The implant then performs a function similar to natural toothroots.
种植牙的功能和自己的真牙功能相同。
2
The algorithm and formulas to determine the size of tip relief modification of pre shaving gear hobs are put forward. A principle to determine the lead width of toothroots is also presented.
给出了剃前齿轮滚刀修缘尺寸的计算方法和计算公式,并对滚刀齿根的齿间槽宽提出了更为合理的判断原则。
3
He argues that tooth crowns and roots have a high genetic component, minimally affected by environmental and other factors.