Coral Bone Graft Verses Xenograft With Immediate Implant in Maxillary Anterior Esthetic Zone

Autogenous bone graft is considered to be the golden standard for grafting as it has osteoconductive , osteoinductive and osteogenic functions , however it has the problems of donor site morbidity , the need for two surgeries as well as post operative swelling and discomfort of the patient , so alternative bone grafts as alloplast has been introduced. Coral bone has a structure which is similar to that of cancellous bone , its mechanical properties is similar to that of bone and it consists of high content of calcium carbonate scaffolds that has the advantages of being biodegradable , biocompatible and osteoconductive , they act as a carrier for growth factors and allow cell attachment , growth , spreading , differentiation and has been found to be effective bone graft