TY - BOOK AU - Dalia Mohamed Fathy Hassan Hussein AU - Elsayed Abouelfotowh Omar , AU - Jealan Mohamed Elshafei , AU - Suzan Abdul Wanees Amin , TI - An assessment of the antimicrobial effectiveness and surface topographic changes of root canal dentin walls following the use of chamomile and thyme extracts : : A comparitive in vitro study / PY - 2013/// CY - Cairo : PB - Dalia Mohamed Fathy Hassan Hussein , KW - Pain KW - Sodium hypochloride KW - Visual andlog scal N1 - Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics; Issued also as CD N2 - Introduction: postoperative pain is common after few hours or days after endodontic treatment.the development of postoperative pain after root canal treatment is usually due to acute inflammatory response in the periradicular tissue. Aim of study: to compare the effect of 1.3% and 5.25% sodium hypochlorite irrigating solutions on postoperative pain using visual analogue scale ER -