Recently, advances and great progresses in bio-medical research offer exciting opportunities for the study on the formation of dentin-pulp complex.

近年来，生命前沿科学领域的飞速发展和重大进展，也掀起了牙本质牙髓形成研究的热潮。

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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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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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