腭裂修复术对不同年龄患者上下颌牙弓关系影响的研究

目的 通过回顾性研究探讨接受腭裂修复术的年龄对患者上颌牙弓相对于下颌牙弓位置关系的影响. 方法 年龄>10岁、腭裂术后2年以上的单侧完全性唇腭裂患者103例,根据接受腭裂修复手术时的年龄分为3组,A组:≤3.0岁手术组(n=38)、B组:≤6.0岁手术组(n=36)和C组:>6.0岁手术组(n=29).用上下颌牙弓石膏模型,对其牙弓关系行Goslon Yardstick等级评价,并对不同手术年龄组间的Yardstick等级进行统计学检验. 结果 统计学检验显示Yardstick等级在A组与B组间差异无统计学意义(P>0.05),A组与C组间差异有统计学意义(P<0.05),B组与C组间差异无统计学意义(P>0.05). 结论 6.0岁以下行腭裂手术的两组患者的上颌牙弓相对于下颌牙弓的后缩程度无差异,6.0岁以上行腭裂手术患者的上颌牙弓相对后缩程度要明显小于3.0岁以下手术者,稍小于6.0岁以下手术者,上颌牙弓相对后缩程度随手术年龄的增大有减小的趋势.

Effect of palatoplasty timing on the dental arch relationships between upper and lower jaws

Objective To investigate the effect of different palatoplasty timing on the dental arch relationship between upper and lower jaws by a retrospective study. Methods A total of 103 UCLP consecutive cases over 10 years of age were followed up after operation,which were divided into three groups according to the age of operation, group A: ≤3.0 years old, group B: ≤6. 0 years old and group C: >6.0 years old above. Maxilla and mandible plaster casts were taken for each patient. Goslon Yardstick system was used for assessing the dental arch relationships between upper and lower jaws. Results Goslon Yardstick assessing results showed that there was no significant difference between group A and group B (P>0.05), there was significant difference between group C and group A (P<0.05), and C was no significant difference between group B and group C(P = 0. 095). Conclusions Six years old was a boundary line on considering the influence of cleft palate operation age on the maxillary development. The Yardstick mean value became smaller along with increase of operation age.