DSI Zenoss Bovine Natural Bone Graft Ring For Single Stage TreatmentDSI Zenoss Ring The Bone ring is an innovative solution for single stage three dimensional bone augmentation and implant placement. The ring allows immediate implant placement and bone augmentation in one step. It does not require a second surgical procedure and that way it drastically reduces the treatment time and the restoration time by at least several months. There is no need for additional fixation screws because the implant fixates the bone