This book is about application of xenograft in bone healing. Bone grafting is performed to restore bone that has been lost due to trauma, tomurs, osteomyelitis etc... That requires replacement. Bone grafts are necessary to provide support, fill voids, and enhance biologic repair of skeletal defects. Different bone grafts have been reported for bone healing using. Biologic bone grafts can be divided into the following subtypes: autografts, allografts, xenografts, synthetic materials, and any combination thereof. Bone grafts can be employed for functions other than to stimulate bone formation within a defect. Anonlay graft laid over facial bone surfaces could augment the cheek prominence or restore facial contour. Xenografts are grafts shared between different species. There are several studys about using different animals in xenografting such as canin, cattle, porcine and coral graft.