Conclusion : Cell proliferation and programmed cell death are interrelated and interact on each other in the development of teeth, and they both involve in sculpturing the shape of teeth.

• 结论 :牙齿发育过程中的细胞增殖与凋亡同时出现在生长中心部位，说明二者在牙齿发育中相互协调，共同控制牙齿的形态形成。