【摘要】 目的探讨腭裂畸形本身及修复术对牙弓形态发育的影响。方法应用牙颌模型CT扫描测量系统,对比分析正常成人、单侧完全性唇腭裂(UCLP)均已修复组以及腭裂未修复组成人患者牙弓形态特征。结果腭裂术后组上颌牙弓各段宽度、牙弓前段长度均显著小于未手术组(P<0.01);未手术组上颌牙弓前段宽度、上下颌牙弓长度均显著小于正常组(P<0.01),而上下颌牙弓后段宽度大于正常组(P<0.001)。结论腭部裂隙对上颌牙弓发育的影响仅仅局限于牙弓前部裂隙邻近的区域,腭裂手术是造成上颌牙弓宽度缩窄的主要原因,同时也抑制了上颌牙弓前段长度发育。更多还原

【Abstract】 Objective To investigate the effects of cleft palate and palatoplasty on the development of dental-arch morphology. Methods CT scanning and imaging system for dental cast measurement was applied to analyze the differences in dental-arch morphology among 30 adults with normal occlusion, 30 adult patients with unilateral complete cleft lip and palate (UCLP) after palatoplasty and 30 patients without surgery. Results All the maxillary arch widths and anterior arch lengths in the surgical group were significantly smaller than those of the non-surgical group(P < 0.01). Compared with the control group, the widths of maxillary anterior arch, maxillary and mandibular posterior arch were all significantly smaller, while both maxillary and mandibular posterior arch widths were significantly larger in the non-surgical group (P < 0.01). Conclusions The influence of cleft palate on the maxillary arch development is limited to the region close to the cleft in the anterior arch. Palatoplasty was the main factor contributing to the constriction of maxillary arch, and meanwhile, the sagittal development of anterior arch was inhibited.更多还原