• Maxillofacial Plastic and Reconstructive Surgery
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• 제28권2호
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• pp.154-165
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• 2006

Objectives : It is difficult to place implants at a severely atrophied edentulous mandible because of vertical and horizontal alveolar defect. The autogenous and allogenic bone graft and guided bone regeneration are useful, but there are some limitations such as the resorption and infection of the grafted bone, and insufficiency of soft tissue. Distraction osteogenesis has recently evolved a challenging technique to overcome major draws of conventional augmentation procedures, we, therefore, report the four applications of implant placement after vertical alveolar distraction osteogenesis. Patients and Methods : Four patients(all female, mean age: $60{\pm}6$ years) with severe alveolar ridge deficiencies at their anterior mandible were treated with vertical alveolar distraction osteogenesis by intraoral device(Track 1.5, 15 mm model, KLS Martin, Tuttlingen, Germany) and placement of implants (Branemark MK III, TiUnite). After the latency periods of 5, 7, 8 days, distraction rhythm and rate were $0.5\;mm{\times}2\;times/day$ in the case of good bone quality, and $0.25\;mm{\times}3\;times/day$ in the case of poor bone quality. After consolidation periods of mean fifteen weeks, five implants for each patients were placed at the interforaminal area. Results : On average, a vertical gain of $11.38{\pm}1.38\;mm$ was obtained by distraction. And all distraction zone showed complete ossification by panoramic radiography. There were no postoperative complications other than numbness of lower lip in one case. Total twenty implants in four patients were placed and their outcomes were satisfactory. Conclusion : It is a useful method to place five implants after vertical distraction osteogenesis of the severely atrophied mandible for the implant-supported fixed prosthesis.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제31권4호
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• pp.330-333
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• 2009

저자들은 본 증례의 경우 치근이 흡수된 전치와 매복 견치의 발치 후 심한 치조골의 흡수와 연조직의 변화가 예상되는 것을 고려하여 발치 후 즉시 임플란트 수술을 결정하였다. 초기 안정성을 확보하기 위해 가능한 적은 골삭제, 보다 큰 직경과 치근형태의 임플란트를 선택하여 발치 후 즉시 임플란트를 식립하였고, 장골에서 채취한 망상골로 골결손부를 채우고 부가적으로 상순 지지를 위해 흡수성 차폐막과 순측 골면에 onlay형태의 골이식술을 시행하여 자연스럽고 심미적인 결과를 얻을 수 있었다.