Journal of Research and Advancement in Dentistry
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Year : 2017
Volume : Volume 7
Issue : Issue 2
Address for correspondence :
Dr. Arvind Jain
drarvindcmdo@gmail.com
Background: The goal of endodontic therapy is removal of the irritants contained in infected root canals and total obliteration of the root canal system in three dimensions so as to obtain a fluid tight seal - both apically and coronally. Root-end filling should be deemed as a routine, inseparable procedure during apical surgery to improve the prognosis of teeth with apical pathology even in case of apparently well-obturated root canals, as even they may harbour infection1.The objective of this study was to compare sealing capabilities of different filling materials when used as retrograde filling materials following apiceotomy (to check their sealing abilities as retro filling). Materials and Methods: The root canals of 44 extracted single rooted upper anterior human teeth were used in this study. Each tooth was apically resected at 90 degrees to its long axis and the root surface isolated with two coats of nail polish.The teeth were decoronated and the roots were obturated by lateral compaction of guttapercha and sealer. Teeth were divided into 3 groups, the 1st group received Zinc free high-copper amalgam as retrograde filling, the 2nd group was retro filled with Mineral trioxide Aggregate (MTA).The third unlabelled control group received no retrograde root filling. All these teeth were suspended in 1% methylene blue dye at room temperature for 72 hours, the roots were sectioned and dye penetration measured by using stereomicroscope. The sealing abilities of these materials were determined by their ability to inhibit dye penetration. Result: The result of this study has shown that zinc-free amalgam showed maximum mean leakage when used as a root-end filling material. Conclusion: The Mineral trioxide aggregate is more effective as compared to zinc free amalgam which showed poor sealing abilities.
Keywords: Root-end filling, Zinc-free high-copper amalgam with varnish, Mineral trioxide Aggregate (MTA), In vitro, Sealing efficacy.
