A micromechanical elastic property study of trabecular bone in the human mandible
A micromechanical elastic property study of trabecular bone in the human mandible
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DOI：
10.1007/s10856-007-2312-6
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发表时间：
2007-04-01
影响因子：
3.7
通讯作者：
Saito, Chikara
中科院分区：
文献类型：
--
作者：
Nomura, Tsutomu;Katz, J. Lawrence;Saito, Chikara
研究了人下颌骨松质骨的微观力学特性，特别是对任何部位的差异。从一具66岁无骨病的女性尸体上采集下颌骨。将其嵌入PMMA中，切成2 mm的切片并抛光。使用UH 3扫描声学显微镜（SAM）（Olympus Co.，东京，日本）在400兆赫的突发模式。从右侧选择6个垂直切片，从左侧选择6个水平切片。在12个样本中的每一个中，测量3个点;首先在中心，另外2个来自边缘。采用SPSS（SPSS，Inc.）软件进行统计学分析。使用Student t检验。反射系数r的平均值为0.58 ± 0.079，范围为0.46 ~ 0.64; E = 25.0 ± 5.64 GPa。相关皮质骨的骨向性质与边缘区和中心区之间无显著差异。右侧r的平均值为0.60 +/- 0.07，在统计学上高于左侧r的平均值0.56 +/- 0.07。下颌骨松质骨和皮质骨的微观力学性能几乎相同。
Micromechanical properties of human mandibular trabecular bone, with particular interest to any site differences were investigated. A mandible was harvested from a 66 year-old female cadaver free from bone disease. It was embedded in PMMA, cut into 2mm sections and polished. Micromechanical property measurements were obtained using the UH3 Scanning Acoustic Microscope (SAM) (Olympus Co., Tokyo, Japan) at 400MHz in the burst mode. 6 vertical slices from the right and 6 horizontal slices from the left were chosen. In each of the 12 samples, 3 points were measured; first in the center, the other 2 from the margins. Data were analyzed statistically by SPSS (SPSS, Inc.) using Student's t-test. The average value of reflection coefficient r is 0.58 +/- 0.079 with the range from 0.46 to 0.64; E = 25.0 +/- 5.64 GPa. There is no significant difference in properties in the osteonal direction of related cortical bone and those found between the marginal area and center areas. The average value of r from the right side, 0.60 +/- 0.07, is statistically higher than the average value of from the left side, 0.56 +/- 0.07. Micromechanical properties of both mandibular trabecular and cortical bone have almost the same values.