Trotman C A, Collett A R, McNamara J A, Cohen S R
Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor 48109-1078.
Angle Orthod. 1993 Summer;63(2):135-9. doi: 10.1043/0003-3219(1993)063<0135:AOCADM>2.0.CO;2.
The Michigan Cleft Twin Sample data was analyzed in order to investigate dental arch and craniofacial morphology. The present study consisted of 12 monozygotic twins discordant for either cleft lip or unilateral cleft lip and palate. Individuals having CL (repaired) alone did not differ from their unaffected counterparts in dental arch and skeletal morphology. Repaired UCLP subjects were characterized by having a shorter and more posteriorly positioned maxilla. Although reduction of dental arch width as a result of scar contraction following surgery was evident, the effects of scar tissue pull did not affect maxillary basal width.
为了研究牙弓和颅面形态，对密歇根唇裂双生子样本数据进行了分析。本研究包括12对单卵双胞胎，他们中有的患唇裂，有的患单侧唇腭裂。仅患有唇裂（已修复）的个体在牙弓和骨骼形态上与未受影响的双胞胎没有差异。单侧唇腭裂修复后的受试者的特征是上颌骨较短且位置更靠后。虽然手术后瘢痕收缩导致牙弓宽度减小是明显的，但瘢痕组织牵拉的影响并未影响上颌基部宽度。
