The capillary network close to the root of tooth.
靠近牙根侧为毛细血管网。
Its unable to repair dowel crown because of its shorter root of tooth.
残根太短，一般无法利用桩冠修复。
Do you see this gray area around the root of this tooth?
你能看见这颗牙齿齿根周围的灰色部分吗？
Objective We treats the stubborn lower jaw rubs root of a tooth point Zhou Yan.
目的治疗顽固性下颌磨牙根尖周炎。
Thickness of the tooth body; Root canal therapy; Research.
牙体壁厚度；根管疗法；研究。
Thickness of the tooth body; Root canal therapy; Research.
牙体壁厚度；根管疗法；研究。
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