COMPARISONS OF THE FACTORS RELATED TO THE GROWTH OF NASOPHARYNGEAL STRUCTURES BETWEEN NON-CLEFT CONTROLS AND PATIENTS WITH CLEFT FROM CHILDHOOD TO MATURITY

本研究旨在明确82例非唇裂组(NCC组)和80例单侧完全性唇腭裂(UCLP组)患者的鼻咽结构。这些受试者被分配到四个发育阶段(即大约4岁，阶段2：大约8岁，阶段3：大约12岁，阶段4：大约17岁)。数据基于头颅侧位X线片。对鼻咽结构的各种解剖参考点和参考线的测量结果进行了分析。结果如下：1)NCC组和UCLP组的颅底(HO、BA)和颈椎(At、CV2、Cv3)的前后径、垂直径和线径的组间比较显示，在各个时期，NCC组和UCLP组的各维度均无显著差异。2)两组上颌骨前后径和垂直径的组间比较显示，UCLP组的各维度和各阶段的维度生长均显著小于UCLP组。3)鼻咽结构生长的显著抑制表现在颈椎和上颌后的垂直维度。

The purpose of the present investigation was to clarify the nasopharyngeal structures on 82 non-cleft controls (NCC group) and 80 patients with complete unilateral cleft lip and palate (UCLP group). These subjects were assigned to four developmental stages (i.e.at about 4 years, stage 2 : at about 8 years, stage 3 : at about 12 years, stage 4 : at about 17 years of age). Data were based on lateral X-ray cephalograms. Dimensional measurements derived from various anatomic reference points and lines of the nasopharyngeal structures were analyzed. The results obtained were as follows :1) The intergroup conparisons for antero-postrior, vertical and linear dimensions on the cranial base (Ho, Ba) and cervical vertebra (At, CV2, CV3) between NCC and UCLP groups showed that there were no significant differe-nces at any dimensions at each stage.2) The intergroup comparisons for antero-posterior and vertical dimensions on the maxilla (ANS,PMP) between the two groups showed that dimensional growth of UCLP group were significantly less at each dimensions and at each stage.3) Remarkable growth inhibition of the nasopharyngeal structures was characteristic in the vertical dimension at cervical vertebrae and at posterior maxilla.