Freng A, Voss R
Scand J Plast Reconstr Surg. 1982;16(3):225-31. doi: 10.3109/02844318209026211.
When two opposing layers of mucoperiosteum are used to cover experimental mid-palatal clefts in growing cats, bone bridges regularly form between the palatal halves. This results in significantly smaller transverse dimensions of the hard palate, in a hypoplastic maxillary base. The present investigation analysed the concurrent enlargement of the dental arches in such animals. Compared with un- and sham-operated controls, no significant divergencies could be found. The cat has a deep scissor bite. A reasonable interpretation of the findings might therefore be that mandibular dental arch growth is transmitted 'orthodontically' to the maxillary teeth, through the occlusion. In cleft lip and palate patients operated on with conventional methods, similar bone bridges are frequently found, but also a favourable effect of orthodontic treatment on co-existing dental malocclusions. To some extent the findings of the present study appear to coincide with those of the clinic. The results seem to indicate that adjustment of dental arch dimensions in disproportionate jaw bases may be due more to conductible compensatory dental arch growth than to forcibly induced movements of jaw segments.
当使用两层相对的粘骨膜覆盖生长中的猫的实验性腭裂时，腭的两半之间经常会形成骨桥。这会导致硬腭的横向尺寸显著变小，上颌基部发育不全。本研究分析了此类动物牙弓同时出现的扩大情况。与未手术和假手术对照组相比，未发现显著差异。猫有深覆咬合。因此，对这些发现的一个合理的解释可能是，下颌牙弓的生长通过咬合“正畸地”传递到上颌牙齿。在采用传统方法进行手术的唇腭裂患者中，经常会发现类似的骨桥，同时正畸治疗对并存的牙列错合也有良好效果。在某种程度上，本研究的结果似乎与临床结果一致。结果似乎表明，在不成比例的颌骨基部中，牙弓尺寸的调整可能更多地是由于可传导的代偿性牙弓生长，而不是由于颌骨节段的强制诱导运动。
