Objective To observe the clinic result in reconstruction of massive lower lip defect using lateral upper lip tissue flap.
目的：探求上唇外侧组织瓣在修复较大面积下唇缺损中的作用。
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The results are as follow: 1. In the unilateral complete cleft lip, superior labial artery runs along the labial margin and cleft edge, ending in base of nasal wing on the lateral side.