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European Journal of Orthodontics

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https://www.readbyqxmd.com/read/28637273/gingival-recession-in-mandibular-incisors-and-symphysis-morphology-a-retrospective-cohort-study
#1
Katarina Mazurova, Jean-Baptiste Kopp, Anne Marie Renkema, Nikolaos Pandis, Christos Katsaros, Piotr S Fudalej
Objective: To evaluate if the morphology of the mandibular symphysis is associated with the development of gingival recession. Materials and methods: A cohort of 177 patients was followed longitudinally for up to 5 years post-treatment. Based on the width of the symphysis, participants were divided into three groups: narrow (n = 57); average (n = 63), and wide symphysis (n = 57). Morphology of the symphysis and inclination of incisors were measured on lateral cephalometric radiographs before treatment (Ts), at the end of treatment (T0) and 5 years after treatment (T5)...
June 15, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28633359/does-long-term-intraoral-service-affect-the-mechanical-properties-and-elemental-composition-of-multistranded-wires-of-lingual-fixed-retainers
#2
Spiros Zinelis, Nikolaos Pandis, Youssef S Al Jabbari, George Eliades, Theodore Eliades
Purpose: The aim of this study was to evaluate the elemental and mechanical alterations of stainless steel (SS) multistranded orthodontic wires used in fixed retention after intraoral ageing. Materials and Methods: Two types of 0.022-inch, seven-stranded wires, Lingual Retainer Wire (LRW) and Tru-Chrome (TCH), from the same manufacturer (Rocky Mountain Orthodontics, Denver, Colo, USA) were tested. Thirty-three samples from LRW group and thirty-seven from TCH were collected, whereas three unused wires from each package were used as controls...
June 15, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28605465/beni-solow-award-2016
#3
(no author information available yet)
No abstract text is available yet for this article.
June 10, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28591765/corticotomy-affects-both-the-modus-and-magnitude-of-orthodontic-tooth-movement
#4
Carlalberta Verna, Paolo Maria Cattaneo, Michel Dalstra
Objective: To analyze whether the decreased bone density due to the manipulation of bone remodeling rate has an influence on the type of the planned tooth movement. Materials and methods: A finite element model of a lower incisor has been developed. The density of the alveolar bone surrounding the tooth has been assumed to simulate the one occurring after corticotomy to increase tooth movement rate. Moment-to-force ratios corresponding to three different types of movements have been simulated; uncontrolled tipping, translation, and root movement...
June 7, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28575327/interpreting-weightings-of-the-peer-assessment-rating-index-and-the-discrepancy-index-across-contexts-on-chinese-patients
#5
Siqi Liu, Heesoo Oh, David William Chambers, Tianmin Xu, Sheldon Baumrind
Objective: Determine optimal weightings of Peer Assessment Rating (PAR) index and Discrepancy Index (DI) for malocclusion severity assessment in Chinese orthodontic patients. Methods: Sixty-nine Chinese orthodontists assessed a full set of pre-treatment records from a stratified random sample of 120 subjects gathered from six university orthodontic centres. Using professional judgment as the outcome variable, multiple regression analyses were performed to derive customized weighting systems for the PAR index and DI, for all subjects and each Angle classification subgroup...
June 2, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28575212/effectiveness-of-extraction-of-primary-canines-for-interceptive-management-of-palatally-displaced-permanent-canines-a-systematic-review-and-meta-analysis
#6
Ameirah Saeed Alyammahi, Eleftherios G Kaklamanos, Athanasios E Athanasiou
Background: Although extraction of primary canines in the mixed dentition has been suggested as a measure to prevent impaction of palatally displaced permanent canines (PDCs), the relevant evidence has been inconclusive. Objective: To assess the effectiveness of this practice and investigate the quality of the evidence. Search methods: Search without restrictions in 15 databases and hand searching until April 2017. Selection criteria: Randomized clinical trials comparing extraction of primary canines in the mixed dentition to no treatment...
June 1, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28549122/performance-of-hawley-type-retainers-a-systematic-review-of-randomized-clinical-trials
#7
Wafa Jaber Al Rahma, Eleftherios G Kaklamanos, Athanasios E Athanasiou
No abstract text is available yet for this article.
May 26, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28531341/intra-observer-reliability-and-agreement-of-manual-and-digital-orthodontic-model-analysis
#8
Vasiliki Koretsi, Linda Tingelhoff, Peter Proff, Christian Kirschneck
Background and aim: Digital orthodontic model analysis is gaining acceptance in orthodontics, but its reliability is dependent on the digitalisation hardware and software used. We thus investigated intra-observer reliability and agreement / conformity of a particular digital model analysis work-flow in relation to traditional manual plaster model analysis. Materials and methods: Forty-eight plaster casts of the upper/lower dentition were collected. Virtual models were obtained with orthoX®scan (Dentaurum) and analysed with ivoris®analyze3D (Computer konkret)...
May 22, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28520860/growing-patients-with-duchenne-muscular-dystrophy-longitudinal-changes-in-their-dentofacial-morphology-and-orofacial-functional-capacities
#9
Fabienne Egli, Sébastien Botteron, Catherine Morel, Stavros Kiliaridis
Aim: The aim of this study was to describe the longitudinal changes in facial morphology, dental arch alterations and oral functional capacities that occur in growing patients with Duchenne muscular dystrophy (DMD) in order to identify the effects of the progression of the disease. Subjects and Methods: Twelve DMD patients (6.5-17.5 years of age) and 12 matched controls were screened on two different occasions (T1 and T2), 2 years apart. Dental casts, lateral cephalometric radiographs, maximal posterior bite force and labial force were measured to determine changes in their functional capacities and dentofacial morphology...
May 17, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28505317/comparative-assessment-of-conventional-and-light-curable-fluoride-varnish-in-the-prevention-of-enamel-demineralization-during-fixed-appliance-therapy-a-split-mouth-randomized-controlled-trial
#10
Mandar Shah, Ganesh Paramshivam, Anurag Mehta, Surjit Singh, Ankita Chugh, Anil Prashar, Vinay Kumar Chugh
Objective: To evaluate the effects of single application of a conventional versus light-curable fluoride varnish (LCFV) on prevention of enamel demineralization during fixed orthodontic treatment over a 4 month period. Design: The research was designed as a split-mouth, randomized control trial (RCT). Methods: Twenty-two patients requiring fixed orthodontic treatment with premolar extractions were included in the RCT. In each patient, two diagonal quadrants (i...
May 13, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28486694/differential-microrna-expression-in-cultured-palatal-fibroblasts-from-infants-with-cleft-palate-and-controls
#11
Christian Schoen, Jeffrey C Glennon, Shaghayegh Abghari, Marjon Bloemen, Armaz Aschrafi, Carine E L Carels, Johannes W Von den Hoff
Background: The role of microRNAs (miRNAs) in animal models of palatogenesis has been shown, but only limited research has been carried out in humans. To date, no miRNA expression study on tissues or cells from cleft palate patients has been published. We compared miRNA expression in palatal fibroblasts from cleft palate patients and age-matched controls. Material and Methods: Cultured palatal fibroblasts from 10 non-syndromic cleft lip and palate patients (nsCLP; mean age: 18 ± 2 months), 5 non-syndromic cleft palate only patients (nsCPO; mean age: 17 ± 2 months), and 10 controls (mean age: 24 ± 5 months) were analysed with next-generation small RNA sequencing...
May 9, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28486682/do-different-maxillary-expansion-appliances-influence-the-outcomes-of-the-treatment
#12
Muteb Algharbi, Farhan Bazargani, Lillemor Dimberg
Background and objectives: There is no consensus in the literature regarding which rapid maxillary expansion (RME) design or activation rate benefits the patients the most. Therefore, the primary aim of this systematic review was to see whether there is a difference in the skeletal and dentoalveolar effects of different RME appliances in children and growing adolescents. The secondary aim was to see whether these effects are different when using different activation protocols for these appliances...
May 9, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28486586/open-versus-closed-surgical-exposure-of-palatally-impacted-maxillary-canines-comparison-of-the-different-treatment-outcomes-a-systematic-review
#13
Dimitrios Sampaziotis, Ioannis A Tsolakis, Elias Bitsanis, Apostolos I Tsolakis
Objective: This study aims to compare the effectiveness of two different canine exposure techniques (open and closed) regarding periodontal outcomes, duration of surgical treatment and canine's eruption, patient's inconvenience, aesthetics, and orthodontic treatment complications. Search methods: Electronic database searches of published and unpublished literature were performed. The reference lists of eligible studies were hand searched for additional studies. Selection criteria: Randomized clinical trials (RCTs), quasi-randomized clinical trials (Q-RCTs) and non-randomized trials of prospective and retrospective design with patients of any age that compared group with palatally impacted canines treated by open exposure to a similar group treated by closed exposure technique were selected...
May 9, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28472259/speech-and-orthodontic-appliances-a-systematic-literature-review
#14
Junyu Chen, Jia Wan, Lun You
No abstract text is available yet for this article.
May 3, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28472453/evaluating-low-level-laser-therapy-effect-on-reducing-orthodontic-pain-using-two-laser-energy-values-a-split-mouth-randomized-placebo-controlled-trial
#15
Mohammad Moaffak A AlSayed Hasan, Kinda Sultan, Omar Hamadah
No abstract text is available yet for this article.
May 2, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28472275/dental-age-comparison-in-patients-born-with-unilateral-cleft-lip-and-palate-to-a-control-sample-using-demirjian-and-willems-methods
#16
Nabeel Almotairy, Marie Pegelow
Objectives: To determine and compare the differences in dental age (DA) and chronological age (CA) of Demirjian and Willems methods in 9- to 11-year-old Caucasian boys and girls born with non-syndromic unilateral cleft lip and palate (NSUCLP) to an age-matched control group. Analysis of the results is undertaken to determine whether there are differences between gender, groups, and methods. Materials and methods: Dental panoramic tomograph (DPT) of 108 children with NSUCLP aged from 8...
May 2, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28453722/accuracy-of-mdct-and-cbct-in-three-dimensional-evaluation-of-the-oropharynx-morphology
#17
Hui Chen, Maureen van Eijnatten, Ghizlane Aarab, Tim Forouzanfar, Jan de Lange, Paul van der Stelt, Frank Lobbezoo, Jan Wolff
Objective: To assess the accuracy of five different computed tomography (CT) scanners for the evaluation of the oropharynx morphology. Methods: An existing cone-beam computed tomography (CBCT) data set was used to fabricate an anthropomorphic phantom of the upper airway volume that extended from the uvula to the epiglottis (oropharynx) with known dimensions (gold standard). This phantom was scanned using two multi-detector row computed tomography (MDCT) scanners (GE Discovery CT750 HD, Siemens Somatom Sensation) and three CBCT scanners (NewTom 5G, 3D Accuitomo 170, Vatech PaX Zenith 3D)...
April 27, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28453618/long-term-effects-of-class-ii-herbst-treatment-on-the-pharyngeal-airway-width
#18
Christoph Drosen, Niko Christian Bock, Julia von Bremen, Hans Pancherz, Sabine Ruf
Objective: The aim was to assess the long-term effects of Class II malocclusion treatment with the Herbst appliance on the pharyngeal airway (PA) width in comparison to untreated individuals with Classes I and II malocclusion. Methods: Lateral cephalometric radiographs of 13 male Class II patients from before (T1) and after (T2) treatment with the Herbst appliance as well as after the end of growth (T3) were retrospectively analyzed and compared to two untreated age- and gender-matched samples with Class I (n = 13) or Class II (n = 13) malocclusion...
April 27, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28449060/the-influence-of-miniscrew-insertion-torque
#19
Melissa V Nguyen, John Codrington, Lloyd Fletcher, Craig W Dreyer, Wayne J Sampson
Objective: The aim of this in vitro study was to evaluate the progressive development of surface microdamage produced following the insertion of orthodontic miniscrews (OMs) into 1.5 mm thick porcine tibia bone using maximum insertion torque values of 12 Ncm, 18 Ncm, and 24 Ncm. Methods: Aarhus OMs (diameter 1.5 mm; length 6 mm) were inserted into 1.5 mm porcine bone using a torque limiting hand screwdriver set at 12 Ncm, 18 Ncm, and 24 Ncm. A custom rig equipped with a compression load cell was used to record the compression force exerted during manual insertion...
April 24, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28444179/a-novel-method-for-superimposition-and-measurements-on-maxillary-digital-3d-models-studies-on-validity-and-reliability
#20
Niels Ganzer, Ingalill Feldmann, Per Liv, Lars Bondemark
Background: Serial 3D models can be used to analyze changes, but correct superimposition is crucial before measurements can be assessed. Earlier studies show that every palatal structure changes due to growth or treatment. Here, we describe a new method that uses an algorithm-based analysis to perform superimpositions and measurements in maxillary 3D models. This method can be used to identify deformations. In a second step, only unchanged areas are used for superimposition. Objectives: This study investigates the validity and reliability of this novel method...
April 22, 2017: European Journal of Orthodontics
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