Goret-Nicaise M
Rev Stomatol Chir Maxillofac. 1982;83(5):266-72.
In this histologic and microradiographic study of the mandibular symphysis of eleven newborns, we describe each of the tissues which constitute the mandibular symphysis. To make our observations, we have investigated consecutive sections (fig. 1) of the region. At birth, the mandibular symphysis is forged by several small nodules of calcified tissue, the ossicula mentalia, and by soft tissue invisible in the microradiographs. Therefore, it is necessary to examine first the same field at an identical magnification after methylene blue staining, and then the decalcified slides after coloration according to Masson's trichromic method. Between the two hemimandibles we have observed fibrous tissue and chondriola symphysea (fig. 4 and 5). Figures 2A, 2B and 3 shows secondary cartilage bordering the mandibular symphysis and later replaced with bone by endochondral ossification. In the ossicular mentalia (fig. 6 and 7), chondroid tissue (fig. 7 and 8) is interspersed with secondary cartilage and woven bone, as it is in the extremities of the hemimandibles.
在这项对11例新生儿下颌骨联合的组织学和显微放射学研究中，我们描述了构成下颌骨联合的每种组织。为了进行观察，我们研究了该区域的连续切片（图1）。出生时，下颌骨联合由几个钙化组织小结节即颏骨小骨以及显微放射照片中不可见的软组织构成。因此，有必要先在亚甲蓝染色后以相同放大倍数检查同一视野，然后再检查根据马松三色法染色后的脱钙切片。在两块半下颌骨之间，我们观察到了纤维组织和联合软骨（图4和图5）。图2A、2B和3显示了与下颌骨联合相邻的继发性软骨，随后通过软骨内成骨被骨替代。在颏骨小骨（图6和图7）中，类软骨组织（图7和图8）与继发性软骨和编织骨相间分布，就像在半下颌骨的末端一样。
