Regenerative Treatment of Serious Periodontosis With Grafting of Cancellous Iliac Bone and Gingival Flaps and Replanting of Patients' Teeth

The purpose of this study was to assess the ability of serious periodontosis patients to regain satisfactory biting function, using the patients' own teeth, by regeneration of the alveolar bone. Twelve serious periodontosis patients whose alveolar bone was markedly absorbed and whose teeth were quite unstable were treated with replanting of their teeth and grafting of cancellous iliac bone and gingival flaps by the clinical team, which consisted of plastic surgeons and dentists. No patients developed postoperative complications (e.g., infections), and grafted iliac bone took in all patients. The total number of replanted teeth was 65, and only 4 of them fell off (92% take rate). Three to 4 months after surgery, the replanted teeth received prosthetic treatment so that the patients could begin biting. Ten patients were monitored for 5 months or longer, and they started to eat normal food after the fifth month. Regained biting function and satisfaction of having food were almost the same as before the periodontosis became severe in these 10 patients. Regeneration of alveolar bone was confirmed in later radiographs. To date, the maximum follow-up period is 2 years and 8 months (average = 1 year and 6 months). All patients have good biting function, and there have been no findings of absorption of reconstructed alveolar bone or of the root of replanted teeth. This treatment method would be quite useful for patients with serious periodontosis.