치조골신장술과 자가골이식술의 안정성을 비교한 전향적 임상시험연구
A Prospective Study Comparing Post Operative Stability after Distraction Osteogenesis and Bone Graft in Alveolar Augmentation
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Introduction: The aim of this study was to compare the stability of using auto bone graft and distraction osteogenesis for vertical augmentation of resorbed alveolar ridges for implant installation. Method: A total of 14 patients with extremely resorbed alveolar bone were selected and randomly divided into two groups. Auto bone graft was used in the control group (n=7) and distraction osteogenesis was used for the experimental group (n=7). New bone formation was evaluated radiographically by comparing the differences in alveolar preoperatively, after 4 weeks, after 12 weeks and after 24 weeks. Results: Immediately after surgery (T1), an increase in vertical bone height of 4.12±1.01 mm was obtained in the control group. After 4 weeks (T2), vertical bone height was evaluated in each group (Control Group vs Experimental Group; 3.60±0.86 mm vs 5.77±1.71 mm). After 12 weeks (T3), the increase in vertical height of bone was about 3.18±0.68 mm (Control Group) vs 5.56±1.75 mm (Experimental Group). After 24 weeks (T4), increase in vertical bone height for the control group was 2.70±0.41 mm and 5.43±1.74 mm for the experimental group. Comparing bone resorption in each period, the bone resorption between 4 weeks after and 24 weeks after, showed significant difference between the two groups (p=0.03) (0.89±0.69 mm vs 0.34±0.29 mm). Conclusion: Distraction osteogenesis and auto bone graft can be used for reconstruction of horizontal and vertical alveolar bone defects with high prognosis when properly indicated. With 6 month observation period, distraction osteogenesis showed lower bone resorption, so it was a favorable procedure on alveolar bone augmentation.
Abstract
Introduction: The aim of this study was to compare the stability of using auto bone graft and distraction osteogenesis for vertical augmentation of resorbed alveolar ridges for implant installation. Method: A total of 14 patients with extremely resorbed alveolar bone were selected and randomly divided into two groups. Auto bone graft was used in the control group (n=7) and distraction osteogenesis was used for the experimental group (n=7). New bone formation was evaluated radiographically by comparing the differences in alveolar preoperatively, after 4 weeks, after 12 weeks and after 24 weeks. Results: Immediately after surgery (T1), an increase in vertical bone height of 4.12±1.01 mm was obtained in the control group. After 4 weeks (T2), vertical bone height was evaluated in each group (Control Group vs Experimental Group; 3.60±0.86 mm vs 5.77±1.71 mm). After 12 weeks (T3), the increase in vertical height of bone was about 3.18±0.68 mm (Control Group) vs 5.56±1.75 mm (Experimental Group). After 24 weeks (T4), increase in vertical bone height for the control group was 2.70±0.41 mm and 5.43±1.74 mm for the experimental group. Comparing bone resorption in each period, the bone resorption between 4 weeks after and 24 weeks after, showed significant difference between the two groups (p=0.03) (0.89±0.69 mm vs 0.34±0.29 mm). Conclusion: Distraction osteogenesis and auto bone graft can be used for reconstruction of horizontal and vertical alveolar bone defects with high prognosis when properly indicated. With 6 month observation period, distraction osteogenesis showed lower bone resorption, so it was a favorable procedure on alveolar bone augmentation.
참고문헌 (42)
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