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European Journal of Orthodontics

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https://www.readbyqxmd.com/read/28531341/intra-observer-reliability-and-agreement-of-manual-and-digital-orthodontic-model-analysis
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/28444165/proinflammatory-mediators-related-to-orthodontically-induced-periapical-root-resorption-in-rat-mandibular-molars
#14
Yoshiro Matsumoto, Siripen Sringkarnboriboon, Takashi Ono
Objectives: The early phase of orthodontic tooth movement involves acute inflammatory response that may induce bone resorption. The aim of this study was to localize and quantify cells in the periodontium expressing proinflammatory mediators during orthodontically induced periapical root resorption of the rat mandibular molars. Materials and methods: The levels of proinflammatory cytokines interleukin-1 (IL-1) α and β, tumor necrosis factor-α (TNF-α), inflammatory enzymes cyclooxygenase (COX) 1 and 2, and their product prostaglandin E2 (PGE2) in the root resorption site were compared to those in the corresponding area of the untreated periodontal ligament (PDL) of physiologically drifting teeth...
April 22, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28430896/evidence-of-secular-trend-in-mandibular-pubertal-growth
#15
Raphael Patcas, Daniel B Wiedemeier, Goran Markic, Philipp Beit, Heidi Keller
Background: During puberty, mandibular growth follows a growth curve comparable to somatic growth. This study aimed to review the relationship between mandibular pubertal peak height velocity (PHV) and skeletal age, and to investigate the possibility of a secular trend. Methods: Retrospective analysis was performed of two historical craniofacial growth studies (Denver Growth Study; observational time: 1943-1965, and Zurich Growth Study; observational time: 1982-1984) of healthy untreated subjects...
April 20, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28430887/measurement-of-forces-and-moments-around-the-maxillary-arch-for-treatment-of-a-simulated-lingual-incisor-and-high-canine-malocclusion-using-straight-and-mushroom-archwires-in-fixed-lingual-appliances
#16
Brandon Owen, Geoffry Gullion, Giseon Heo, Jason P Carey, Paul W Major, Dan L Romanyk
Introduction: An Orthodontic SIMulator (OSIM) was used to investigate the propagation of forces and moments around a simulated archform for a gingival displaced canine and lingual displaced lateral incisor using fixed lingual orthodontic appliances. Methods: In-Ovation L self-ligating lingual brackets were bonded to anatomically shaped teeth on the OSIM, and the teeth were positioned such that a G4 NiTi 0.016" large maxillary mushroom archwire could be ligated in passive position...
April 20, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28430890/acceptability-comparison-between-hawley-retainers-and-vacuum-formed-retainers-in-orthodontic-adult-patients-a-single-centre-randomized-controlled-trial
#17
Mohammed Saleh, Mohammad Y Hajeer, Dieter Muessig
Background: Hawley retainers (HRs) and vacuum formed retainers (VFRs) are the most commonly used removable retainers in the orthodontic practice. Patients' cooperation in wearing these appliances is affected by the levels of discomfort and oral impairment. The evidence regarding their acceptably among orthodontic patients is limited. Aims: To compare the acceptability of HRs and VFRs over a 6-month period in a group of fixed orthodontic patients. Trial Design: Two-arm parallel-group randomized controlled trial...
April 19, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28402521/efficiency-of-piezosurgery-technique-in-miniscrew-supported-en-masse-retraction-a-single-centre-randomized-controlled-trial
#18
Nilüfer Irem Tunçer, Ayça Arman-Özçirpici, Bahar Füsun Oduncuoglu, Jülide Sedef Göçmen, Alpdogan Kantarci
No abstract text is available yet for this article.
April 11, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28402422/introduction-and-assessment-of-orthognathic-information-clinic
#19
Nina Bergkulla, Heidi Hänninen, Outi Alanko, Martti Tuomisto, Jukka Kurimo, Aimo Miettinen, Anna-Liisa Svedström-Oristo, Susan Cunningham, Timo Peltomäki
Background/Objectives: Orthognathic treatment is routine practice to rehabilitate severe malocclusions and dentofacial deformities. Because orthognathic treatment is elective, patient's involvement in deciding whether to proceed with treatment is vital. Interaction and communication between patient and treating team plays a key role in achieving post-treatment satisfaction. To achieve satisfaction, an orthognathic 'information clinic' for prospective orthognathic patients was established at Oral and Maxillofacial Unit, Tampere University Hospital, Finland...
April 11, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28383705/an-exploratory-quality-assessment-of-orthodontic-clinical-guidelines-using-the-agree-ii-instrument
#20
Tasneem Tejani, Suhaym Mubeen, Jadbinder Seehra, Martyn T Cobourne
Objectives: Clinical guidelines act as a means of assisting clinicians in improving the quality of healthcare provided. We aim to assess the quality of currently available international orthodontic guidelines. Materials and methods: A cross-sectional systematic assessment of orthodontic clinical guidelines was undertaken. A Medline search using the keywords 'guideline', 'orthodontics', and 'dent', and search of specific dental and orthodontic organization websites for orthodontic-related clinical guidelines...
April 5, 2017: European Journal of Orthodontics
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