Laspos C P, Kyrkanides S, Tallents R H, Moss M E, Subtelny J D
Department of Orthodontics and TMD, Eastman Dental Center, Rochester, New York, USA.
Cleft Palate Craniofac J. 1997 Sep;34(5):410-6. doi: 10.1597/1545-1569_1997_034_0410_mainau_2.3.co_2.
The purpose of this study was to retrospectively investigate mandibular asymmetry in unilateral cleft lip and palate individuals (UCLP) in relation to chronologic age and in relation to lower facial asymmetry.
The longitudinal records of 34 UCLP individuals and 142 controls treated in the Department of Orthodontics, Eastman Dental Center, Rochester, NY, were included in the study. Posteroanterior and oblique cephalometric radiographs were analyzed for lower facial asymmetry and mandibular asymmetry, respectively. Mandibular asymmetry in UCLP was analyzed relative to three age groups (6-10, 11-14, and 15 or greater) and compared to controls. Moreover, mandibular asymmetry was analyzed relative to lower facial asymmetry.
UCLP individuals showed no significant differences in mandibular asymmetry compared to controls. In addition, no significant correlation was found between mandibular asymmetry and lower facial asymmetry in UCLP.
The degree of mandibular asymmetry in UCLP appears not to be the major contributing factor to the lower facial asymmetry noted on these individuals. Possible cranial-base/temporal-region anomalies may be involved in unilateral cleft lip and palate and be responsible of the asymmetry noted in the lower facial skeleton.
本研究的目的是回顾性调查单侧唇腭裂患者（UCLP）下颌骨不对称与年龄以及与面下部不对称的关系。
纳入了在纽约罗切斯特伊士曼牙科中心正畸科接受治疗的34例UCLP患者和142例对照的纵向记录。分别分析后前位和斜位头影测量片以评估面下部不对称和下颌骨不对称。分析UCLP患者下颌骨不对称与三个年龄组（6 - 10岁、11 - 14岁和15岁及以上）的关系，并与对照组进行比较。此外，分析下颌骨不对称与面下部不对称的关系。
与对照组相比，UCLP患者下颌骨不对称无显著差异。此外，UCLP患者下颌骨不对称与面下部不对称之间未发现显著相关性。
UCLP患者下颌骨不对称程度似乎不是这些患者面下部不对称的主要促成因素。单侧唇腭裂可能涉及颅底/颞区异常，并导致面下部骨骼出现不对称。
