结论：山羊下颌无牙区及下颌第一前磨牙区可作为牵张成骨增高牙槽嵴新的实验动物模型。
CONCLUSION: the no tooth area and the first premolar area of mandible in sheep is a good experimental animal model for alveolar ridge augmentation by distraction osteogenesis.
结果矫治后上下颌尖牙至尖牙间每个前牙间牙槽骨的高度均有降低，但统计学无差异。
Results The alveolar height of anterior teeth from canine to canine decreased, but it didn't show significantly difference after treatment.
上下颌磨牙段牙槽骨高度三组无差异，基本处于参考范围内。
The alveoli dentales height of upper and lower molar shows no significant difference.
在模板指导下，于猪下颌骨的无牙区预备种植窝，总计8个。
Under the guidance of the template in edentulate area of pig jaws, amounting to prepare planting 8 holes.
在模板指导下，于猪下颌骨的无牙区预备种植窝，总计8个。
Under the guidance of the template in edentulate area of pig jaws, amounting to prepare planting 8 holes.
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