Results: X-ray diagnosis showed translucency of alveolar bone around some molars with vertical root fracture.Decrease of alveolar bone height or wedge shape absorption was found in diseased region.

• 结果:X线显示牙根纵裂的牙齿,个别根周出现牙槽骨破坏吸收性阴影,病变部位牙槽骨高度降低或呈楔形吸收,根管腔增宽或出现明显的根纵裂片移位,牙齿向病变方向倾斜。