Vertical osteodistraction – A method for preimplantological regeneration of the alveolar ridge

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Vertical osteodistraction – A method for preimplantological regeneration of the alveolar ridge

E. Haupt, K. Langowsky, M. Walter, U. Eckelt: Vertical osteodistraction – A method forpreimplantological regeneration of the alveolar ridge. Mal. J. Oral Maxillofax. Surg. 2002:2: 25–29.

Abstract:A new and effective therapy for increasing the alveolar ridge is verticalosteodistraction where in-between the bone segments to be distracted, new bonesdevelop. Twelve patients (average age of 54) consisting of 9 females and 3 maleswere operated on and treated by using submucous extraosseous micro and minidistractors.Among 8 patients presenting with an atrophy of the alveolar ridge, 6 cases weredistracted in the interforaminal region and 2 cases in the molar region. In another2 cases, osteodistraction of a free iliac crest transplant was performed to reconstructthe defect after tumour resection and for the remaining 2 cases, osteodistractionwas used to rectify the defect caused by fractures of the alveolar process.The expected bone regeneration in the distraction gap occurred in 11 patientsbut in one patient with a history of diabetes mellitus, the poor bone healing led tothe loss of the osteotomised bone segment.After distraction and prior to implant insertion a vestibuloplasty was necessaryin 3 patients. Implant systems used were the Frialit-II-System (9 cases) and the IMZ-System (3 cases).We see the advantage of the osteodistraction in contrast to the conventionalfree bone transplantation. Simultaneously, aside from an increase in the localregenerated bone, there is also a gain in the soft tissue of the attached mucosa.