Patients with a compromised periodontal condition and a breakdown in occlusal support may require periodontal and prosthodontic treatment in conjunction with orthodontic treatment. Orthodontic treatment of these patients is possible and would involve removal of inflammation and occlusal interference and provision of an environment for proper restorative rehabilitation. A different approach to the orthodontic treatment of these patients is required in terms of treatment manner, stabilizing anchorage systems, force systems, retention, and plaque control during treatment. This report describes the case of a 49-year-old woman with severely compromised periodontal tissues, multiple missing teeth, and malocclusion. Highly esthetic and functional results were achieved by treatment with orthodontics as well as periodontal therapy, including guided tissue regeneration and implant restoration with sinus lift. Schlagwörter: advanced periodontal disease, implant restoration, interdisciplinary treatment, orthodontic treatment, pathologic tooth migration, periodontal treatment, prosthodontic rehabilitation, regenerative therapy