Statistical analysis of biomechanical properties of the adult skull and age-related structural changes by sex in a Japanese forensic sample

Torimitsu, Suguru; Nishida, Yoshifumi; Takano, Tsuyoshi; Koizumi, Yoshiko; Makino, Yohsuke; Yajima, Daisuke; Hayakawa, Motozo; Inokuchi, Go; Motomura, Ayumi; Chiba, Fumiko; Otsuka, Katsura; Kobayashi, Kazuhiro; Odo, Yuriko; Iwase, Hirotaro

doi:10.1016/j.forsciint.2013.10.001

Cited by 26 publications

(30 citation statements)

References 44 publications

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“…In contrast, our previous study demonstrated that the failure stress of parietal bones samples has a not significant but slight negative correlation with age for the male group (r = -0.059, p = 0.673), and the female group had a statistically significant negative correlation between the failure stress of parietal bone samples and age (r = -0.613, p < 0.001) [13]. The difference in the correlation of the bending strength with age between the sagittal suture and parietal bones may result from the progress of suture closure.…”

Section: Discussioncontrasting

confidence: 68%

“…Bending tests, which have been performed to determine the mechanical properties of various beam samples taken from layered structures including that of the human skull in previous studies [7,13,19,[31][32][33], were used with a three-point-bending apparatus (JSV-H1000, JISC, Nara, Japan) as depicted in Fig. 2.…”

Section: Bending Testsmentioning

confidence: 99%

“…It is therefore vital to have a sound understanding of the biomechanical properties of the skull to provide accurate estimates of these aspects of force. In previous studies, the mechanical properties of human cranial bones have been tested using a variety of methods, such as compression, tension, and bending tests [4][5][6][7][8][9][10][11][12][13]. However, few published reports have investigated the mechanical properties of cranial sutures [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Statistical analysis of biomechanical properties of the adult sagittal suture using a bending method in a Japanese forensic sample

Torimitsu¹,

Nishida²,

Takano³

et al. 2015

Forensic Science International

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Section: Discussioncontrasting

confidence: 68%

Section: Bending Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Statistical analysis of biomechanical properties of the adult sagittal suture using a bending method in a Japanese forensic sample

Torimitsu¹,

Nishida²,

Takano³

et al. 2015

Forensic Science International

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“…At the macroscopic level, bones can be divided into two types: the denser cortical bone and the porous cancellous bone. The cortical bone can be found in skull (Torimitsu et al, ), iliac crest (Castillo, Ubelaker, & Djorojevic, ), long bone extremities, and peripheral surroundings of cancellous bone. The Haversian canals, as shown in Figure1b, mainly contribute to the cortical bone with low porosity of 2.2–6.2%, which translates to a high density (Ostertag et al, ).…”

Section: Biology Of Bonesmentioning

confidence: 99%

Advances in osteobiologic materials for bone substitutes

Hasan

Byambaa

Morshed

et al. 2018

J Tissue Eng Regen Med

109

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A significant challenge in the current orthopedics is the development of suitable osteobiologic materials that can replace the conventional allografts, autografts, and xenografts and thereby serve as implant materials as bone substitutes for bone repair or remodelling. The complex biology behind the nanostructure and microstructure of bones and their repair mechanisms, which involve various types of chemical and biomechanical signalling amongst different cells, has set strong requirements for biomaterials to be used in bone tissue engineering. This review presents an overview of various types of osteobiologic materials to facilitate the formation of the functional bone tissue and healing of the bone, covering metallic, ceramic, polymeric, and cell-based graft substitutes, as well as some biomolecular strategies including stem cells, extracellular matrices, growth factors, and gene therapies. Advantages and disadvantages of each type, particularly from the perspective of osteoinductive and osteoconductive capabilities, are discussed. Although the numerous challenges of bone regeneration in tissue engineering and regenerative medicine are yet to be entirely addressed, further advancements in osteobiologic materials will pave the way towards engineering fully functional bone replacement grafts.

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“…Luo [13] constructs the statistical shape model, which requires manually cut away the back part of all the reference skulls. The preprocessing work is unwise, because the back part has a great contribution on sex identification according to the measurement indicators [6][7][8]14] and relevant researching documentation. Though measurement and statistical methods can achieve high accuracy, a large amount of tedious manual operation should be completed and the unpredictable errors cannot be eliminated on account of a large number of human interference.…”

Section: Introductionmentioning

confidence: 99%

Automatic Sex Identification Based on Convolution Neural Network and Least Square Method

Ren¹,

Zhou²,

Geng³

et al. 2017

dtcse

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Sex identification has great application value in the field of forensic science and facial reconstruction. In view of the problem that traditional methods are mainly depend on plenty of artificial intervention, we present a novel automatic sex identification method based on Convolution Neural Network and Least Square Method. Firstly, multiple images of each sample are captured on the three-dimensional digitized skulls. Secondly, the probability values of sample images can be assessed by the Convolution Neural Network. Finally, we achieve sex identification using the Least Square Method to weight the probability values of sample images. This method abandons tedious manual measurement, and is easy to be applied by researchers without professional qualification. We implement our algorithm on 90 skulls and the experiments show that the method performs better than the state-of-the-art sex identification methods. es.

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Statistical analysis of biomechanical properties of the adult skull and age-related structural changes by sex in a Japanese forensic sample

Cited by 26 publications

References 44 publications

Statistical analysis of biomechanical properties of the adult sagittal suture using a bending method in a Japanese forensic sample

Statistical analysis of biomechanical properties of the adult sagittal suture using a bending method in a Japanese forensic sample

Advances in osteobiologic materials for bone substitutes

Automatic Sex Identification Based on Convolution Neural Network and Least Square Method

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