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Arch wires

Amaia Goena
Date of birth: 17/11/1998; gender: female. A. PRE-TREATMENT DOCUMENTS: 11 years old; 02/2010. DIAGNOSIS: Angle's class: class II division 2. Missing teeth before treatment: none. TREATMENT PLANNING: Without extractions. Alignment, levelling and arch coordination with intermaxillary class II alastics. Intercuspidation, finishing. Damon's bimaxillary multi-bracket. Beginning of treatment: 12 years old; 10/2010. B. POST-TREATMENT DOCUMENTS: 14 years old; 11/2012...
February 15, 2019: International Orthodontics
Suko Adiarto, Sung Gwon Kang, Ismoyo Sunu, Taofan Siddiq, Hananto Andriantoro, Iwan Dakota, Raman Uberoi
INTRODUCTION: Although Fenestrated TEVAR (F-TEVAR) has been considered to be a more physiologic approach to treat proximal descending aortic pathology, its application is still limited due to availability, cost and technical difficulties. We introduce a new design of fenestrated stent graft with a new delivery system and successfully performed first in human implantation in two patients, one with an aortic aneurysm and one with an acute aortic dissection. MATERIALS AND METHODS: The design of these two wires fenestrated stent graft include creation of an additional lumen at the side of the olive tip during manufacture, from which an additional wire can be introduced for a side branch passing into the fenestration, running inside the stent graft and exit the delivery sheath through additional hub...
February 14, 2019: Cardiovascular and Interventional Radiology
Amir Farhang Miresmæili, Vahid Mollabashi, Leila Gholami, Maryam Farhadian, Loghman Rezaei-Soufi, Bahareh Javanshir, Milad Malekshoar
INTRODUCTION: The aim of the present study was to compare the tendency of mandibular incisor rotation relapse after conventional circumferential supracrestal fiberotomy (CSF) with Er,Cr:YSGG laser-aided CSF. METHODS: In this three-arm parallel study, the patients with one lower incisor rotation greater than 30 degrees before treatment were selected. The patients were randomly assigned to three groups in a 1:1:1 ratio. Rotational relapse tendency was measured on a digitized model one month after arch wire removal...
February 11, 2019: International Orthodontics
Tripti Tikku, Rohit Khanna, Akhil Agarwal, Kamna Srivastava, Shashank Shekhar, Ivy Shukla
Background: To determine and compare the force-deflection values of different types of nickel-titanium (NiTi) wires during unloading phase at varying deflections, that is 1 mm, 1.5 mm, 2 mm, and 2.5 mm, with the use of self-ligating ceramic brackets using modified bending test on a typodont under controlled temperature conditions. Materials and Methods: In this in vitro study total of 45 wires of ovoid shape of three different NiTi wires - pseudoelastic NiTi (Group I), heat activated NiTi (Group II), and esthetic coated NiTi (Group III) for maxillary arch were tested after insertion in ceramic self-ligating brackets bonded to plastic teeth of phantom jaw...
January 2019: Dental Research Journal
Karin Berggren, Nils Wallin Håkansson
OBJECTIVE: To describe a surgical approach for preplanned orbital exenteration. ANIMALS STUDIED: Indications included intraconal orbital mass lesions. Four dogs were included, 3 with neoplasia and one with retro bulbar nodular fasciitis. PROCEDURE: To facilitate complete removal of lesions, exenteration was performed by a new procedure for wide access. The frontalis and temporalis muscles were elevated and retracted through a single U-shaped skin incision...
January 30, 2019: Veterinary Ophthalmology
Hugues Beaufrère, Delphine Laniesse, Claudia Kabakchiev, Rick Axelson, Alex Zur Linden
CASE DESCRIPTION A 16-year-old female hawk-headed parrot (Deroptyus accipitrinus) was evaluated because of beak trauma and difficulty eating. CLINICAL FINDINGS Physical examination revealed a lateral tissue protrusion in the left half of the oropharyngeal cavity ventral to the proximal aspect of the maxillary tomium as well as a small bony prominence on the left jugal arch. Range of motion of the beak appeared normal. A CT scan of the skull revealed rostroventral displacement of the left palatine bone from the maxilla and left lateral subluxation and lateral luxation of the pterygoid-parasphenoid-palatine complex and pterygoid-palatine articulation, respectively; and transverse fractures of the ipsilateral pterygoid bone, jugal arch, and palatine bone...
January 15, 2019: Journal of the American Veterinary Medical Association
Gilbert Cadena, Huy T Duong, Jonathan J Liu, Kee D Kim
OBJECTIVEC1-2 is a highly mobile complex that presents unique surgical challenges to achieving biomechanical rigidity and fusion. Posterior wiring methods have been largely replaced with segmental constructs using the C1 lateral mass, C1 pedicle, C2 pars, and C2 pedicle. Modifications to reduce surgical morbidity led to the development of C2 laminar screws. The C1 posterior arch has been utilized mostly as a salvage technique, but recent data indicate that this method provides significant rigidity in flexion-extension and axial rotation...
December 14, 2018: Journal of Neurosurgery. Spine
Ming-Feng Wang, Shuang Li, Lin Liu
PURPOSE: To investigate the changes of condyle position by decreasing posterior occlusal plane angle in Class II high angle cases. METHODS: Fifteen Class II high angle patients, aged from 15 to 30, were treated. Before treatment, ANB>5°, FH-MP>32°, molar relationship was Class II bilaterally. The treatment began with aligning and leveling the upper and lower dental arch, then the upper arch was expanded when necessary. Multiloop edgewise arch wire (MEAW) was used to guide the mandible forward and flatten the posterior occlusal plane...
August 2018: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Chiho Kato, Takashi Ono
Skeletal Class II high-angle open bite is often accompanied by osteoarthrosis of the temporomandibular joint (TMJ-OA). This type of malocclusion is challenging to correct, and it has been reported that patients with TMJ-OA treated with orthognathic surgery often experience skeletal relapse and a poor prognosis. This case report describes the treatment of a 25-year-old woman with retrognathia and TMJ-OA, whose masseter and temporal muscle activities were weak. Temporary anchorage devices were placed in the maxilla and the mandible, and the first molars were intruded...
December 2018: American Journal of Orthodontics and Dentofacial Orthopedics
Hozan Mufty, Steffen Rex, Inge Fourneau, Geert Maleux
Endovascular treatment of both type A and type B aortic dissection complicated by organ malperfusion is gaining increasing interest and evidence. Different fenestration techniques of the dissection membrane have already been described. We present a 53-year-old patient with complicated type A aortic dissection after previous repair of the ascending aorta. The patient was treated with dissection membrane fenestration and 'chees-wire' technique. Due to the mobility of the dissection flap, we encountered problems to perforate the dissection membrane with the use of a needle...
November 23, 2018: Annals of Vascular Surgery
Y B Kim, M Bayome, J H Park, H J Lim, S S Mo, N K Lee, Y A Kook
OBJECTIVE: The aim of this study was to evaluate the biomechanical effects of temporary skeletal anchorage devices (TSADs) on the mandibular dentition and mandible during total arch distalization according to locations and types of the TSADs using finite element (FE) analysis. SETTING AND SAMPLE POPULATION: A model of the mandible and teeth were used to build an FE analysis model. MATERIALS AND METHODS: Four FE models were constructed: Ramal plate (Type A) Sugawara plate (Type B), buccal shelf miniscrew (Type C), and interradicular miniscrew (Type D)...
November 22, 2018: Orthodontics & Craniofacial Research
Takashi Murakami, Akimasa Morisaki, Shinsuke Nishimura, Yosuke Takahashi, Yoshito Sakon, Mariko Nakano, Etsuji Sohgawa, Hiromichi Fujii, Toshihiko Shibata
OBJECTIVES: The through-and-through guidewire technique has been utilized for safe advancement of a high-profile stent graft delivery system through the tortuous aorta. A brachial-to-femoral configuration is most commonly established, but a few alternatives have been described. This study aimed to report our experience with the externalized transapical guidewire (ETAG) technique in patients who underwent thoracic endovascular aortic repair (TEVAR) and to explore its utility, feasibility and safety...
October 22, 2018: European Journal of Cardio-thoracic Surgery
Suleyman Kutalmış Buyuk, Mehmet Sami Guler, Muhammed Latif Bekci
AIM: The purpose of this study is to compare the effects of different wire size reverse closing loop and retraction forces in canine tooth distalization using the finite element analysis method. MATERIALS AND METHODS: Maxillary alveolar bone, maxillary first molar, second premolar and canine teeth were constructed in three dimensions along with their periodontal ligaments and standard edgewise brackets of 0.022 inch and stainless-steel reverse closing loop of 0...
October 10, 2018: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
Ashish Shrikant Satpute, Syed Ahmed Mohiuddin, Amol Madhukar Doiphode, Sujay Sanjay Kulkarni, Ahtesham Ahmad Qureshi, Swapnil Bharat Jadhav
PURPOSE: Intermaxillary fixation (IMF) is a fundamental principle in the management of mandibular fractures but with recent advent of open reduction and internal fixation (ORIF), use of IMF is almost limited intraoperatively. Therefore, we compared the efficacy of Erich arch bar versus embrasure wires for intraoperative IMF in mandibular fractures. METHOD: This prospective study was comprised of 50 patients with mandibular fractures who required ORIF with intraoperative IMF...
December 2018: Oral and Maxillofacial Surgery
Sachin Ahuja, Seema Gupta, Eenal Bhambri, Varun Ahuja, Baljinder Singh Jaura
OBJECTIVE: To study the biomechanical effects of the three-piece intrusion arch and Kalra simultaneous intrusion and retraction arch (K-SIR) on simultaneous intrusion and retraction of maxillary anterior teeth. DESIGN: Three-dimensional analysis of stresses and displacement of the anterior and posterior teeth with the three-piece intrusion arch and K-SIR arch was done using the finite element method (FEM). SETTING: Department of Orthodontics, Surendera Dental College and Research Institute, India...
October 3, 2018: Journal of Orthodontics
Azita Tehranchi, Hossein Behnia, Fereydoun Pourdanesh, Parsa Behnia, Nelson Pinto, Farnaz Younessian
Objective: The aim of this study was to evaluate the effect of LPRF, placed in extraction sockets, on orthodontic tooth movement (OTM). Materials and Methods: Thirty extraction sockets from eight patients (five males, three females, with a mean age of 17.37 years; range 12-25 years) requiring extraction of first premolars based on their orthodontic treatment plan participated in this split-mouth clinical trial. In one randomly selected quadrant of each jaw, the extraction socket was preserved as the experimental group by immediate placement of LPRF in the extraction socket...
July 2018: European Journal of Dentistry
Liang Xu, Xiao-Hong Huang, Shan Lin
PURPOSE: To compare the three-dimensional effect between traditional brackets and Damon self- ligating brackets on the arch during non-extraction treatment. METHODS: Forty-five patients with non-extraction treatment were included in this study. The patients were randomly divided into 3 groups. Patients in group A were treated with traditional brackets and Nickel titanium wire. Patients in group B were treated with Damon 3mx brackets and Cu-NiTi wire. Patients in group C were treated with traditional brackets and Cu-NiTi wire...
April 2018: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Ya Zhang, Yi Zhang, Qin Jiang, Hua-Qiao Wang, Liang-Xing Qiu, Chao Wang
PURPOSE: To evaluate the biomechanical effect of arch wire deformation, height of micro-implant and lever-arm on movement of the maxillary anterior teeth in the lingual retraction force system. METHODS: Nonlinear 3-D finite element model of lingual orthodontic force system with micro-implant was constructed. When the arch-wire was set to be flexible body and rigid body, lingual retraction force system using sliding mechanism, the height of micro-implant and lever-arm was 0, 3, 5, 7 mm to alveolar ridge crest of the middle point of maxillary second premolars and maxillary first molars...
April 2018: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
Pawel Rynio, Arkadiusz Kazimierczak, Tomasz Jedrzejczak, Piotr Gutowski
Thoracic endovascular aortic repair (TEVAR) is an established treatment option, although some anatomical challenges require a through-and-through wire technique, and subsequently transapical access via minithoracotomy can be required. It is clear that an objective tool to facilitate decision-making is needed. A 3D print of a severely angulated aortic arch was used as a template to advance a stent graft, and this was achieved after pulling the top of the wire. This simulation assisted in decision-making relating to transapical access with a wire externalization...
August 13, 2018: Annals of Vascular Surgery
Yan Wang, Chang Liu, Fan Jian, Grant T McIntyre, Declan T Millett, Joy Hickman, Wenli Lai
BACKGROUND: Initial arch wires are the first arch wires to be inserted into the fixed appliance at the beginning of orthodontic treatment and are used mainly for the alignment of teeth by correcting crowding and rotations. With a number of different types of orthodontic arch wires available for initial tooth alignment, it is important to understand which wire is most efficient, as well as which wires cause least amount of root resorption and pain during the initial aligning stage of treatment...
July 31, 2018: Cochrane Database of Systematic Reviews
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