A sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin.
动物身体硬而尖锐的部分或附属肢体；如豪猪的刚毛或鱼鳍的骨脉。
2
Autogenous root could be used for alveolar ridge augmentation, in combination with bone graft materials can be achieving osseointegration.
自体牙根可作为固位装置，结合表面骨移植增高牙槽晴，可达到良好的骨整合。
3
Objective: The aim of this study is to evaluate the feasibility of using vertical bone-separating technique in widening the horizontal lack of alveolar ridge in implantology.