Long Term Follow-Up in Inferior Alveolar Nerve Transposition: Our Experience
Figure 1
Classification system of six atrophy stages in the mandible according Cawood and Howell (1988). Atrophy stage 1: before extraction, stage 2: after extraction, stage 3: high well-rounded ridge, stage 4: knife-edge shaped ridge, stage 5: low well-rounded ridge, and stage 6: depressed bone level.