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 无细胞牙骨质(acellular cementum):也称原发性牙骨质,紧贴牙骨质表面,主要由牙骨质层板构成而无细胞。分布在牙颈部到近根尖 1/3 处,牙颈部往往全部由无细胞牙骨质占据。Acellular cementum:Also called primarycementum, acellular cementum is close to t (共 453 字) [阅读本文] >>