“…Many materials like silver amalgam, composite, Mineral Trioxide Aggregate are used for this purpose. Glass Ionomer fulfilled our requirement also, as it is biocompatible and has long been used for repair of bony defects in head and neck, periodontal furcation defects, bone regeneration & as a bone substitute [11,12,13,14]. Moreover, Glass Ionomer when used for retrograde filling was found to have less micro leakage and less cytotoxicy [15].…”