Objective: to provide morphological basis for dental aging and senile teeth diseases and to study age-related changes of pulp-dentin complex of human premolar.

目的：研究人前磨牙牙髓牙本质复合体的增龄性变化，探讨牙衰老和老年牙病的形态学基础。

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The branch of dentistry dealing with diseases of the dental pulp.

牙科中有关牙髓疾病的分支。

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This part considers the classification of diseases of the dental pulp, together with various diagnostic AIDS to help in determining which condition is present, and the appropriate therapy.

这部分认为，疾病分类的牙髓，连同各种诊断器材，以帮助确定哪些条件，目前，和适当的治疗。

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