Kolkata, India.
Unit-III, Department of Surgical Oncology, Chittaranjan National Cancer Institute, Kolkata, India.
J Stomatol Oral Maxillofac Surg. 2018 Dec;119(6):482-485. doi: 10.1016/j.jormas.2018.05.005. Epub 2018 May 21.
Sella turcica, the bony depression located in sphenoid bone houses and protects the pituitary gland. Formation and development of the sella turcica and teeth share, in common, the involvement of neural crest cells. The anterior part of the sella turcica is believed to develop mainly from neural crest cells, and dental epithelial progenitor cells differentiate through sequential and reciprocal interaction with neural crest-derived mesenchyme. Thus, any structural deviations in the sella, like bridging or roofing, are believed to be related to specific deviations in the facial skeleton and dental anomalies. Until now, there have been no studies concerning the prevalence of sella turcica bridging in skeletal Class II subjects.
The aim of this study was to analyse the prevalence of sella turcica bridging in subjects with class I and class II skeletal types and to check whether sella can be considered as diagnostic marker for skeletal class II malocclusion.
Lateral cephalometric images of 205 subjects in the age range of 13 to 25 years were retrospectively analysed and classified for the type of skeletal malocclusion and the radiographs were evaluated for the prevalence of bridging of the sella in these subjects.
The results show significance in the prevalence of sella turcica bridging (partial/complete) among subjects with skeletal class II malocclusion.
蝶鞍位于蝶骨内的骨质凹陷处，保护着垂体。蝶鞍的形成和发育与神经嵴细胞有关，牙齿也一样。蝶鞍的前部分被认为主要由神经嵴细胞发育而来，而牙上皮祖细胞通过与神经嵴衍生的间质的顺序和相互作用分化。因此，蝶鞍的任何结构偏差，如桥接或覆盖，都被认为与面骨的特定偏差和牙齿异常有关。到目前为止，还没有关于骨骼 II 类患者蝶鞍桥接发生率的研究。
本研究旨在分析 I 类和 II 类骨骼类型患者蝶鞍桥接的发生率，并检查蝶鞍是否可以作为骨骼 II 类错牙合的诊断标志物。
回顾性分析了 205 名年龄在 13 至 25 岁之间的患者的侧颅面影像，并对其骨骼错牙合类型进行分类，并对这些患者的蝶鞍桥接发生率进行评估。
结果表明，骨骼 II 类错牙合患者的蝶鞍桥接（部分/完全）发生率存在显著差异。
