# 成牙本质细胞变性(Odontoblast Degeneration) - 器官 / 系统:牙齿 / 消化系统(tooth / alimentary-system) - NTP 数据编号:ntp-0250 - 规范 URL:https://www.labsmart.cn/ntp/tooth-odontoblast-degeneration.html - 中文图谱总页锚点:https://www.labsmart.cn/ntp-atlas.html#tooth-odontoblast-degeneration - 原始出处:https://ntp.niehs.nih.gov/atlas/nnl/alimentary-system/tooth/Odontoblast-Degeneration - 授权:美国联邦政府作品,公有领域;引用请标注 NTP Nonneoplastic Lesion Atlas - 适用说明:仅供科研使用,不用于临床诊断 ## 一句话结论 氟化物毒性是成牙本质细胞变性(odontoblast degeneration)最具特征性的原因(Figure 1、Figure 2,箭头)。 ## 病变描述(中文) 氟化物毒性是成牙本质细胞变性(odontoblast degeneration)最具特征性的原因(Figure 1、Figure 2,箭头)。成牙本质细胞变性的特征为细胞质减少、细胞数量减少、上皮细胞层排列紊乱以及细胞核极性丧失。该病变可为局灶性(focal)或弥漫性(diffuse)。成牙本质细胞变性会影响其产生牙本质的能力,并可能导致局灶性至弥漫性的牙本质发育不全或发育缺失,从而引起牙本质厚度的变化。已发表的关于小鼠此类效应的报道并不常见。 ## 诊断与分级建议(NTP 共识,中文) 成牙本质细胞变性应当根据变性程度和受累成牙本质细胞的数量进行诊断和分级。 ## 英文原文 · Comment Fluoride toxicity is the most well characterized cause of odontoblast degeneration ( Figure 1 and Figure 2 , arrows). Odontoblast degeneration is characterized by decreased amounts of cytoplasm, decreased cell numbers, disorganization of the epithelial cell layers and lack of nuclear polarity in cells. It may be focal or diffuse. Degeneration of the odontoblasts affects their ability to produce dentin and may result in focal to diffuse dentin hypoplasia or aplasia, which causes variations in the thickness of the dentin. Published reports of such effects in mice are uncommon. ## 英文原文 · Recommendation Odontoblast degeneration should be diagnosed and graded based on the degree of degeneration and the number of odontoblasts affected. ## 配图 - https://www.labsmart.cn/ntp-atlas-images/ntp_0205.jpg - https://www.labsmart.cn/ntp-atlas-images/ntp_0204.jpg 整理:北京天融慧通科技有限责任公司(LabSmart)| https://www.labsmart.cn