Lutz H D, Poulton D R
Angle Orthod. 1985 Oct;55(4):299-315. doi: 10.1043/0003-3219(1985)055<0299:SODAEI>2.0.CO;2.
Thirteen patients with deciduous dentition and more than 3mm intercuspid arch length deficiency are expanded and followed, with controls, for 6 years. Arch perimeter and width at permanent cuspids and bicuspids appear to be slightly greater, and lower incisors are positioned somewhat more forward on the mandible.
对13名乳牙列且尖牙间牙弓长度不足超过3毫米的患者进行扩弓并随访6年，同时设有对照组。恒牙尖牙和前磨牙处的牙弓周长和宽度似乎略大，下颌下切牙的位置也略向前移。
