Liao Yu-Fang, Cole Timothy J, Mars Michael
Department of Dentistry, Craniofacial Center, and Sleep Center, Chang Gung Memorial Hospital, Taipei, Taiwan.
Cleft Palate Craniofac J. 2006 Sep;43(5):547-56. doi: 10.1597/05-119.
To investigate whether timing of hard palate repair had a significant effect on facial growth in patients with unilateral cleft lip and palate (UCLP).
Retrospective longitudinal study.
Sri Lankan Cleft Lip and Palate Project.
A total of 104 patients with nonsyndromic UCLP who had hard palate repair by age 13 years, with their 290 cephalometric radiographs taken after lip and palate repair.
Clinical notes were used to record surgical treatment histories. Cephalometry was used to determine facial morphology and growth rate.
Timing of hard palate repair had a significant effect on the length and protrusion of the alveolar maxilla (PMP-A and SNA, respectively) and the anteroposterior alveolar jaw relation (ANB) at age 20 years but not on their growth rates.
Timing of hard palate repair significantly affects the growth of the maxilla in patients with UCLP. Late hard palate repair has a smaller adverse effect than does early hard palate repair on the growth of the maxilla. This timing effect primarily affects the anteroposterior development of the maxillary dentoalveolus and is attributed to the development being undisturbed before closure of the hard palate.
探讨硬腭修复时机对单侧唇腭裂（UCLP）患者面部生长是否有显著影响。
回顾性纵向研究。
斯里兰卡唇腭裂项目。
共有104例非综合征性UCLP患者，在13岁前接受了硬腭修复，并在唇腭裂修复后拍摄了290张头颅侧位片。
临床记录用于记录手术治疗史。头颅测量用于确定面部形态和生长速率。
硬腭修复时机对20岁时牙槽突上颌骨的长度和突出度（分别为PMP-A和SNA）以及牙槽颌骨前后关系（ANB）有显著影响，但对其生长速率无影响。
硬腭修复时机对UCLP患者上颌骨的生长有显著影响。晚期硬腭修复对上颌骨生长的不良影响小于早期硬腭修复。这种时机效应主要影响上颌牙牙槽突的前后发育，这归因于在硬腭闭合前发育未受干扰。
