Northway W M, Wainright R L, Demirjian A
Angle Orthod. 1984 Oct;54(4):295-329. doi: 10.1043/0003-3219(1984)054<0295:EOPLOD>2.0.CO;2.
A statistical exploration of space changes following early loss of deciduous molars, developing a picture of closure from both directions with district differences between upper and lower arch changes.
对乳牙早期缺失后的空间变化进行统计探索,描绘出从两个方向闭合的情况以及上下牙弓变化的区域差异。