interest exist in the submission of this manuscript, and all of the material has been approved by the authors for publication. I would like to declare on behalf of my co-authors that the work described is an original research investigation, which has neither been previously published nor been under consideration for publication elsewhere, in whole or in part. The enclosed manuscript has been approved by all of the respective authors.