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Journal articles on the topic '3D Printed Bracket'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Rattanasumawong, Sopit, Peerapong Santiwong, Somchart Raocharernporn, and Syrina Tantidhnazet. "Accuracy of Three Bracket Transfer Media for Indirect Bonding Techniques (IDB) Fabricated by Three-Dimensional Printing." Applied Mechanics and Materials 897 (April 2020): 179–84. http://dx.doi.org/10.4028/www.scientific.net/amm.897.179.

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To evaluate and compare the accuracy of bracket placement in three bracket transfer media techniques for indirect bonding. A total of 300 brackets were bonded on dental casts by indirect bonding techniques using three different bracket transfer media. The bracket positions were simulated by digital software. In the first two methods, digital models were designed with two types of markers, one with fully mocked up bracket (container method), and another with only marked bracket margins (marker method), then the models were printed out by a three-dimensional (3D) printer using pink resin and bra

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Duarte, Maria Eduarda Assad, Bruno Frazão Gribel, Alice Spitz, Flavia Artese, and José Augusto Mendes Miguel. "Reproducibility of Digital Indirect Bonding Technique Using Three-dimensional (3d) Models and 3d-printed Transfer Trays." Angle Orthodontist 90, no. 1 (2019): 92–99. http://dx.doi.org/10.2319/030919-176.1.

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ABSTRACT Objective To evaluate the reproducibility of digital tray transfer fit on digital indirect bonding by analyzing the differences in bracket positions. Materials and Methods Digital indirect bonding was performed by positioning brackets on digital models superimposed by tomography using Ortho Analyzer (3Shape) software. Thirty-three orthodontists performed indirect bonding on prototyped models of the same malocclusion using prototyped transfer trays for two types of brackets (MiniSprint Roth and BioQuick self-ligating). The models with brackets were scanned using an intraoral scanner (T

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Süpple, Julia, Julius von Glasenapp, Eva Hofmann, Paul-Georg Jost-Brinkmann, and Petra Julia Koch. "Accurate Bracket Placement with an Indirect Bonding Method Using Digitally Designed Transfer Models Printed in Different Orientations—An In Vitro Study." Journal of Clinical Medicine 10, no. 9 (2021): 2002. http://dx.doi.org/10.3390/jcm10092002.

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Objective: A digital workflow opens up new possibilities for the indirect bonding (IDB) of brackets. We tested if the printing orientation for bracket transfer models on the build platform of a 3D printer influences the accuracy of the following IDB method. We also evaluated the clinical acceptability of the IDB method combining digitally planned and printed transfer models with the conventional fabrication of pressure-molded transfer trays. Materials and Methods: In total, 27 digitally planned bracket transfer models were printed with both 15° and 75° angulation from horizontal plane on the b

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Niu, Ye, Yunting Zeng, Zeyu Zhang, Wanghan Xu, and Liwei Xiao. "Comparison of the transfer accuracy of two digital indirect bonding trays for labial bracket bonding." Angle Orthodontist 91, no. 1 (2020): 67–73. http://dx.doi.org/10.2319/013120-70.1.

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ABSTRACT Objectives To compare the transfer accuracy of two digital transfer trays, the three-dimensional printed (3D printed) tray and the vacuum-formed tray, in the indirect bonding of labial brackets. Materials and Methods Ten digital dental models were constructed by oral scans using an optical scanning system. 3D printed trays and vacuum-formed trays were obtained through the 3Shape indirect bonding system and rapid prototyping technology (10 in each group). Then labial brackets were transferred to 3D printed models, and the models with final bracket positioning were scanned. Linear (mesi

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Jungbauer, Rebecca, Jonas Breunig, Alois Schmid, et al. "Transfer Accuracy of Two 3D Printed Trays for Indirect Bracket Bonding—An In Vitro Pilot Study." Applied Sciences 11, no. 13 (2021): 6013. http://dx.doi.org/10.3390/app11136013.

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The present study aimed to investigate the impact of hardness from 3D printed transfer trays and dental crowding on bracket bonding accuracy. Lower models (no crowding group: Little’s Irregularity Index (LII) < 3, crowding group: LII > 7, n = 10 per group) were selected at random, digitized, 3D printed, and utilized for semiautomated virtual positioning of brackets and tubes. Hard and soft transfer trays were fabricated with polyjet printing and digital light processing, respectively. Brackets and tubes were transferred to the 3D printed models and altogether digitized using intraoral sc

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Balut, Nasib, Digant P. Thakkar, Enrique Gonzalez, Rodrigo Eluani, and Luis David Silva. "Digital orthodontic indirect bonding systems: A new wave." APOS Trends in Orthodontics 10 (September 18, 2020): 195–200. http://dx.doi.org/10.25259/apos_18_2020.

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Digital technologies are progressing with leaps and bounds and the field of orthodontics is not untouched by it, with innovations like intraoral scanners and 3D printers being easy to own and maintain and increased availability of biocompatible 3D printing materials orthodontist are curious to use this technology to improve orthodontic bracket positioning which would require minimal to no repositioning during the course of treatment. The authors here have tried to outline 2 different methods using CBCT and VTO as guide to decide the bracket positioning digitally and using 3D printed Indirect B

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Haynie, Allison S., Jeryl D. English, Rade D. Paravina, et al. "Colour stability of 3D-printed resin orthodontic brackets." Journal of Orthodontics 48, no. 3 (2021): 241–49. http://dx.doi.org/10.1177/14653125211001079.

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Objective: To evaluate the colour stability of polymeric resins that could be used to 3D-print orthodontic brackets. Design: In vitro, laboratory study Materials and Methods: Disc-shaped specimens were fabricated via 3D printing using three resins: Dental LT; Dental SG; and Clear. Five conditions were evaluated for each resin (n = 10 per treatment per resin) to assess its corresponding effect on colour and translucency: immersion in (1) red wine, (2) coffee, (3) tea and (4) distilled water (control), and (5) exposure to accelerated aging. Colour and translucency measurements were made before a

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Chen, Yisheng, Qianglong Wang, Chong Wang, et al. "Topology Optimization Design and Experimental Research of a 3D-Printed Metal Aerospace Bracket Considering Fatigue Performance." Applied Sciences 11, no. 15 (2021): 6671. http://dx.doi.org/10.3390/app11156671.

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In the aerospace industry, spacecraft often serve in harsh operating environments, so the design of ultra-lightweight and high-performance structures is a major requirement in aerospace structure design. In this article, a lightweight aerospace bracket considering fatigue performance was designed by topology optimization and manufactured by 3D-printing. Considering the requirements of assembly with a fixture for fatigue testing and avoiding stress concentration, a reconstructed model was presented by CAD software before manufacturing. To improve the fatigue performance of the structure, this a

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Cai, Benxiao, Lingling Sun, and Yuchao Lei. "3D Printing Using a 60 GHz Millimeter Wave Segmented Parabolic Reflective Curved Antenna." Electronics 8, no. 2 (2019): 203. http://dx.doi.org/10.3390/electronics8020203.

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This paper proposes a segmented parabolic curved antenna, which can be used in the base station of a 60 GHz millimeter wave communication system, with an oblique Yagi antenna as a feed. By analyzing the reflection and multi-path interference cancellation phenomenon when the main lobe of the Yagi antenna is reflected, the problem of main lobe splitting is solved. 3D printing technology relying on PLA (polylactic acid) granule raw materials was used to make the coaxial connector bracket and segmented parabolic surface. The reflective surface was vacuum coated (via aluminum evaporation) with low-

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WHEATLEY, Greg, and Samuel POPOOLA. "Autonomous transmission control of a 2017 Yamaha Grizzly 700 all-terrain vehicle." Scientific Journal of Silesian University of Technology. Series Transport 110 (March 1, 2021): 183–98. http://dx.doi.org/10.20858/sjsutst.2021.110.15.

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Investigation on a designed and modified standard automatic transmission for a 2017 Yamaha Grizzly All-Terrain Vehicle was carried out to allow it to be controlled remotely and autonomously while maintaining its ability to be manually operated. The vehicle is a part of a project named AutoWeed. This project aims at developing a vehicle which can be used in the Australian outback to control and eradicate weeds. Preliminary tests were conducted on the vehicle to determine the performance parameters required to replace the movement supplied by the operator. Several devices used to achieve this mo

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Park, Jae-Hyun, Jin-Young Choi, Song Hee Oh, and Seong-Hun Kim. "Three-Dimensional Digital Superimposition of Orthodontic Bracket Position by Using a Computer-Aided Transfer Jig System: An Accuracy Analysis." Sensors 21, no. 17 (2021): 5911. http://dx.doi.org/10.3390/s21175911.

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Accurate bracket placement is essential for successful orthodontic treatment. An indirect bracket bonding system (IDBS) has been developed to ensure proper bracket positioning with three-dimensional computer-aided transfer jigs. The purpose of this study was to investigate the accuracy of bracket positioning by a one-body transfer jig according to the tooth type and presence/absence of a resin base. In total, 506 teeth from 20 orthodontic patients were included in this study. After initial dental models were scanned, virtual setup and bracket positioning procedures were performed with 3D softw

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Zhang, Dahua, and Xiang Zhang. "Rehabilitation Brace Based on the Internet of Things 3D Printing Technology in the Treatment and Repair of Joint Trauma." Journal of Healthcare Engineering 2021 (February 25, 2021): 1–11. http://dx.doi.org/10.1155/2021/6663892.

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More and more people pay attention to the printing speed and quality of 3D printing tools. In order to understand whether the 3D printing rehabilitation brace can play a role in the treatment and repair of joint trauma, we used 3D printing technology to print the rehabilitation brace and compared with the traditional rehabilitation brace. The printed parts were analyzed in detail. The experimental results prove that the rehabilitation braces made by the two methods can play a role in the repair of joint trauma. However, 3D printed rehabilitation braces can better meet the needs of patients wit

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Hadisujoto, Budi, and Robby Wijaya. "Development and Accuracy Test of a Fused Deposition Modeling (FDM) 3D Printing using H-Bot Mechanism." Indonesian Journal of Computing, Engineering and Design (IJoCED) 3, no. 1 (2021): 46–53. http://dx.doi.org/10.35806/ijoced.v3i1.148.

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Additive manufacturing process known as the 3D printing process is an advanced manufacturing process including one of the components to support industrial revolution 4.0. The initial development of a 3D printing machine at Sampoerna University is the background of this research. The 3D printing setup of Fused Deposition Modeling (FDM) was built using H-bot moving mechanism by considering the rigidity aspect. The FDM printing method is selected due to its cost and reliability. In this early development, the brackets were custom made using a 3D printer with Polylactic Acid (PLA) material. The re

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Andriyansyah, Deni, Sriyanto, and Agus Jamaldi. "Perancangan Dan Pembuatan Mesin 3D Printer Tipe Cantilever." Abdi Masya 1, no. 2 (2021): 108–14. http://dx.doi.org/10.52561/abma.v1i2.139.

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Teknologi 3D printing termasuk dalam metode manufaktu rbaru yang disebut dengan metode additive manufacturing. Metode ini mempunyai cara kerja menumpuk material untuk membuat sebuah objek 3 dimensi. Penelitian dalam bidang desain dan assembly mesin 3D printer masih belum banya kdilakukan. Pada umumnya, mesin-mesin 3D printer yang digunakan memiliki paling tidak 5 motor stepper, yaitu sumbu X 1 buah, sumbu Y 1 buah, sumbu Z 2 buah serta motor ekstruder 1 buah. Paper ini akan membahas mengenai alternative desain mesin 3D printer FFF dengan model cantilever yang menggunakan 4 motor stepper sehing

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Chaudhary, Narendra, and Niharika Thakur. "Modeling and Printing of Successive Misaligned Teeth Stages." World Journal of Dentistry 8, no. 4 (2017): 309–14. http://dx.doi.org/10.5005/jp-journals-10015-1456.

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ABSTRACT Introduction Patients suffering from problems related to teeth crowding and misalignment require braces for realignment and restoring of perfect teeth. This process of realignment is a long-term treatment varying from 6 to 12 months including many stages during which teeth alignments are achieved in small steps. Patients are always eager to view their futuristic teeth alignment condition at the beginning of their treatment. This requires a predictive methodology on the part of the dentist, which is achievable using software tools and finally reproducing these software-designed stages

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Mangal, Utkarsh, Ji-Young Seo, Jaehun Yu, Jae-Sung Kwon, and Sung-Hwan Choi. "Incorporating Aminated Nanodiamonds to Improve the Mechanical Properties of 3D-Printed Resin-Based Biomedical Appliances." Nanomaterials 10, no. 5 (2020): 827. http://dx.doi.org/10.3390/nano10050827.

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The creation of clinically patient-specific 3D-printed biomedical appliances that can withstand the physical stresses of the complex biological environment is an important objective. To that end, this study aimed to evaluate the efficacy of aminated nanodiamonds (A-NDs) as nanofillers in biological-grade acrylate-based 3D-printed materials. Solution-based mixing was used to incorporate 0.1 wt% purified nanodiamond (NDs) and A-NDs into UV-polymerized poly(methyl methacrylate) (PMMA). The ND and A-ND nanocomposites showed significantly lower water contact angles (p < 0.001) and solubilities (

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Pei, Eujin, Jinsong Shen, and Jennifer Watling. "Direct 3D printing of polymers onto textiles: experimental studies and applications." Rapid Prototyping Journal 21, no. 5 (2015): 556–71. http://dx.doi.org/10.1108/rpj-09-2014-0126.

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Purpose – The purpose of this paper is to investigate the adhesion of polymer materials printed directly onto fabrics using entry-level fused deposition modelling (FDM) machines. A series of functional and decorative parts were designed to explore the limitations and to identify potential applications. Design/methodology/approach – A series of shapes and structures were designed as 3D computer-aided design (CAD) solids to determine whether complex parts could be printed directly onto the surface of fabrics. The structures were fabricated using an entry-level FDM printer with acrylonitrile buta

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Djukanović, Milena, Ardijan Mavrić, Jovana Jovanović, Milovan Roganović, and Velibor Bošković. "Design of 3D Printing Thermo-Sensored Medical Gear in Detecting COVID-19 Symptoms." Applied Sciences 11, no. 1 (2021): 419. http://dx.doi.org/10.3390/app11010419.

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Shortly after the outbreak of the COVID-19 pandemic, there was a need to provide protective equipment to the medical facilities whose supplies were threatened to be depleted. Just like many countries in Europe, Montenegro responded to the need for medical equipment by using the advantages of 3D printers while establishing a state network of production hubs, ensuring closed connectivity, communication, and the mutual fulfilment of personal protective equipment (PPE) demands whenever and wherever required. With the second wave of the pandemic, Montenegro rose to second place in the world with th

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Holland, Steven M., and Anik K. Regan. "A new, more accurate, and easier to use Jacob's staff." Journal of Sedimentary Research 90, no. 7 (2020): 669–72. http://dx.doi.org/10.2110/jsr.2020.003.

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ABSTRACT A new Jacob's staff using 3D printed brackets, a laser pointer, and an iOS app is described here. The staff offers improved accuracy of sighting, especially in situations where the rock exposure is not in the direction of dip, or where a lateral offset in a stratigraphic section is needed. Although the Jacob's staff will also work with a pocket transit or other inclinometer, the iOS app makes it easier to simultaneously maintain the correct dip angle and direction of the staff. The laser pointer substantially reduces error in sighting. The availability and low cost of 3D printing make

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Redaelli, Davide Felice, Valentina Abbate, Fabio Alexander Storm, et al. "3D printing orthopedic scoliosis braces: a test comparing FDM with thermoforming." International Journal of Advanced Manufacturing Technology 111, no. 5-6 (2020): 1707–20. http://dx.doi.org/10.1007/s00170-020-06181-1.

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Abstract In recent years, 3D printing gained considerable attention in the orthopedic sector. This work evaluates the feasibility of producing orthopedic scoliosis braces by 3D printing, comparing performance and costs with classical thermoforming procedures. Critical parameters, such as manufacture time, mechanical properties, weight, and comfort are carefully considered. Polyethylene terephthalate glycol-modified (PETG) was selected among the several filaments materials present on the market. Printed samples were analyzed with electronic microscope, tensile, and impact tests and compared wit

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Statnik, Eugene S., Kirill V. Nyaza, Alexey I. Salimon, Dmitry Ryabov, and Alexander M. Korsunsky. "In Situ SEM Study of the Micro-Mechanical Behaviour of 3D-Printed Aluminium Alloy." Technologies 9, no. 1 (2021): 21. http://dx.doi.org/10.3390/technologies9010021.

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Currently, 3D-printed aluminium alloy fabrications made by selective laser melting (SLM) offer a promising route for the production of small series of custom-designed support brackets and heat exchangers with complex geometry and shape and miniature size. Alloy composition and printing parameters need to be optimised to mitigate fabrication defects (pores and microcracks) and enhance the parts’ performance. The deformation response needs to be studied with adequate characterisation techniques at relevant dimensional scale, capturing the peculiarities of micro-mechanical behaviour relevant to t

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Zhang, Youyu, Junyang Liang, Nanfang Xu, et al. "3D-printed brace in the treatment of adolescent idiopathic scoliosis: a study protocol of a prospective randomised controlled trial." BMJ Open 10, no. 11 (2020): e038373. http://dx.doi.org/10.1136/bmjopen-2020-038373.

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IntroductionAdolescent idiopathic scoliosis (AIS) is a three-dimensional deformity of the spine. Brace treatment is effective for eligible patients with AIS and the effectiveness is significantly correlated with the average brace-wear time per day. Three-dimensional (3D) printing technology is a recent advancement that offers unique opportunities for biomedical applications, and customisation of scoliosis braces might lead to greater patient satisfaction and improved compliance. We present here the design of a randomised controlled trial on the clinical effectiveness of 3D-printed braces versu

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Kairalla, Silvana Allegrini, Cláudia Allegrini Kairalla, Angelo Vicentini Loiola, and Ronaldo Henrique Shibuya. "Fluxo digital na montagem simplificada de bráquetes linguais." Orthodontic Science and Practice 13, no. 52 (2020): 129–35. http://dx.doi.org/10.24077/2020;1352-129135.

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Introduction: In lingual orthodontics technique the brackets are positioned on the teeth lingual surface, and for this reason it is known as a difficult technique due to the complexity of brackets positioning. During the evolution of this technique many forms of lingual appliance assembly were developed. The most used technique recommended to make an orthodontic set-up model and later to transfer the appliance to the patient’s mouth using trays or jigs in order to perform the bonding itself. Subsequently, another and more simplified lingual appliance form emerged, in which the bonding would be

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Bohl, Michael A., Sarah McBryan, Anna G. U. S. Newcomb, et al. "Range of Motion Testing of a Novel 3D-Printed Synthetic Spine Model." Global Spine Journal 10, no. 4 (2019): 419–24. http://dx.doi.org/10.1177/2192568219858981.

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Study Design: Biomechanical model study. Objective: The Barrow Biomimetic Spine (BBS) project is a resident-driven effort to manufacture a synthetic spine model with high biomechanical fidelity to human tissue. The purpose of this study was to investigate the performance of the current generation of BBS models on biomechanical testing of range of motion (ROM) and axial compression and to compare the performance of these models to historical cadaveric data acquired using the same testing protocol. Methods: Six synthetic spine models comprising L3-5 segments were manufactured with variable soft-

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Ng, Kenwick JL, Kajsa Duke, and Edmond Lou. "Investigation of future 3D printed brace design parameters: evaluation of mechanical properties and prototype outcomes." Journal of 3D Printing in Medicine 3, no. 4 (2019): 171–84. http://dx.doi.org/10.2217/3dp-2019-0012.

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Aim: Spinal brace wear time affects treatment effectiveness of adolescent idiopathic scoliosis but remains challenging with the brace’s bulkiness. This study aims to determine the appropriate material and thickness to improve wear comfort. Materials & methods: Thirty-one specimens were tested with 13 ULTEM1010 and 13 Nylon12 potential materials and 5 standard polypropylene material in 2.5, 3.25 and 4 mm thicknesses to evaluate mechanical properties. Donning tests of ULTEM1010 and Nylon12 printed braces were conducted. Results: Nylon12 with 2.5–3.25 mm thickness had higher flexibility and t

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Russell, Douglas, Arianna Bernucci, Amy Scott-Murray, et al. "All Our Eggs In One Basket: Challenges of High Resolution X-Ray Micro-Computed Tomography of Great Auk Pinguinus impennis Eggshell." Biodiversity Information Science and Standards 2 (June 13, 2018): e25794. http://dx.doi.org/10.3897/biss.2.25794.

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High resolution X-ray micro-computed tomography gives the ability to research objects in unprecedented detail in 3D without damaging them but applying these new techniques to specimens can be complex. In 2017 the Natural History Museum (NHM), London embarked on a ground-breaking project with University of Sheffield to compare extinct Great Auk Pinguinus impennis eggshell microstructure to that of their extant relatives to gain new insight into their breeding ecology. NHM has a ZEISS Xradia 520 Versa X-ray microscope capable of submicron X-ray imaging in 3D but using it required supporting and

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Akki, Rajesh, MUNAGALA GAYATRI RAMYA, K. Chinni Krishna, and Singaram Kathirvel. "Fabrication of drug eluting medical device for treating stenosis by 3D printing and dip coating using aspirin as a model drug." Journal of Drug Delivery and Therapeutics 9, no. 6-s (2019): 148–54. http://dx.doi.org/10.22270/jddt.v9i6-s.3767.

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3D printing is a new innovative manufacturing method for fabrication of customized medical devices. The customized medical devices & long-lasting implantable devices.has increasing demand for addressing some critical cases in surgeries. The main aim of this work was to explore the potential of 3D printing in Fabrication of medical devices and prosthetics. The characters of the polymers, the features of softwares were studied. The study showed that drug loading into filament through hot melt extrusion and followed by 3D printing has many defects such as denaturing of drugs at hi

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CHEN, CHUNG-DE, CHING-HSIANG CHEN, CHENG-LI LIN, et al. "DEVELOPMENTS, MECHANICAL PROPERTY MEASUREMENTS AND STRENGTH EVALUATIONS OF THE WRIST BRACES FOR THE WRIST FRACTURE PATIENTS." Journal of Mechanics in Medicine and Biology 19, no. 02 (2019): 1940021. http://dx.doi.org/10.1142/s0219519419400219.

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In this paper, the wrist braces for the wrist fracture patients are developed. Geometry of the patient’s wrist surface anatomy was digitalized and recorded by an optical 3D scanner. An expert software was developed to generate the brace model, on which several holes are distributed to increase the air permeability. Finally, the brace is fabricated by commercial FDM 3D printer. For ensuring the strength of the wrist brace, the tensile test and impact test were conducted to measure the elastic modulus, yielding strength and fracture strength. A finite element model was established to investigate

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Cozzani, Mauro, Salima Antonini, Daniela Lupini, Davide Decesari, Fabrizio Anelli, and Tiziana Doldo. "A New Proposal: A Digital Flow for the Construction of a Haas-Inspired Rapid Maxillary Expander (HIRME)." Materials 13, no. 13 (2020): 2898. http://dx.doi.org/10.3390/ma13132898.

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Maxillary expansion is a common orthodontic treatment used for the correction of posterior crossbite resulting from reduced maxillary width. Transverse maxillomandibular discrepancies are a major cause of several malocclusions and may be corrected in different manners; in particular, the rapid maxillary expansion (RME) performed in the early mixed dentition has now become a routine procedure in orthodontic practice. The aim of this study is to propose a procedure that reduces the patient cooperation as well as the lab work required in preparing a customized Haas-inspired rapid maxillary expand

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Ng, David. "Wearable smart device incorporating real-time clock module and alcohol sensor." KnE Engineering 2, no. 2 (2017): 328. http://dx.doi.org/10.18502/keg.v2i2.633.

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<p>In this work, we designed and built a wearable device with battery-saving and alcohol-sensing functions. The motivation for this device was to deliver a proof-of-concept wearable and functional device which alerts the user of possible alcohol breath level above a threshold limit and can be worn for an extended time due to battery saving features. It was built using a combination of Arduino electronics and sensors, and encased in 3D-printed ABS bracelet. A 4-digit 7-segment LED display on board is used to display time which is tracked using a real-time clock module. A 3-axis accelerome

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Hodecker, Lutz, Christoph Bourauel, Bert Braumann, Teresa Kruse, Hildegard Christ, and Sven Scharf. "Sliding behaviour and surface quality after static air polishing of conventional and modern bracket materials." Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie, September 23, 2021. http://dx.doi.org/10.1007/s00056-021-00352-9.

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Abstract Objectives As part of orthodontic treatment, air polishing is routinely used for professional tooth cleaning. Thus, we investigated the effects of static powder polishing on sliding behaviour and surface quality of three different bracket materials (polymer, ceramic, metal), including a 3D-printed bracket. Methods Two bracket types of each material group were polished with an air-polishing device using sodium bicarbonate. Exposure times were set at 10, 20, and 60 s; the application distance was 5 mm. The force loss due to sliding resistance was tested with an orthodontic measurement a

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Gupta, Deven K., Lily Chen, Andrew E. Heidari, Steven Chau, Brandyn Dunn, and Brian J. F. Wong. "Development of a Cost-Effective Surgical Headlight Using Consumer Light Emitting Diode Lighting and 3D Printing." Surgical Innovation, February 25, 2021, 155335062199776. http://dx.doi.org/10.1177/1553350621997764.

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Need. Battery-powered Light Emitting Diode (LED) surgical headlights are necessary for improved intraoperative illumination but may be costly. Technical Solution. The objective of this study was to develop a low-cost surgical headlight using a consumer-grade LED headlight and 3D-printed mount. Proof of Concept. Eighteen surgical residents performed simulation exercises that mimicked suturing in the oral cavity using both a custom prototype headlight and a commercial surgical headlight. The time required to complete the task with each headlight was recorded along with an exit survey. A second d

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Chaudhary, Vivek, Puneet Batra, Karan Sharma, Sreevatsan Raghavan, Vikram Gandhi, and Amit Srivastava. "A comparative assessment of transfer accuracy of two indirect bonding techniques in patients undergoing fixed mechanotherapy: A randomised clinical trial." Journal of Orthodontics, December 2, 2020, 146531252096857. http://dx.doi.org/10.1177/1465312520968571.

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Objectives To assess the transfer accuracy of three-dimensional (3D) printed transfer trays and compare them with transfer trays made up of polyvinyl siloxane (PVS) for use in indirect bonding. Design: This was a two-arm parallel prospective randomised controlled trial. Setting: The trial was undertaken at the outpatient department of a dental college. Participants: A total of 30 patients (18 men, 12 women) were randomly allocated to two groups. Methods: The inclusion criteria included patients with permanent and fully erupted dentition (age range = 17–24 years), Angles class I malocclusion wi

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"Tool path optimization of a 3D printer via an enhanced electromagnetism-like mechanism algorithm for solar panel brackets fabrication." 3C Tecnología_Glosas de innovación aplicadas a la pyme 7, no. 4 (2019). http://dx.doi.org/10.17993/3ctecno.2019.specialissue.06.

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Jun, Seungkook, Xiaobo Zhou, Daniel K. Ramsey, and Venkat N. Krovi. "Smart Knee Brace Design With Parallel Coupled Compliant Plate Mechanism and Pennate Elastic Band Spring." Journal of Mechanisms and Robotics 7, no. 4 (2015). http://dx.doi.org/10.1115/1.4030653.

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Abstract:

Recent research on exoskeletons and braces has examined the ways of improving flexibility, wearability or overall weight-reduction. Part of the challenge arises from the significant loading requirements, while the other part comes from the inflexibilities associated with traditional (rigid link-moving joint) system architectures. Compliant mechanisms offer a class of articulated multibody systems that allow creation of lightweight yet adjustable-stiffness solutions for exoskeletons and braces, which we study further. In particular, we will introduce the parallel coupled compliant plate (PCCP)

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McCain, Emily M., Theresa L. Libera, Matthew E. Berno, Gregory S. Sawicki, Katherine R. Saul, and Michael D. Lewek. "Isolating the energetic and mechanical consequences of imposed reductions in ankle and knee flexion during gait." Journal of NeuroEngineering and Rehabilitation 18, no. 1 (2021). http://dx.doi.org/10.1186/s12984-021-00812-8.

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Abstract Background Weakness of ankle and knee musculature following injury or disorder results in reduced joint motion associated with metabolically expensive gait compensations to enable limb support and advancement. However, neuromechanical coupling between the ankle and knee make it difficult to discern independent roles of these restrictions in joint motion on compensatory mechanics and metabolic penalties. Methods We sought to determine relative impacts of ankle and knee impairment on compensatory gait strategies and energetic outcomes using an unimpaired cohort (N = 15) with imposed uni

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