Results 21 to 30 of about 21,426 (264)

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

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

The BONEBRIDGE active transcutaneous bone conduction implant: effects of location, lifts and screws on sound transmission

open access: yesJournal of Otolaryngology - Head and Neck Surgery, 2020
Background The BONEBRIDGE (MED-EL, Innsbruck, Austria) is a bone-conduction implant used in the treatment of conductive and mixed hearing loss. The BONEBRIDGE consists of an external audio processor and a bone-conduction floating mass transducer that is ...
Seyed Alireza Rohani   +3 more
doaj   +1 more source

Biomechanical evaluation of peak reverse torque (PRT) in a dynamic compression plate-screw construct used in a goat tibia segmental defect model

open access: yesBMC Veterinary Research, 2019
Background Peak reverse torque (PRT) is a valid method to evaluate implants’ secondary stability in the healing bone. The secondary stability is achieved by the implant over time and it has been positively correlated with the implants’ osseointegration ...
Remigiusz M. Grzeskowiak   +6 more
doaj   +1 more source

Clinical analysis of internal fixation femoral neck fractures with two or three cannulated screws [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2021
Introduction/Objective. Angular stability and dynamic fixation are key factors to successful healing of femoral neck fractures. The objective was to evaluate the efficacy of internal fixation of femoral neck fractures with two parallel self-tapping ...
Kostić Igor M.   +3 more
doaj   +1 more source

Self-tapping screws as reinforcement on single-dowel connections with artificial cracks

open access: yes, 2023
Self-tapping screws have the potential to reinforce timber elements. However, their application is restricted due to a lack of design guidance. Compared with fully threaded screws, partially threaded screws with a shorter thread length have less drive-in
Wen-Shao Chang (17467278)   +2 more
core   +1 more source

Initial engagement and axial force model for self-tapping bone screws

open access: yesCurrent Directions in Biomedical Engineering, 2022
Correctly torquing bone screws is important for implant fixation longevity and strength. A model-based smart screwdriver has been proposed to regulate torque, however current models ignore axial force and the initial engagement of the screw.
Wilkie Jack, Rauter Georg, Möller Knut
doaj   +1 more source

Experimental and Numerical Study on Shear Properties of Timber-to-timber Joint Using a Dowel Reinforced with a Self-tapping Screw

open access: yesBioResources, 2023
Herein, a beech wood dowel reinforced with a self-tapping screw (composite dowel in brief) is proposed. Composite dowels were welded into the predrilled holes by high speed rotation.
Jie Shen, Xudong Zhu, Jianbing Chen
doaj   +2 more sources

INFLUENCE OF THE SPECIMEN PREPARATION ON THE EMBEDMENT STRENGTH OF SELF-TAPPING SCREWS

open access: yesWorld Conference on Timber Engineering (WCTE 2023), 2023
: Due to their simple application and their wide-ranging applicability, self-tapping timber screws are either used for various types of connections or reinforcements in timber constructions.
Michael Gstettner, A. Ringhofer
semanticscholar   +1 more source

Computational simulation of light timber framing connections strengthened with self-tapping screws

open access: yes, 2021
Traditional light timber framing systems, comprised of stud to top and bottom plate connections, suffer from relatively low stiffness along compression perpendicular-to-grain of the plates, leading to excessive shortening of studs in mid-rise buildings ...
Kildashti, Kamyar (R18709)   +3 more
core   +1 more source

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