dentin hypocalcification

例句：

1. 1. The patient's x-ray showed signs of Dentin Hypocalcification.
   患者的X光显示有牙本质脱钙的迹象。
2. 2. The dentist recommended a special toothpaste for this condition.
   牙医推荐了一种专门治疗这种状况的特殊牙膏。
3. 3.The child's teeth were developing normally until the age of three, when he developed Dentin Hypocalcification.
   这个孩子在三岁之前牙齿正常发育，但到了三岁时出现了牙本质脱钙。