英语翻译The cephalometric parameters,andtreatment and demographic details collected are shownin Table I.Six distinct extraction patterns were identifiedin the sample:a nonextraction group,4 differentpremolar extraction groups,and a group in which

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英语翻译The cephalometric parameters,andtreatment and demographic details collected are shownin Table I.Six distinct extraction patterns were identifiedin the sample:a nonextraction group,4 differentpremolar extraction groups,and a group in which
英语翻译
The cephalometric parameters,and
treatment and demographic details collected are shown
in Table I.Six distinct extraction patterns were identified
in the sample:a nonextraction group,4 different
premolar extraction groups,and a group in which the
extraction pattern included at least 1 first molar.

英语翻译The cephalometric parameters,andtreatment and demographic details collected are shownin Table I.Six distinct extraction patterns were identifiedin the sample:a nonextraction group,4 differentpremolar extraction groups,and a group in which
头骨上的观察对象,观察方法及样本的情况,详见表1.
按照是否拔牙及拔不同的牙,样本共分6组.有1组不拔.有4组分别拔不同的小臼齿.另外一组中至少要拔一个第一臼齿.