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Comparative study of torque expression and its biomechanical effects: spherical self-ligating bracket with lock-hook system versus passive self-ligating bracket and conventional bracket.
BMC Oral Health
January 2025
Department of Stomatology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
Background: Proper torque control is crucial to the outcome of orthodontic treatment. This study aimed to employ finite element analysis to compare the torque capabilities of a novel spherical self-ligating bracket with a lock-hook system against those of commonly used passive self-ligating and conventional bracket systems, as well as to reveal the biomechanical changes in the periodontal ligament (PDL) during torque expression.
Methods: A maxillary right central incisor, along with its PDL and alveolar bone, were modeled.
Comparing the Impact of Titanium and Stainless Steel Retainers on Lower Incisor Stability, Periodontal Health, and Retainer Survival: A Preliminary Study.
Turk J Orthod
December 2024
Trakya University Faculty of Dentistry, Department of Orthodontics, Edirne, Turkey.
Objective: This study aims to compare the impact of titanium and stainless steel (SS) retainer wires on lower incisor stability and periodontal health.
Methods: Fifty patients between the ages of 14.1 and 29.
Exploring heavy metal dynamics and risks from dust and soil in urban cities of Jharkhand, India.
Sci Rep
December 2024
Department of Civil and Environmental Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India.
Jharkhand is a minerally prosperous state with geogenic and industrial origins of metals. This study assesses the seasonal variation of pseudo-total metal contents (Cr, Ni, Pb, Zn, Mn, Cu, Fe, Mg, Al) and related contamination and risks in indoor dust, street dust, and soils of four major cities of Jharkhand. Across cities and seasons, Zn, Cu, and Pb were the most common pollutants.
View Article and Find Full Text PDFSurgical management of costal margin rupture associated with intercostal hernia: Evolution of techniques.
J Trauma Acute Care Surg
October 2024
From the Sheffield Teaching Hospitals NHS Foundation Trust (P.W., J.N.R., S.T., J.G.E.), Sheffield, England; Erasmus Medical Centre (M.M.E.W.), Rotterdam, The Netherlands; and University Hospital of Southampton NHS Foundation Trust (A.T.).
Introduction: Costal margin rupture (CMR) injuries in association with intercostal hernia (IH) are rare and symptomatic and provide a significant surgical challenge. Surgical failure rates up to 60% are reported, and optimal techniques are unclear. We have characterized these injuries and describe the evolution of our surgical management techniques.
View Article and Find Full Text PDFThe Critical Influence of Wire Diameter and Bending for Orthodontic Wire Integration-New Insights for Maxillary Movements (In Vitro Study).
Dent J (Basel)
December 2024
Research Center for Digital Technologies in Dentistry and CAD/CAM, Department of Dentistry, Faculty of Medicine and Dentistry, Danube Private University, Steiner Landstraße 124, 3500 Krems an der Donau, Austria.
: Traditional methods for palatal expansion using fixed appliances often face limitations in comfort and aesthetics. In comparison, aligner therapy has limitations, particularly regarding maxillary expansion. The aim of this study is to examine the biomechanical properties regarding the wire diameter and bending of different stainless steel wires to evaluate their potential for incorporation into maxillary aligner therapy.
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