Smahel Z, Horák I
Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague.
Acta Chir Plast. 1993;35(3-4):165-72.
Roentgencephalometric study was used for the assessment of 16 adult males with unilateral cleft lip and palate and an osseous bridge and of 10 males with a soft tissue bridge. They were compared with 32 individuals with a complete cleft and with a control group of 50 normal males. All patients were operated upon and subsequently treated with the same methods. In contrast to the soft bridge, an osseous bridge prevents the reduction of upper face height, and an increased width of the nasal cavity. Both an osseous and a soft tissue bridge exert a favorable effect on the shortening and retrusion of the maxilla and thus also on the maxillo-mandibular relations and on facial configuration. The thickness of the upper lip is related to the presence of a soft bridge, while deviations of the lower jaw and the posterior position of the maxilla are not related to the presence of either type of bridge. Alveolar retroinclination was insignificantly smaller in the presence of both types of bridges. These differences disclosed that clefts with soft bridges cannot be pooled with complete clefts (or with clefts with osseous bridges), when there is not definite evidence of the same proportion of both forms of clefts in the series used for comparison.
采用X线头影测量法对16例单侧唇腭裂合并骨桥的成年男性和10例合并软组织桥的男性进行评估。将他们与32例完全性腭裂患者以及50例正常男性组成的对照组进行比较。所有患者均接受手术治疗，术后采用相同方法进行处理。与软组织桥不同，骨桥会阻止上颌面部高度的降低以及鼻腔宽度的增加。骨桥和软组织桥对上颌骨的缩短和后缩均产生有利影响，进而对颌骨关系和面部形态也有影响。上唇厚度与软组织桥的存在有关，而下颌偏斜和上颌后位与两种类型桥的存在均无关。两种类型的桥存在时，牙槽骨后倾程度均略有减小。这些差异表明，当用于比较的系列中没有明确证据表明两种腭裂形式比例相同时，合并软组织桥的腭裂不能与完全性腭裂（或合并骨桥的腭裂）归为一类。
