Results 1 to 10 of about 4,522,797 (178)

Cutting Flute and Thread Design on Self-Tapping Pedicle Screws Influence the Insertion Torque and Pullout Strength

open access: yesApplied Sciences, 2022
Self-tapping screws are commonly used in trauma and maxillofacial surgery and are increasingly used for pedicle screw insertions. In order to evaluate how the quantity and length of cutting flutes on self-tapping pedicle screws affect the insertion ...
Lien-Chen Wu   +4 more
doaj   +4 more sources

Self-Drilling Versus Self-Tapping Screws: A 3D Finite Element Analysis. [PDF]

open access: yesCraniomaxillofac Trauma Reconstr, 2021
Study Design: Self-tapping and self-drilling screws are twomodalities available for plate fixation. Whencompared to self-drilling, self-tapping screws have a few drawbacks like screw loosening, thermal osteolysis, equipment dependent, and time-consuming.
Kumar VK   +5 more
europepmc   +3 more sources

Investigation on fracture behavior of unidirectional bamboo laminate with self-tapping screws reinforcement

open access: yesCase Studies in Construction Materials, 2023
The bamboo structure has received more and more attention as a green, renewable construction with an increasing focus on environmental issues. Cracking at joints or openings and brittle fracture of bamboo are urgent problems in bamboo structures, leading
Yao Wu   +3 more
doaj   +2 more sources

Fire Performance of Self-Tapping Screws in Tall Mass-Timber Buildings

open access: yesApplied Sciences, 2021
Building elements are required to provide sufficient fire resistance based on requirements set forth in the National Building Code of Canada (NBCC). Annex B of the Canadian standard for wood engineering design (CSA O86-19) provides a design methodology ...
Mathieu Létourneau-Gagnon   +2 more
doaj   +3 more sources

Influence of Screw Length and Bone Quality on Pedicle Screw Anchorage Under Cyclic Fatigue Loading [PDF]

open access: yesGlobal Spine Journal
Study Design Cadaveric biomechanical analysis. Objectives The specific vertebral region that contributes most critically to pedicle screw fixation remains controversial.
Friederike Eva Roch MD   +8 more
doaj   +2 more sources

Glulam connections assembled with screws in different installation angles

open access: yesMaderas: Ciencia y Tecnología, 2021
Self-tapping screws are the recognized state-of-the-art in fastener technology for timber structures. Combining fasteners of different stiffness, such as self-tapping screws with different installation angles, can be advantageous to simultaneously ...
David Hanna, Thomas Tannert
doaj   +1 more source

Novel Digital Technique to Analyze the Influence of the Operator Experience on the Accuracy of the Orthodontic Micro-Screws Placement

open access: yesApplied Sciences, 2021
To analyze the influence of the operator experience on the accuracy of orthodontic self-tapping micro-screws placement, a total of 60 orthodontic self-tapping micro-screws were randomly distributed into two study groups: Group A. Orthodontic micro-screws
María Bufalá Pérez   +6 more
doaj   +1 more source

Danger of self-drilling self-tapping screws [PDF]

open access: yesThe Egyptian Orthopaedic Journal, 2018
Some locking plate systems make use of self-drilling and self-tapping screws. Theoretically, this technology facilitates insertion and decreases operative time. This case illustrates one possible danger of broken screws in these systems. They may carry a
Waleed Awwad
doaj   +1 more source

Numerical Investigation of the Axial Stress Distribution of Self-Tapping Screws in Mass Timber Products during Wetting or Drying

open access: yesBuildings, 2023
Self-tapping screws (STS) are used in wood-to-wood and wood-to-steel connections in timber structures. Premature failure of STS during the construction phase has been reported by structural engineers and contractors in relation to a few North American ...
Mehsam Tanzim Khan   +3 more
doaj   +1 more source

Static and dynamic examination of a locking plate in various setups for the stabilization of bone shaft fractures, including periprosthetic [PDF]

open access: yesRehabilitacja Medyczna, 2021
Introduction: Hip and knee arthroplasty, formerly known as the “gold standard” in the treatment of articular cartilage damage, after a period of being highly popular, are changing the way they are perceived over time due to their related complications ...
Wojciech Marczyński, Andrzej Sobolewski
doaj   +1 more source

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