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乳恒牙交替时乳牙牙根吸收机制在颌骨和恒牙发生、钙化、成长过程中骨的新生和吸收同样起着很大的作用,骨的吸收首先由骨组织的无机物开始游离,由于局部的pH上升破坏磷灰石结晶。此外也提示作为钙螯合物的破骨细胞经趋化作用的羧〔基〕谷胺酸参与含有蛋白质(RGP)的磷灰石结晶。小儿颌骨的成长在骨外侧膜部有成骨细胞的增多,骨内膜部的破骨细胞的骨吸收及恒牙的发生、钙化以及乳牙牙根的吸收等均衡地同时进行,生长成为一定厚度的颌骨。因此研究乳牙牙根吸收的机制也是对颌骨生长机制的说明。本文采用SEM观察了乳牙根的牙本质、牙骨质吸
Primary and secondary teeth of the permanent teeth deciduous teeth root resorption mechanism occurs in the jaw and permanent teeth, calcification, growth and regeneration during bone regeneration and absorption also plays a large role in the absorption of bone by the bone tissue of inorganic began to free, due to local The pH increase destroys the apatite crystals. It is also suggested that the chemoattractant carboxylated glutamate, which is a chelator of calcium chelates, participates in apatite crystals containing protein (RGP). The growth of the jaw in children is accompanied by an increase in osteoblasts in the outer part of the bone, the resorption of osteoclasts in the endosteal part, the occurrence of permanent teeth, the calcification and the absorption of deciduous root. Jaws. Therefore, the study of deciduous root resorption mechanism is also an explanation of the growth mechanism of the jaw. In this paper, we observed the dentin and cementum of the root of primary teeth with SEM