84 страниц. 2011 год. LAP Lambert Academic Publishing Although numerous root canal filling materials are available, gutta-percha continues to be the product of choice, owing to its unique chemical and physical properties. Recently a new resin based system resilon epiphany has been introduced. It is used in combination with a self-etching primer to create a solid monoblock. Although the Epiphany sealer was primarily developed to be used in combination with polymer-based resilon points, the use of Epiphany in conjunction with Gutta Percha cones could offer a potential upperhand because gutta-percha is far economical than Resilon. This thesis work has compared various combinations of obturating materials to improve the fracture resistance of endodontically treated teeth.