Sex and age differences in bone morphology of mandibles.
Sex and age differences in bone morphology of mandibles.
复制标题
下颌骨骨形态的性别和年龄差异。
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
K. Stoltze
中科院分区：
文献类型：
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作者：
N. Wowern;K. Stoltze
对下颌标本进行了组织形态计量学分析，以证明下颌骨骨量百分比和骨活性可能存在性别和年龄差异。该材料由 32 份尸检标本组成，这些标本取自突发意外死亡且无已知骨病的受试者的下颌体右侧前磨牙区域。受试者分为年轻组（20--43岁）和老年组（60--90岁）；每组由八名女性和八名男性组成。使用 100 微米的颊舌研磨切片的显微放射照片。通过电子点计数对(1)皮质骨和小梁骨的骨面积百分比以及(2)骨小梁中的总骨表面/骨面积和吸收表面/总骨表面进行定量。分析并未揭示骨小梁在骨量百分比、小梁粗糙度和骨活性方面存在任何显着的性别或年龄差异。颊侧和舌侧皮质存在显着的年龄差异，但全骨量没有性别差异。下颌骨的皮质孔隙度随着年龄的增长而明显增加，但似乎与性别无关。
Histomorphometric analysis of mandibular specimens has been performed in order to demonstrate possible sex and age differences in percent bone mass and bone activity in the mandible. The material consisted of 32 autopsy specimens from the right premolar region of the mandibular body in subjects with sudden unexpected death and without known bone disease. The subjects were divided in a young group (20--43 years of age) and an old group (60--90 years of age); each group consisted of eight females and eight males. Microradiograms of buccolingual ground sections of 100 micron were used. Quantitation of (1) percent bone area of cortical and trabecular bone and (2) total bone surface/bone area and resorption surfaces/total bone surface in trabecular bone, were done by electronic point-counting. The analysis did not reveal any significant sex or age differences in the trabecular bone with respect to percent bone mass, trabecular coarseness and bone activity. In the buccal and lingual cortices a significant age difference was demonstrated, but there was no sex difference in percnet bone mass. Cortical porosity in mandibles clearly increases with increasing age, but seems to be independent of sex.