crown root ratio meaning in Chinese
冠根比例
Examples
- When designing a definitive prosthesis for these patients , factors such as the prognosis of the abutment teeth , distribution of the abutment , periodontal attachment levels , crown root ratio and the requirements of splinting must be taken into consideration
当这类患者要进入最后阶段之最终补缀治疗前,牙周疾病必须是经过牙周病专家确实控制下,并经试带一段时间之良好暂用修种体后才能开始制作。