Histological and radiographic study of the spheno‐occipital synchondrosis in cynomolgus monkeys, Macaque Irus
Histological and radiographic study of the spheno‐occipital synchondrosis in cynomolgus monkeys, Macaque Irus
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食蟹猴蝶枕骨联合软骨病的组织学和放射学研究
DOI：
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发表时间：
1972
期刊：
影响因子：
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通讯作者：
M. Harkness
中科院分区：
文献类型：
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作者：
D. Adams;M. Harkness
对20只食蟹猴的蝶枕软骨结合进行了组织学和X线检查。将这两种方法的结果进行了比较，并与猴的牙龄相关联。对分离的斜坡区域进行放射学检查，同时使用连续切片进行组织学检查。比较两种方法对软骨结合的分类，在开放、部分闭合和闭合的分类上有6处不同。有人认为，这种困难是由于重叠的阴影在X线片和小程度的组织愈合不被识别的X线片。进一步建议，当仅使用X线片作为标准时，在确定闭合时的年龄时应小心。初闭时的牙龄似乎差异很大，在某些情况下发生在早期混合牙列阶段，在其他情况下，晚至青少年牙列。软骨结合的闭合与任何特定牙齿的萌出时间无关。闭合模式不符合经典类型，即，从上到下，在射线照片或组织学切片中也没有发现任何一致的模式。
The spheno‐occipital synchondroses of 20 cynomolgus monkeys have been examined histologically and radiographically. The findings by these two methods have been compared and correlated with the dental age of the monkeys. The radiographic examination was carried out on the isolated clivus region while serial sections were used for histological examination. Comparison of the synchondrosis by the two methods resulted in six disagreements when the synchondroses were classified as open, partly closed or closed. It is suggested that this difficulty is due to superimposition of shadows on the radiographs and small degrees of histological union not being recognised radiographically. It is further suggested that care should be taken in determining the age at closure when radiographs alone are used as the criterion. The dental age at initial closure appeared to vary widely in some cases occurring at an early mixed dentition stage and in others as late as the adolescent dentition. The closure of the synchondrosis was not related to the eruption time of any particular tooth. The pattern of closure did not conform to the classical type, i.e., from above downwards nor indeed was any consistent pattern revealed in either the radiographs or histological sections.