下颌第1恒磨牙牙冠后倾对深覆(牙合)矫治的影响
吕婴;刘素娟
The Analysis of Advantages and Disadvantages about the Distal Tipping of the Lower First Molor in the Treatment of Overbite
Lu Ying;Liu Sujuan
首都医科大学学报 . 1995, (2): 136 -138 .