Schüpbach P, Guggenheim B, Lutz F
Department of Oral Microbiology and General Immunology, University of Zurich, Switzerland.
Caries Res. 1990;24(3):145-58. doi: 10.1159/000261258.
The histopathology of human root caries was examined in extracted teeth. The present study details several stages of advanced carious lesions in root dentin. Lesions of different severities were assessed by different optical methods. Four major root caries patterns were defined and significant differences between coronal and root caries elucidated. The patterns were distinguishable by (1) their location at the exposed root surface, (2) their mode of spreading towards the root canal and over the root surface, (3) their mode of bacterial spreading in dentin and (4) the role of dentinal defense mechanisms. In addition, a comparison of clinical and histological classification of lesions revealed that the carious process extended much deeper towards the root canal and had a higher degree of both bacterial infection and dentin demineralization than could be predicted by clinical examination.
在拔除的牙齿中检查了人类根龋的组织病理学。本研究详细描述了根牙本质中晚期龋损的几个阶段。通过不同的光学方法评估了不同严重程度的病变。定义了四种主要的根龋模式，并阐明了冠龋和根龋之间的显著差异。这些模式可通过以下方式区分：（1）它们在暴露根表面的位置；（2）它们向根管和根表面扩散的方式；（3）它们在牙本质中细菌扩散的方式；（4）牙本质防御机制的作用。此外，病变临床分类与组织学分类的比较表明，龋病进程向根管延伸得更深，细菌感染和牙本质脱矿程度均高于临床检查的预测。
