Teeth resorption at cement - enamel junction (CEJ) - Microscopy analysis

Sara Metwally; Urszula Stachewicz

doi:10.1016/j.micron.2020.102913

Teeth resorption at cement - enamel junction (CEJ) - Microscopy analysis

Micron. 2020 Oct:137:102913. doi: 10.1016/j.micron.2020.102913. Epub 2020 Jun 18.

Authors

Sara Metwally¹, Urszula Stachewicz²

Affiliations

¹ 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.
² 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. Electronic address: ustachew@agh.edu.pl.

PMID: 32590194
DOI: 10.1016/j.micron.2020.102913

Abstract

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.

Keywords: CEJ; Cementum; Enamel; Junction; Resorption; Teeth.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Dental Cementum / ultrastructure*
Dental Enamel / ultrastructure*
Humans
Microscopy / methods
Microscopy, Electron, Scanning / methods*
Tooth Cervix / ultrastructure*
Tooth Resorption*