The tooth is anti-decomposed and anti-dissoluble because of the formation condition and palatebone protection.
牙齿由于形成条件的特殊性和颚骨的保护作用,因而具有很好的防腐性和抗降解性。
2
Since Hedrick's surgical practice focused on children with facial defects, he thought the cells could be coaxed to make bone in kids with a cleft palate.