1. Dr. A.M.Badraldin G.V.Black Dental Center Khartoum-Sudan Jully-2009

27. - Septodont.. September 2010 -Based on Active borosilicate Technology -Tri-calcium Silicate core -Designed to treat damage dentine- both for restorative( pulp capping) and endodontic indications( perforation & open apex.root canal repair material). Advantages:- - Biocompatible… eliminates the risk of adverse tissue response. - Help to preserve pulp vitality by promoting reactionary dentine genesis - reduce the postoperative sensitivity by its outstanding sealing properties. - Easy to use – need no surface condition or bonding. - compactable strength - quick setting Usage :- - deep class V cavities - gross root caries - restore endodontic - access cavities - indirect pulp capping - open apex

28. Disadvantages:- 1- fast setting may lead to cracks in side the hardened biodentine 2-Have no long lasting antibacterial action (this action exist only during setting 10-12 m) Setting of biodentine is based on chemical reaction between CSC powder and CaCi2 which proceed fast. Slow setting ensures high pH which is maintained for along time.