RESULTS:During the normal growth of teeth roots, apoplosis cells are found specially in odontoblasts, pulp, dental papilla, HERS and alveolar bone.

• 结果:牙根发育时期在成牙本质细胞、牙髓组织、牙乳头组织、上皮根鞘、牙槽骨组织中有特异件细胞调亡发生。