If food or drinks are taken too frequently , our saliva does not have sufficient time to re - mineralize the tooth enamel , thus allowing the decay process to begin 如果吃喝太过频繁，唾液没有足够的时间为牙釉质补充矿物质，蛀牙就会发生。
Conclusion : the lesion properties of human severely fluorosed enamel from xianfeng county and tanggu area are the same , but the lesion severity is different 结论：咸丰县和塘沽区相同年龄段重度氟斑牙釉质虽然病变程度不同，但病变性质是相同的。
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。
After growing them , they found their structures had matured into the components that make teeth , including dentin , enamel , dental pulp , blood vessels , and periodontal ligaments 经一段时间的生长，他们发现在结构上它们已形成包括牙本质，牙釉质，牙髓，血管，牙周膜的牙组织的各个组分。
After growing them , they found their structures had matured into the components that make teeth , including dentin , enamel , dental pulp , blood essels , and periodontal ligaments 这些细胞长成后，研究人员发现它们的结构已经分化成熟为各种成分并形成了牙本质、釉质、牙髓、血管及牙周韧带。
To obtain a heterogeneous random mixture of dental enamel epithelial and pulp mesenchymal cells , the pig teeth were broken into tiny pieces and then further dissolved using enzymes 为了取得各种随机混合的牙釉质上皮细胞与牙髓间质细胞，他们将猪的牙齿裂解成微小碎片，然后再利用酵素加以解离。
Diet plays an important role in oral health . nutrition influences the craniofacial development and dental diseases including dental caries decayed teeth , enamel defects , dental erosion and periodontal disease 营养状况影响颅面部的发育和牙疾病的发生，这里说的牙疾病包括蛀牙，釉质缺损，酸蚀症和牙周病。
Your dentist may recommend regular fluoride treatments to strengthen enamel and resist decay . whenever possible , drink fluoridated water and always use an ada - accepted fluoridated toothpaste 你的牙医会推荐正规的氟化物治疗方案用以强健牙齿的釉质来抵御牙齿被龋坏。在尽可能时要喝含氟适量的水以及坚持使用含氟牙膏刷牙。
Results : the lesions of human fluorosed enamel from both areas had properties of hypomineralization , but the severity of human fluorosed enamel from xianfeng county was higher than that from tanggu area 结果：咸丰县和塘沽区的氟斑牙釉质在结构上都显示出了矿化不良的结构特点，但是咸丰县氟斑牙釉质矿化不良的程度比塘沽区的更大。
