短語詞組短語furcation defect 根分叉病變root furcation 牙根分叉furcation seletive 分叉選擇性Track Furcation 航跡分叉furcation involvement 根分叉病變;根叉病變;分叉病變furcation kirschner 分叉克氏針borehole furcation 井眼分叉furcation selective 分叉選擇性apical furcation 根尖分叉 返回 furcation