Kalashnikov Dmytro V, Hasiuk Petro A, Vorobets Anna B, Rosolovska Svitlana O, Kindiy Dmytro D, Hrad Anna O, Zubchenko Serhii G
Ukrainian Medical Stomatological Academy, Poltava, Ukraine.
I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine.
Wiad Lek. 2020;73(5):864-867.
The aim: To establish the features of the structural organization of enamel in various anatomical areas of the tooth and determine their influence on the characteristics of the course of biomineralization processes.
Materials and methods: The study of the structural features of enamel and dentin was performed on thin sections of various groups of teeth. Then morphological, histochemical and electron microscopic examination methods were used.
Results: The study found that there are three structural and functional barriers to biomineralization of enamel, which are located in different anatomical areas of the tooth crown. Each of them has both general and specific features. Enamel biomineralization is a continuous process of exchange of calcium ions, donor of which is brushite. The stepwise process of biomineralization turns the latter into calcium octaphosphate, which then turns into hydroxyapatite. The latter, when destroyed by carbon dioxide, forms carboxyapatite.
Conclusions: In the result of conducted study was established peculiarities of enamel mineralization processes in different anatomical parts of tooth.
目的是确定牙齿不同解剖区域牙釉质结构组织的特征，并确定它们对生物矿化过程进程特征的影响。
材料与方法：对不同组牙齿的薄片进行牙釉质和牙本质结构特征的研究。然后使用形态学、组织化学和电子显微镜检查方法。
结果：研究发现，牙釉质生物矿化存在三个结构和功能屏障，它们位于牙冠的不同解剖区域。每个屏障都有一般特征和特定特征。牙釉质生物矿化是钙离子交换的连续过程，其供体是透钙磷石。生物矿化的逐步过程将后者转化为八钙磷酸钙，然后再转化为羟基磷灰石。后者在被二氧化碳破坏时形成羧基磷灰石。
结论：通过所进行的研究确定了牙齿不同解剖部位牙釉质矿化过程的特点。
