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- Objective: To describe and compare the structure characteristics of enamel in human severely fluorotic teeth from water-drinking endemic fluorosis area and coal-burning endemic fluorosis area. 摘要目的：描述并比较燃煤污染型和饮水型氟中毒地区重度氟斑牙釉质结构特点。
- Keywords fluorotic teeth;composited acid;ultrastructure;etching; 氟斑牙;组合酸;超微结构;酸蚀;
- Methods 170 fluorosis teeth of different degree of stains were treated with self-made decolorizing serial preparation. 方法用自行研制的氟斑牙脱色系列制剂，对170颗着色程度不同的氟斑牙进行治疗。
- Keywords fluorotic teeth;bracket;composite resins;losing ratio of bracket; 关键词氟斑牙;托槽;复合树脂类;托槽脱落率;
- We should brush our teeth at least twice a day. 我们每天应该至少刷两次牙。
- The combined fleet is armed to the teeth. 这支联合舰队全副武装。
- He clenched his teeth and refused to tell anything. 他咬紧牙关，什么也不肯说。
- How many teeth did the dentist take out? 牙科医生给患者拔了几颗牙？
- I pick up a leaflet about the care of teeth. 我拿起一张宣传保护牙齿的传单。
- The dentist used amalgam to fill my teeth. 牙医用汞合金给我补牙。
- The dentist was cleaning and taking out teeth. 牙科医生正在清洁和拔牙。
- The lemon juice set his teeth on edge. 柠檬汁把他的牙齿都酸倒了。
- He ground his teeth (together) in frustration. 他因失败而把牙咬得咯咯响。
- I was given gas when they pulled my tooth out. 给我拔牙时用了一氧化二氮。
- He kept his pipe clamped between his teeth. 他一直叼著烟斗。
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- This tooth is sensitive to cold. 这颗牙对冷过敏。
- Mike's wife have a big sweet tooth. 迈克的妻子非常喜欢吃甜食。
- He had a bad tooth pulled out yesterday. 昨天他把蛀牙给拔掉了。
- I was fitted an artificial tooth by the dentist. 牙医给我镶了颗假牙。
