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Abstract
Introduction
The purpose of this study was to evaluate the clinical result of vertical alveolar distraction, especially the distracted alveolar bone and installed implants.
Materials and Methods
Twenty-one patients who have been received the vertical alveolar distraction and implant installation on 22 areas (3 maxilla and 19 mandible) using intraoral alveolar distraction device were examined. After consolidation period of 3–4 months, distraction devices were removed and 91 implants were installed in the distracted alveolar bone. The distracted bone and implants were evaluated clinically and radiographically.
Results
Mean height of distracted alveolar bone was 7.5±3.2 mm (range: 2.5–15.0 mm). Mean follow-up period after completion of the distraction was 3.1 years (range: 1.4–11.5 years). Mean resorption of distracted alveolar bone was 1.6±1.8 mm. The success and survival rates of implants was 95.3% and 100%, respectively.
References
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Fig. 1.
Intraoral vertical alveolar distractor. Uttom Kumar Shet et al: Evaluation of augmented alveolar bone with vertical alveolar distraction osteogenesis and implant installation. J Korean Assoc Oral Maxillofac Surg 2011
Fig. 2.
Panoramic radiographs of the patient who underwent alveolar bone distraction osteogenesis (ABDO) after marginal mandibulectomy. A: Before the ABDO, B: Immediate after the ABDO, C: After the ABDO, just before the device removal and implant installation, D: Implant installation. postoperative six months (from the distraction osteogenesis device application), E: Completion of the prothodontic treatment. postoperative one year, F: postoperative eight years four months. Uttom Kumar Shet et al: Evaluation of augmented alveolar bone with vertical alveolar distraction osteogenesis and implant installation. J Korean Assoc Oral Maxillofac Surg 2011
Fig. 3.
Measuring of the gained bone height. Uttom Kumar Shet et al: Evaluation of augmented alveolar bone with vertical alveolar distraction osteogenesis and implant installation. J Korean Assoc Oral Maxillofac Surg 2011
Table 1.
Clinical features of patients and distraction osteogenesis
Table 2.
Characteristics of the operative area
| Presence of the adjacent tooth | Full edentulous | 4 |
|---|---|---|
| Partial edentulous | 17 | |
| Site distribution | Maxilla | 3 |
| Mandible | 19 |
Table 3.
Data of bone resorption at different time frame
| At implant placement | At abutment connection | At the end of study | |
|---|---|---|---|
| Mean±SD | 0.6±0.7 | 0.9±1.0 | 1.6±1.8 |
| Range | 0–2.5 | 0–2.6 | 0–6.5 |
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