非综合征型单侧完全性唇腭裂患者牙弓形态学特点

目的 通过对上颌牙弓进行测量,了解非综合征型单侧完全性唇腭裂患者上颌牙弓的形态学特点,为临床评价牙弓发育、咬关系提供参考,为临床咬诱导治疗提供依据.方法 使用丹麦3Shape公司牙科模型扫描仪及应用软件,对32副非综合征型单侧完全性唇腭裂患者上颌牙弓的模型(分非裂侧和裂侧)进行扫描和数据测量,内容包括牙弓各段的宽度、长度、非裂侧和裂侧牙弓周长.使用SPSS14.0统计软件对裂侧和非裂侧牙弓测量值进行配对t检验.结果 双尖牙区,裂侧与非裂侧的宽度差异有统计学意义(第1双尖牙区t=5.19,P<0.01;第2双尖牙区t=3.24,P<0.05).第1恒磨牙区,裂侧与非裂侧的宽度差异无统计学意义(t=0.48,P>0.05).患者非裂侧比裂侧牙弓实际周长长约4.2mm,差异有统计学意义(t=4.61,P<0.01).结论 对于非综合征型单侧完全性唇腭裂患者,上颌牙弓在裂隙侧宽度明显发育不足,牙弓周长明显小于非裂侧.

Arch morphology of non-syndromic complete unilateral cleft lip and palate patients

Objective To study morphology of the maxilary arch of the patients with non-syndromic complete unilateral cleft lip and palate in order to help assessment of clinical development of arch, occlusion and occlusal guidance therapy. Methods BR>This study included maxillary models of 32 non-syndromic complete unilateral cleft lip and palate patients. The models were scanned and measured by Denmark 3Shape Dental Model scanner and software. Length, width and circumference of both noncleft and cleft sides were measured. Spss14.0 was used to analyze the results with paired samples statistics. Results In the premolar area, there was statistical significance between width of noncleft and cleft side (first premolar areaEM> t/EM> =5.19, EM>P/EM> <0.01；second premolar area EM>t /EM>=3.24, EM>P /EM><0.05). In the first permanent molar area, there was no statistical significance between width of noncleft and cleft sides (EM> t/EM> =0.48, EM>P/EM> >0.05). The circumferences of noncleft side was longer than cleft side and the difference was 4.2 mm, which was statistically significant.( EM> t/EM> =4.611, EM>P /EM><0.01). There was statistical significance between them. Conclusion In non-syndromic complete unilateral cleft lip and palate patients, the cleft sides of maxillary arch are significantly under-developed. The circumference of cleft sides is less than n