PURPOSE: This retrospective study presents treatment alternatives for fractures of the edentulous mandible. METHODS: A chart review of 34 patients with fractures of the edentulous mandible was performed. Patients were followed with clinical and radiographic examinations. RESULTS: Five different treatment groups were used, ranging from closed treatment to bone graft augmentation and immediate placement of dental implants. Twenty-five patients showed good bony union. Frequent complications were encountered, including pseudarthrosis, fractured plates, and persistent dysesthesia. Augmentation was more stable when implants were placed simultaneously. CONCLUSION: Treatment needs to be based on the type and location of the fracture and the degree of atrophy. Augmentation in combination with implants appears to be a good treatment for fractures of the edentulous mandible.