Results 61 to 70 of about 105,819 (269)

Reconstruction of the adult hemifacial microsomia patient with temporomandibular joint total joint prosthesis and orthognathic surgery [PDF]

, 2018
HFM patients' reconstruction has always been a challenge for maxillofacial surgeons, and numerous reconstructive techniques have been described. Surgical treatment depends on the patient's age and contemplates Temporomandibular Joint (TMJ) reconstruction
Basile, Emanuela, Cascone, Piero, Marchetti, Claudio, Ramieri, Valerio, Tarsitano, Achille, Vellone, Valentino   +5 more
core   +3 more sources

A Novel Screw Drive for Allogenic Headless Position Screws for Use in Osteosynthesis—A Finite-Element Analysis

Bioengineering, 2021
Due to their osteoconductive properties, allogenic bone screws made of human cortical bone have advantages regarding rehabilitation compared to other materials such as stainless steel or titanium.
Sebastian Lifka, Werner Baumgartner
doaj   +1 more source

Dynamic stabilization versus fusion for treatment of degenerative spine conditions. [PDF]

, 2011
Study design Comparative effectiveness review.Study rationale Spinal fusion is believed to accelerate the degeneration of the vertebral segment above or below the fusion site, a condition called adjacent segment disease (ASD).
Chou, Dean, Ecker, Erika, Lau, Darryl, Skelly, Andrea   +3 more
core   +1 more source

Does the Miniscrew Length, Insertion Level, and Insertion Force Make a Difference on the Stress and Strain Distribution Across the Alveolar Bone? A Finite Element Study

Journal of Indian Orthodontic Society
Objective The aim of this study was to evaluate, using the finite element method (FEM), the stresses generated on various parts of the mini-screw and on the bone resulting from the insertion of mini-screws of varying lengths and under different forces ...
Anand Marya, Matthew Angelo Mina Eugenio, Adith Venugopal, Narayan Gandedkar, Nasim Mesgarzadeh   +4 more
doaj   +1 more source

Use of Eggshells as Bone Grafts around Commercially Pure Titanium Implant Screws Coated with Nano Calcium Sulfate

International Journal of Biomaterials, 2022
Background. Implant insertion in regions with poor bone quantity, such as the posterior maxilla, is potentially associated with an increased rate of implant failure. Calcium sulfate can be used as the coating material for commercially pure titanium (CpTi)
Dher Riyadh Kadhim, Thekra Ismael Hamad, Abdalbseet A. Fatalla   +2 more
doaj   +1 more source

Comparison and prediction of pullout strength of conical and cylindrical pedicle screws within synthetic bone [PDF]

, 2009
Background This study was designed to derive the theoretical formulae to predict the pullout strength of pedicle screws with an inconstant outer and/or inner diameter distribution (conical screws).
Wen-Chi Tsai, Po-Quang Chen, Tung-Wu Lu, Shing-Sheng Wu, Kao-Shang Shih, Shang-Chih Lin   +5 more
core   +2 more sources

Biomechanical analysis of a cranial Patient Specific Implant on the interface with the bone using the Finite Element Method

, 2017
- New advance technologies based on reverse engineering , design and additive manufacturing, have expanded design capabilities for biomedical applications to include Patient Specific Implants (PSI). This change in design paradigms needs advanced tools to
Díaz, J., González-Estrada, Octavio Andrés, López, C.   +2 more
core   +1 more source

Cortical bone screws constructive characteristics – A comparative study [PDF]

, 2021
Andrea T. Lugas, Domenico Aloj, Daniele Santoro, Vittoria Civilini, Simone Borrelli, Cristina Bignardi   +5 more
openalex   +1 more source

Enhanced bone screw fixation with biodegradable bone cement in osteoporotic bone model

Journal of Applied Biomaterials & Biomechanics, 2012
Purpose The purpose of this study was to study the potential of novel biodegradable PCL bone cement to improve bone screw fixation strength in osteoporotic bone. Methods The biomechanical properties of bone cement (ε-polycaprolactone, PCL) and fixation strength were studied using biomechanical tests and bone screws fixed in an osteoporotic bone model ...
Tiina, Juvonen, Arto, Koistinen, Heikki, Kröger, Reijo, Lappalainen   +3 more
openaire   +2 more sources

Fracture Compression and Construct Stability with Variable Pitch Locking Screws in Cadaveric Specimens

Foot & Ankle Orthopaedics
Category: Trauma; Basic Sciences/Biologics Introduction/Purpose: A variable pitch locking screw is intended to provide interfragmentary compression combined with fixed angle stability of locking plate constructs.
Zachary A. Koroneos BS, Shelby Alwine BS, Peter Tortora BS, Michaela D. Pitcher BS, Christian Benedict BS, Hwabok Wee PhD., Allen Kunselman MA, Greg Lewis PhD., Michael Aynardi MD   +8 more
doaj   +1 more source