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orthodontics
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Finite element analysis of miniscrew placement in mandibular alveolar bone with varied angulations
, Article European Journal of Orthodontics ; Volume 37, Issue 1 , August , 2015 , Pages 56-59 ; 01415387 (ISSN) ; Jamilian, A ; Shafieyoon, A ; Karimi, H ; Cozzani, M ; Sharif University of Technology
Oxford University Press
2015
Abstract
Summary Background: Titanium miniscrews are increasingly used as orthodontic anchorage. Various factors are known to affect the stability of miniscrew. Placement angle is one of the most controversial issues in this area. Thus, the aim of this finite element study was to evaluate the influence of placement angle and direction of force on the stability of miniscrews. Materials and methods: Finite element analysis was performed using miniscrews inserted into 1mm of cortical bone and 10mm of trabecular bone at angles of 30, 60, 90, 120, and 150 degrees to the alveolar bone. Force of 2 Newton (N) was applied to the heads of the miniscrews in two directions of 0 and 30 degrees. Results: The...
Comments regarding: Pereira SA, Lopez M, Lavado N, Abreu JM, Silva H. A clinical risk prediction model of orthodontic-induced external apical root resorption. Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial 2014;55(2):66-72
, Article Revista Portuguesa de Estomatologia, Medicina Dentaria e Cirurgia Maxilofacial ; Volume 56, Issue 3 , 2015 , Pages 141-142 ; 16462890 (ISSN) ; Sharif University of Technology
Elsevier Doyma
2015
Machine learning and orthodontics, current trends and the future opportunities: A scoping review
, Article American Journal of Orthodontics and Dentofacial Orthopedics ; Volume 160, Issue 2 , 2021 , Pages 170-192.e4 ; 08895406 (ISSN) ; Nadimi, M ; Rohban, M. H ; Shamsoddin, E ; Lee, V. Y ; Motamedian, S. R ; Sharif University of Technology
Mosby Inc
2021
Abstract
Introduction: In recent years, artificial intelligence (AI) has been applied in various ways in medicine and dentistry. Advancements in AI technology show promising results in the practice of orthodontics. This scoping review aimed to investigate the effectiveness of AI-based models employed in orthodontic landmark detection, diagnosis, and treatment planning. Methods: A precise search of electronic databases was conducted, including PubMed, Google Scholar, Scopus, and Embase (English publications from January 2010 to July 2020). Quality Assessment and Diagnostic Accuracy Tool 2 (QUADAS-2) was used to assess the quality of the articles included in this review. Results: After applying...
Effect of localized corrosion on the galvanic corrosion of nitinol and dental alloys
, Article Anti-Corrosion Methods and Materials ; Volume 56, Issue 6 , 2009 , Pages 323-329 ; 00035599 (ISSN) ; Shirazi, M ; Rahman, M ; Fakheri, E ; Aref, M. R
2009
Abstract
Purpose: The purpose of this paper is to evaluate the galvanic corrosion of nitinol orthodontic wires with six dental alloys in artificial saliva and consider the effect of initiated localized corrosion and real surfaces of anode and cathode on galvanic current. Design/methodology/approach: Linear polarization and cyclic polarization curves for each alloy in de-aerated Duffo and Castillo's artificial saliva are obtained. Galvanic corrosion investigation is conducted by polarization curve intersection and mixed potential theory methods. In order to verify the initiation of localized corrosion, scanning electron microscopy is used. Findings: Initiation of localized corrosion on the anode...