山东大学：《口腔组织病理学》课程教学资源（课件讲稿）第九章 龋病 Chapter 9 Dental Caries 釉质龋 Enamel Caries

山东子 ONG UN SHANDONG UNIVERSITY Enamel caries 口腔医学院 Department of Oral Pathology, shandong University

Department of Oral Pathology, Shandong University

Enamel Caries 是指发生在牙釉质内的龋(浅龋)。 ●釉质为高度矿化硬组织,组织病理学研究, 一般均通过磨片观察。 研究方法:普通显微镋、偏光显微镜、显 微放射摄影、扫描电镜、氩离子减薄技术 和高分辨电镜、生化分析。 Department of Oral Pathology, Shandong University http://1.51.214.13

Department of Oral Pathology, Shandong University 2 http://1.51.214.13 Enamel Caries  是指发生在牙釉质内的龋（浅龋）。  釉质为高度矿化硬组织，组织病理学研究， 一般均通过磨片观察 。  研究方法：普通显微镜、偏光显微镜、显 微放射摄影、扫描电镜、氩离子减薄技术 和高分辨电镜、生化分析

山东子 ONG UN SHANDONG UNIVERSITY Smooth surface caries 口腔医学院 Department of Oral Pathology, shandong University

Department of Oral Pathology, Shandong University

Smooth surface caries e Site of attack On the approximal surface On the gingival third of the buccal and lingual surfaces Department of Oral Pathology, Shandong University http://1.51.214.13

Department of Oral Pathology, Shandong University 4 http://1.51.214.13 Site of attack： On the approximal surface; On the gingival third of the buccal and lingual surfaces

Smooth surface caries -Clinical manifestation Department of Oral Pathology, Shandong University 5 http://1.51.214.13

Department of Oral Pathology, Shandong University 5 http://1.51.214.13  Clinical manifestation：

Smooth surface caries Department of Oral Pathology, Shandong University 6 http://1.51.214.13

Department of Oral Pathology, Shandong University 6 http://1.51.214.13

Smooth surface caries mIcroscope The early lesion is cone-shaped, with the base of the cone on the enamel surface and the apex pointing towards the amelodentinal junction. Department of Oral Pathology, Shandong University http://1.51.214.13

Department of Oral Pathology, Shandong University 7 http://1.51.214.13 Microscope： The early lesion is cone-shaped, with the base of the cone on the enamel surface and the apex pointing towards the amelodentinal junction

Smooth surface caries 光镜下分四层: 透明层 釉质 translucent zone 透明层 暗层 层 dark zone 病损体部 病损体部 牙本 body of the lesion 层 表层 surface zone Department of Oral Pathology, Shandong University 8 http://1.51.214.13

Department of Oral Pathology, Shandong University 8 http://1.51.214.13 光镜下分四层: 透明层 translucent zone 暗 层 dark zone 病损体部 body of the lesion 表 层 surface zone

Smooth surface caries SZ DZ Department of Oral Pathology, Shandong University http://1.51.214.13

Department of Oral Pathology, Shandong University 9 http://1.51.214.13 SZ B DZ TZ

Smooth surface caries tRanslucent zone >50% present >Negative birefringence >Pore volume. 1% Department of Oral Pathology, Shandong University 10 http://1.51.214.13

Department of Oral Pathology, Shandong University 10 http://1.51.214.13 Translucent zone 50% present Negative birefringence Pore volume: 1%