牙髓坏死
The discovery would possibly be beneficial to continuous development of the root of young permanent tooth with dental pulp necrosis and apical periodontitis after appropriate treatment.
这一发现可能有利于根尖未发育完成的年轻恒牙发生牙髓坏死以及由此引起的根尖周炎经适当的治疗后牙根的继续发育。
The main changes were pulp inflammation, pulp necrosis and pulp degeneration.
其主要类型为牙髓炎症、坏死和退变。
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