Jebmh.com Original Article J. Evid. Based Med. Healthc., pISSN- 2349-2562, eISSN- 2349-2570/ Vol. 3/Issue 32/Apr. 21, 2016 Page 1497 APICAL SEAL BETWEEN ADHESIVE ROOT CANAL OBTURATION SYSTEM AND GUTTA-PERCHA/AH-PLUS SEALER: AN IN VITRO COMPARISON STUDY Girish Kulkarni 1 1 Professor, Department of Endodontics, Private Practitioner and Consulting Endodontist, Bangalore. ABSTRACT BACKGROUND Three dimensional obturation of the root canal is important for success of root canal treatment. Microleakage is one of the reason for root canal failure. Numerous materials have been used for obturation of which Gutta-percha is the most successful with variety of sealers. One of the recent material to further improve root canal treatment success rate is use of Resilon with Epiphany root canal sealer to apply adhesive concepts in to endodontics. An adhesive bond forms between Epiphany sealer, Resilon and dentin, making it monolithic hence less microleakage if any significantly. METHODS 60 single rooted mandibular premolars were dissected at cement enamel junction with diamond disc. Root canals were explored and working length measured using K file. Root canals of all 60 samples were prepared with ProTaper and irrigated with 5% sodium hypochlorite and 17% EDTA solution. Teeth were divided in to group A and B, each having 30 samples. Group A teeth obturated with Resilon Epiphany obturation system and group B with Gutta-percha and AH-plus sealer. All specimens were stored in incubator for 30 days. Clearing process of samples done with Robertson’s technique to make them transparent. All the specimens were immersed in 2% methylene blue dye solution for 7 days. Specimens were then examined under stereomicroscope with 10x magnification to measure dye penetration in mm with image analysis software. The data collected were analysed statistically. RESULTS This study showed that Resilon Epiphany group has a mean leakage of 1.2307, while the Gutta-percha/AH-plus had a mean leakage of 3.6133. There was statistically significant differences between Resilon and Gutta-percha groups. CONCLUSIONS 1). Resilon Epiphany group showed less apical microleakage than Gutta-percha/AH-plus obturation. 2). Based on result obtained it is suggested that Resilon Epiphany can be recommended for root canal obturation. KEYWORDS Resilon epiphany, AH plus, Methylene blue dye. HOW TO CITE THIS ARTICLE: Kulkarni G. Apical seal between adhesive root canal obturation system and Gutta-percha/AH- plus sealer: An in vitro comparison study. J. Evid. Based Med. Healthc. 2016; 3(32), 1497-1501. DOI: 10.18410/jebmh/2016/339 INTRODUCTION: The objective of root canal treatment is to remove diseased pulp, and prepare root canal biomechanically and disinfect it and seal root canal space three dimensionally with obturating material. 70 % of root canal treatments fail due to incomplete obturation or poor quality of seal apically and coronally. Gutta-percha is most commonly used material since many years to obturate root canal space with good success rate with different types of sealers like Zinc oxide, AH26, AH- plus etc. But Gutta-percha has shortcomings like nonadhesive to root canal walls and sealers used with it. Recently new approach to achieve bond between obturating material and root canal dentin through adhesive sealer is introduced, that is Resilon Epiphany system. Resilon is thermoplastic polymer material and consists of bioactive glass, bismuth oxychloride, and barium sulphate. Epiphany consists of Bis-GMA, UDMA, hydrophilic difunctional methacrylate and polymerisation initiator. The bond forms between root canal dentin, epiphany sealer, and Resilon obturating material which reduces microleakage significantly. 1 Many studies shown that Resilon epiphany system is superior to Gutta-percha as obturating material. 1,2,3,4,5,6 Some studies using bacterial microleakage, fluid infiltration, electrochemical evaluation shown that Resilon Epiphany system is better than any other obturating material and sealer. 2,3,4,5,6 The purpose of this study is to assess the sealing ability of Resilon Epiphany and Gutta-percha obturating material with AH-plus sealer. AIM OF THE STUDY: The aim of this in vitro study is to evaluate and compare microleakage of Resilon Epiphany and Financial or Other, Competing Interest: None. Submission 22-03-2016, Peer Review 05-04-2016, Acceptance 13-04-2016, Published 21-04-2016. Corresponding Author: Dr. Girish Kulkarni, #240/1, 2main, Banashankari 2 nd Stage, Bangalore. E-mail: jaguaramazon@gmail.com DOI: 10.18410/jebmh/2016/339