Computational biomechanical modelling of the rabbit cranium during mastication.
Computational biomechanical modelling of the rabbit cranium during mastication.
复制标题
兔颅骨在咀嚼过程中的计算生物力学模型。
DOI：
10.1038/s41598-021-92558-5
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发表时间：
2021-06-23
影响因子：
4.6
通讯作者：
Gröning F
中科院分区：
文献类型：
--
作者：
Watson PJ;Sharp AC;Choudhary T;Fagan MJ;Dutel H;Evans SE;Gröning F
尽管在兔颅骨的某些区域已经显示出骨结构与咀嚼之间的功能关系，但整个头盖骨在咀嚼过程中的生物力学还没有得到充分的研究。在颅骨生物力学方面，兔是一个特别有趣的物种，因为它独特的开窗嘴，其机械功能存在争议。此外，兔子在一个咬合周期内通过门牙和磨牙咬合来处理食物，这些咬合模式对头骨生物力学的潜在影响尚不清楚。这项研究结合了多体动力学和有限元分析的计算机方法来计算与一系列切牙和磨牙咬合相关的肌肉骨骼力，并预测相关的应变。结果表明，大多数头盖骨，包括有窗的嘴，传递咀嚼应变。所有咬合产生的峰值应变都被发现归因于门牙和磨牙咬合。这可能是头骨形状调整的结果，以促进不频繁的门牙咬合和周期性磨牙咬合的组合的均匀应变分布。然而，某些区域，如眶上突，在所有考虑的咀嚼载荷下都经历了低峰值应变，这表明这些区域不是为抵抗咀嚼力而设计的。
Although a functional relationship between bone structure and mastication has been shown in some regions of the rabbit skull, the biomechanics of the whole cranium during mastication have yet to be fully explored. In terms of cranial biomechanics, the rabbit is a particularly interesting species due to its uniquely fenestrated rostrum, the mechanical function of which is debated. In addition, the rabbit processes food through incisor and molar biting within a single bite cycle, and the potential influence of these bite modes on skull biomechanics remains unknown. This study combined the in silico methods of multi-body dynamics and finite element analysis to compute musculoskeletal forces associated with a range of incisor and molar biting, and to predict the associated strains. The results show that the majority of the cranium, including the fenestrated rostrum, transmits masticatory strains. The peak strains generated over all bites were found to be attributed to both incisor and molar biting. This could be a consequence of a skull shape adapted to promote an even strain distribution for a combination of infrequent incisor bites and cyclic molar bites. However, some regions, such as the supraorbital process, experienced low peak strain for all masticatory loads considered, suggesting such regions are not designed to resist masticatory forces.
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DOI：
10.1242/jeb.234831
发表时间：
2021-03-11
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Dutel H;Gröning F;Sharp AC;Watson PJ;Herrel A;Ross CF;Jones MEH;Evans SE;Fagan MJ
通讯作者：
Fagan MJ
DOI：
10.1002/ar.21358
发表时间：
2011-04-01
影响因子：
2
作者：
Bright, Jen A.;Rayfield, Emily J.
通讯作者：
Rayfield, Emily J.
影响因子：
--
作者：
FROST, HM
通讯作者：
FROST, HM
影响因子：
--
作者：
DUBRUL, EL
通讯作者：
DUBRUL, EL
影响因子：
2.4
作者：
Groening, F.;Fagan, M. J.;O'Higgins, P.
通讯作者：
O'Higgins, P.