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Objectives
The mechanisms of regional acceleratory phenomenon (RAP) induced by orthognathic osteotomy are unclear. It was not known if locally hypoxic microenvironment changes were involved in this phenomenon.
Methods
Hypoxia‐induced factor‐1α knockout mice harboring Cathepsin K (CTSK) Cre were used to investigate the effect of hypoxia‐driven osteoclasts on alveolar bone remodeling. RAW264.7 cells...
Objectives
Hypoxia is one of the characteristics of microenvironmental changes after orthognathic surgery for fractures. HIF‐1α is a main regulator of the hypoxic response and plays a crucial role in bone formation, remodelling, and homeostasis. Osteoclasts participate in bone absorption and affect osteogenesis, and osteoclasts differentiate in a path from the oxygen‐rich bone marrow to oxygen‐deficient...
The extrinsic calibration for robotic systems with structured light sensor is fundamental to accomplish the tasks of 3D measurement, reverse engineering and quality inspection. In this paper, we proposed a cuboid calibration target with nicks on the surfaces which is easy to extract the control points. In the calibration process, both least square method and the nonlinear optimization based on maximum...
A novel algorithm to find line segments is proposed from the sequence of points taken by a laser scan, which consists of over segmentation, undirected graph generation and line segments extraction. Firstly, the self-adaptive IEPF method is used to over segment raw points into sub-groups. Secondly, the undirected graph is generated based on merge probability function of sub-groups. Thirdly, according...
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