dimensional control
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Author(s):  
Zhi Li ◽  
Philip W. Nega ◽  
Mansoor Ani Najeeb Nellikkal ◽  
Chaochao Dun ◽  
Matthias Zeller ◽  
...  

2022 ◽  
pp. 030157422110607
Author(s):  
Arun Kumar Dasari ◽  
Madhukar Reddy Rachala ◽  
Kaladhar Reddy Aileni

Orthodontic management of ectopic canines is quite challenging and time consuming due to the presence of thin buccal cortical bone. Sectional mechanics provide distal and extrusive force on canine but without any torque control. So, palatal root torquing during canine retraction is needed to increase the buccal cortical bone thickness and to avoid bone dehiscence and gingival recession. This article describes an innovative spring which provides 3-dimensional control by simultaneous retraction, extrusion, and torquing of ectopic canine.


2022 ◽  
Vol 105 (3) ◽  
Author(s):  
T. Kamppinen ◽  
J. T. Mäkinen ◽  
V. B. Eltsov

2022 ◽  
pp. 260-279
Author(s):  
Stephen B. Baker ◽  
Jeffrey Weinzweig
Keyword(s):  

2022 ◽  
Vol 29 (1) ◽  
pp. 012301
Author(s):  
Jianji Wang ◽  
Yajun Guo ◽  
Xiaowei Song ◽  
Kaimin Guo ◽  
Jingquan Lin

2022 ◽  
Vol 133 ◽  
pp. 103998
Author(s):  
Mohammad Mahdi Sharif ◽  
Carl Haas ◽  
Scott Walbridge

2021 ◽  
Author(s):  
Yijie Shen

Abstract Structured light refers to the ability to tailor optical patterns in all its degrees of freedom, from conventional 2D transverse patterns to exotic forms of 3D,4D, and even higher-dimensional modes of light, which break fundamental paradigms and open new and exciting applications for both classical and quantum scenarios. The description of diverse degrees of freedom of light can be based on different interpretations, e.g. rays, waves, and quantum states, that are based on different assumptions and approximations. In particular, recent advances highlighted the exploiting of geometric transformation under general symmetry to reveal the "hidden" degrees of freedom of light, allowing access to higher dimensional control of light. In this tutorial, I outline the basics of symmetry and geometry to describe light, starting from the basic mathematics and physics of SU(2) symmetry group, and then to the generation of complex states of light, leading to a deeper understanding of structured light with connections between rays and waves, quantum and classical. The recent explosion of related applications are reviewed, including advances in multi-particle optical tweezing, novel forms of topological photonics, high-capacity classical and quantum communications, and many others, that, finally, outline what the future might hold for this rapidly evolving field.


Author(s):  
Fabio Annarumma ◽  
Martina D’Emidio ◽  
Giuseppe Rodi ◽  
Gianni Battista ◽  
Giulia Papi ◽  
...  

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