患者,女,14岁,左侧完全性唇腭裂。唇腭裂已修复。未作齿槽植骨,左侧鼻翼塌陷,唇部瘢痕较大。磨牙基本中性, https://assets.asklib.com/images/image2/201704131501449160.gif 反 https://assets.asklib.com/images/image2/2017041315010297151.gif 二期唇修整应在()