Due to a multiple step purification process maxgraft® is safe and preserves the advantages of human bone grafts. The human collagen in the ring is responsible for fast integration, healing and flexibility of the ring. A second surgical site to harvest bone and the associated risk of infection, donor-site morbidity and pain can be avoided. After implantation maxgraft® bonering is continuously remodeled into patients own bone. The ring can be used in almost all indications. botiss offers a surgical kit to provide all necessary instruments to apply maxgraft® bonering.