Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya, Aichi, 464-8650, Japan.
Department of Oral Maxillofacial Radiology, School of Dentistry, Aichi Gakuin University, 2-11 Suemori-dori, Chikusa-ku, Nagoya, Aichi, 464-8651, Japan.
J Oral Biosci. 2022 Jun;64(2):259-262. doi: 10.1016/j.job.2022.02.003. Epub 2022 Feb 10.
This article aimed to achieve a better understanding of cementum hyperplasia in the maxillary second molars lost due to periodontitis. Six maxillary second molars with hypercementosis were measured for the mineral concentration using micro-computed tomography and calcium element distributions using electron microprobe analysis. Calcium was distributed throughout the cementum, although the mineral concentration differed based on the cementum depth. The hyperplastic cementum was of the extrinsic fiber-rich cellular mixed stratified type. These results have implications for future studies aiming to diagnose hypercementosis. Further studies are needed to investigate the composition of the cementum matrix.
本文旨在更好地了解因牙周炎而丧失的上颌第二磨牙的牙骨质增生。使用微计算机断层扫描测量了 6 颗上颌第二磨牙的矿质浓度，使用电子探针分析了钙元素的分布。钙分布在整个牙骨质中，尽管矿质浓度因牙骨质深度而异。增生的牙骨质为外生性纤维丰富的细胞混合分层型。这些结果对未来旨在诊断牙骨质增生的研究具有重要意义。需要进一步的研究来调查牙骨质基质的组成。
