International Centre of Electron Microscopy for Materials Science, Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology Al. A. Mickiewicz 30, 30-059 Kraków, Poland.
International Centre of Electron Microscopy for Materials Science, Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology Al. A. Mickiewicz 30, 30-059 Kraków, Poland.
Micron. 2020 Oct;137:102913. doi: 10.1016/j.micron.2020.102913. Epub 2020 Jun 18.
The cement - enamel junction (CEJ) gains a growing interest in clinical dentistry, due to an increasing number of idiopathic tooth resorption leading to the inevitable loss of permanent dentition. Therefore, in this research study, we investigated healthy and under resorption teeth to verify junctions' morphology in relation to the resorption process, its initiation, and propagation. Using light and scanning electron microscopy we examined the three types of CEJ: 1) coronal cementum, 2) abutment) and 3) the gap between cementum and enamel. With energy-dispersive X-ray spectroscopy (EDX) we analyzed the Ca and P concentration along the CEJ border. The study indicated the strict correlation between the gap junction and tooth resorption, due to the dentine exposure to the oral environment.
牙骨质-釉质界（CEJ）在临床牙科中越来越受到关注，因为越来越多的特发性牙齿吸收导致不可避免的恒牙丧失。因此，在这项研究中，我们调查了健康和吸收的牙齿，以验证与吸收过程、起始和传播有关的交界处形态。使用光镜和扫描电子显微镜，我们检查了三种类型的 CEJ：1）冠部牙骨质、2）基牙、3）牙骨质和釉质之间的间隙。我们通过能谱 X 射线分析（EDX）沿 CEJ 边界分析 Ca 和 P 浓度。研究表明，由于牙本质暴露于口腔环境中，缝隙连接与牙齿吸收之间存在严格的相关性。
