Investigation of micro-cracking behaviors of human femur cortical bone during radial fretting

Micromotion and fretting damages at the dental implant/bone interface are neglected for the limitation of check methods, but it is particularly important for the initial success of osseointegration and the life time of dental implant. This review article describes the scientific documentation of micromotion and fretting damages on the dental implant/bone interface. The fretting amplitude is less than 30 µm in vitro and the damage in the interface is acceptable. While in vivo, the micromotion's effect is the combination of damage in tissue level and the real biological reaction.

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“…When fretting amplitude falls in between 10 and 30 µm, the fretting is called tolerant fretting. 11,12,14,15,16,17,18 …”

Section: The Effect Of Fretting Mode On Implant/bone Interface In Vitromentioning

confidence: 99%

Micromotions and combined damages at the dental implant/bone interface

et al. 2012

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“…Partial slip regime presented central adhesion and margin micro-slip. However, the central adhesion was not the same as the center without damage, which is defined in previous studies [19][20][21]. This finding suggests that the center resulted in compaction without wear, and the T-θ curve was stably maintained without obvious change of torque or increase of ellipse area.…”

Section: Partial Slip Regimementioning

confidence: 58%

Comparison of the torsional fretting behavior of three porous titanium coatings for biomedical applications

Quan

Gao

Zhu

et al. 2015

Tribology International

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“…Hand-in-hand with the generation of experimental findings, mathematical and engineering techniques have been applied to carry out in depth data analysis. Models of secondary osteons and lamellae have been developed to reflect their multi-directional structures so as to investigate the functions of the elementary components when they are under different loading conditions (7,110,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167).…”

Section: Models and Simulationsmentioning

confidence: 99%

The osteon: the micromechanical unit of compact bone

Ascenzi

Roe²

2012

Front Biosci

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The research techniques available for investigation of secondary osteons in human bone enable establishment of their biological composition and quantification of their mechanical properties. Further, the data generated through current research techniques facilitate studies on the significance of osteons in normal and pathological conditions, including via multi-scale modeling conducted with a view of building realistic models of virtual bone, suitable for applications from orthopaedic challenges to endocrine disorders. The understanding of the biomechanical function of the osteon requires clarification of the molecular-cellular processes that form, maintain and remodel the osteon and affect the mechanical function. In turn, the mechanical function affects the biology of the osteon. In retrospective, the investigation of osteons has focused on the unraveling of the complex combination of elementary components to discern the major factors that define the mechanical behavior. The micro-structural environment that leads to macroscopic fracture remains unclear. Arrangement, distribution and quality of the elementary components may participate in fracture risk. The latest results underline the fundamental role of the orientation of collagen type I and of carbonated hydroxyapatite crystallites.

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Investigation of micro-cracking behaviors of human femur cortical bone during radial fretting

Cited by 8 publications

References 36 publications

Micromotions and combined damages at the dental implant/bone interface

Micromotions and combined damages at the dental implant/bone interface

Comparison of the torsional fretting behavior of three porous titanium coatings for biomedical applications

The osteon: the micromechanical unit of compact bone

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