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牙髓的基本构造包括哺银性纤维,造牙本质细胞和未分化问叶细胞,毛细血管,细的动静脉血管等。牙髓组织的增龄变化有。一、牙髓萎缩 1.网状萎缩型:牙髓与牙本质相连,随着增龄牙髓细胞的变小,而呈现出网眼状。网眼萎缩好发于冠部牙髓。据Frohlick报导,随着增龄而网状萎缩的出现情况如附表1。从表中可看出30岁以后,半数以上病例均可出现,50岁以后则全部病例均可出现。
The basic structure of pulp includes silver-fed fibers, odontoblasts and undifferentiated leaf cells, capillaries, fine arteriovenous vessels and the like. Age changes in pulp tissue with. First, the pulp atrophy 1. Reticular atrophy type: pulp and dentin connected, with the aging of smaller dental pulp cells, showing a mesh-like. Mesh contraction occurs in the crown pulp. According to Frohlick, the appearance of reticular atrophy with age has been reported in Schedule 1. As can be seen from the table after the age of 30, more than half of the cases can occur, after 50 years of age all cases can occur.