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It may have antimicrobial activity but relatively limited when compared to NaOCl [6]. Hence, the ideal irrigant should possess the antibacterial properties and should have the ability to dissolve the smear layer. Peracetic acid is strongest disinfect known with antibacterial, sporicidal, antifungal and antiviral. It has been used in the former [http://www.selleckchem.com/JAK.html JAK inhibitor] German democratic republic as single endodontic irrigant [7]. In vitro studies done by Lottanti et al., and De dues et al., proven that peracetic acid is effective in removal of smear layer [8,9]. Therefore, in this study peracetic acid was used to dissolve the smear layer as well as to disinfect the root canal instead of other decalcifying agents [9]. Recently, EDTA based formulations have been used as final rinse solutions,  such as Smear clear (Sybron endo, orange, CA) containing EDTA, detergent and cetrimide. This irrigant is specifically designed for the smear layer removal [10]. Some of the studies reported that presence of the smear layer obstructed the penetration of sealers into  dentinal tubules and decreased the bond strength of root canal sealers to root dentin.Many studies proposed to use final rinsing to remove the smear layer [11]. Further there have been no studies comparing the effect of peracetic acid with smear clear when employed as a final rinse on push out bond strength of commonly employed root canal sealers of three commonly employed root canal sealers. Hence, the aim of the present study is to compare the effectiveness of peracetic acid and smear clear on the  pushout bond strength of three commonly used endodontic sealers kerr, Apexit plus, AH plus to root dentin. Materials and Methods Experimental short study was conducted in August 2014 for a period of one month at Mamata Dental College. The study protocol was approved by research and ethics committee of Mamata Dental College and Hospital, Khammam, India. Informed consent was taken from patient before extraction. Sixty six non carious vital mandibular premolars with single roots, extracted for orthodontic reasons, were selected. Teeth with caries, cracks, bifurcated canals, extreme calcification were excluded from the study. Teeth were stored in 0.1% of thymol until further use. Before instrumentation, crowns of each teeth were sectioned at cemento enamel junction using a water cooled diamond disc to obtain a standardized root length of 13mm.Working length was established by inserting k-file No.15(Mani, Tokyo, Japan) short of the apex. The root canals were instrumented and enlarged using Protaper nickel titanium rotary instruments (DENTSPLY, Germany) to size F 3,9% taper, at the working length. Irrigation with 5ml of 2.5% NaOCl was performed between each file size. The samples were then randomly divided into 3 groups (1 control & 2 Experimental groups) according to the final irrigation regimen. GROUP-1 (n=6):5ml of normal saline (CONTROL) (Nirlife, Gujarat) GROUP-2 (n=30):5ml of freshly prepared 0.