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European Journal of Orthodontics

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https://www.readbyqxmd.com/read/28064196/understanding-interactions-among-cephalometrics-variables-during-growth-in-untreated-class-iii-subjects
#1
Pietro Auconi, Marco Scazzocchio, Guido Caldarelli, Michele Nieri, James A McNamara, Lorenzo Franchi
OBJECTIVE: The aim of the present study was to apply a computational method commonly used in data mining discipline, classification trees (CTs), to evaluate the growth features in untreated Class III subjects. MATERIALS AND METHODS: CT was applied to data from 91 untreated Class III subjects (48 females and 43 males) and compared with the results of discriminant analysis (DA). For all subjects, lateral cephalograms were available at T1 (mean age 10.4 ± 2.0 years) and at T2 (mean age 15...
January 7, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28057701/a-prospective-10-year-follow-up-dental-cast-study-of-patients-with-obstructive-sleep-apnoea-snoring-who-use-a-mandibular-protruding-device
#2
Anette M C Fransson, Agata Kowalczyk, Göran Isacsson
OBJECTIVES: This 10-year prospective study aimed to measure and evaluate the teeth position and occlusion following 10-year nocturnal use of a mandibular protruding device (MPD) in subjects with obstructive sleep apnoea (OSA) or snoring. MATERIALS AND METHODS: Seventy-seven consecutive patients diagnosed with OSA/snoring were treated with an MPD. Fabrication of dental casts with jaw registration indexes in the intercuspal position was carried out at baseline and at follow-up, a construction bite was made, and an MPD was fitted...
January 5, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28057700/transverse-relationship-of-permanent-molars-after-crossbite-correction-in-deciduous-dentition
#3
Caterina Masucci, Linda Cipriani, Efisio Defraia, Lorenzo Franchi
OBJECTIVE: To evaluate the transverse relationships of the first permanent molars after the correction of posterior crossbite performed during the deciduous dentition with two different treatment protocols. MATERIALS/METHODS: Ninety patients (40 males and 50 females) with posterior crossbite were treated during the deciduous dentition with either a removable expansion plate (RP group, 60 patients) or rapid maxillary expander (RME group, 30 patients). The dental casts before treatment (T0, mean age 5...
January 5, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28040681/asymmetric-molars-mesial-rotation-and-mesialization-in-unilateral-functional-posterior-crossbite-and-implications-for-interceptive-treatment-in-the-mixed-dentition
#4
Ingrid Tonni, Alessandra Iannazzi, Maria Grazia Piancino, Fulvia Costantinides, Domenico Dalessandri, Corrado Paganelli
INTRODUCTION: Symmetric transverse expansion is the main outcome of the early treatment in subjects with unilateral functional posterior crossbite. The aim of this study was to analyse mesial rotation and mesialization of upper first molars as sagittal parameters to be corrected in the treatment of these patients during the mixed dentition. METHODS: Digital dental cast measurements (rotation and mesialization) were performed in a sample of 48 subjects with unilateral posterior crossbite (UPXB; 19 males and 29 females, mean age 10...
December 31, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27999121/reliability-of-upper-pharyngeal-airway-assessment-using-dental-cbct-a-systematic-review
#5
REVIEW
Jason N Zimmerman, Janson Lee, Benjamin T Pliska
BACKGROUND: Upper airway analysis is an often-cited use of cone beam computed tomography (CBCT) imaging in orthodontics. However, the reliability of this process in a clinical setting is largely unknown. OBJECTIVE: Our objective was to systematically review the literature to evaluate the reliability of upper pharyngeal airway assessment using dental CBCT. SEARCH METHODS: MEDLINE, EMBASE, Web of Science, and Google Scholar were searched through June 2015...
December 20, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27999120/the-effect-of-mandible-advancement-splints-in-mild-moderate-and-severe-obstructive-sleep-apnea-the-need-for-sleep-registrations-during-follow-up
#6
Tuula Palotie, Siru Riekki, Antti Mäkitie, Adel Bachour, Sirpa Arte, Leif Bäck
OBJECTIVE AND DESIGN: Our aim was to evaluate the effect of mandible advancement splint (MAS) in mild, moderate, and severe obstructive sleep apnea (OSA). We also determined, if and in which OSA-groups the adequate forward movement in MAS could be quantified without sleep registration for different OSA levels. A retrospective study. SETTINGS: The effect of MAS was measured with clinical methods and by sleep registration. PARTICIPANTS: The series consisted of 103 patients, 75 males and 28 females (mean age 52 years) suffering from mild (32 per cent), moderate (32 per cent), or severe (36 per cent) OSA, who were treated with MAS at Helsinki University Hospital, Finland during the years 2011-2012...
December 20, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27940444/geometric-morphometric-analysis-of-craniofacial-growth-between-the-ages-of-12-and-14-in-normal-humans
#7
Alexis Katsadouris, Demetrios J Halazonetis
AIM: There is great variation of growth among individuals. The question whether patients with different skeletal discrepancies grow differently is biologically interesting but also important in designing clinical trials. The aim of the present study was to evaluate whether growth direction depends on the initial craniofacial pattern. SUBJECTS AND METHOD: The sample consisted of 350 lateral cephalograms of 175 subjects (91 females and 84 males) followed during normal growth without any orthodontic treatment...
December 10, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27932408/early-responses-of-human-periodontal-ligament-fibroblasts-to-cyclic-and-static-mechanical-stretching
#8
Adamantia Papadopoulou, Anna Iliadi, Theodore Eliades, Dimitris Kletsas
OBJECTIVE: To compare the mechanotransduction caused by cyclic and static mechanical strains in human periodontal ligament fibroblasts (hPDLFs) cultured under identical conditions. MATERIALS AND METHODS: hPDLFs, originating from the same donors, were exposed either to cyclic or to static tensile strain using specially designed devices and under identical culture conditions. Activation of all members of mitogen-activated protein kinases (MAPKs) was monitored by western immunoblot analysis...
December 8, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27932407/torque-differences-according-to-tooth-morphology-and-bracket-placement-a-finite-element-study
#9
Spyridon N Papageorgiou, Iosif Sifakakis, Ludger Keilig, Raphael Patcas, Stefan Affolter, Theodore Eliades, Christoph Bourauel
INTRODUCTION: Torque of the maxillary incisors is essential in esthetics and proper occlusion, while torque expression is influenced by many factors. The aim of this finite element study was to assess the relative effect of tooth morphology, bracket prescription, and bracket positioning on tooth displacement and developed stresses/strains after torque application. METHODS: A three-dimensional upper right central incisor with its periodontal ligament (PDL) and alveolus was modelled...
December 8, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27932406/diagnostic-concordance-between-skeletal-cephalometrics-radiograph-based-soft-tissue-cephalometrics-and-photograph-based-soft-tissue-cephalometrics
#10
Riccardo Nucera, Antonino Lo Giudice, Mirea Bellocchio, Paola Spinuzza, Alberto Caprioglio, Giancarlo Cordasco
OBJECTIVE: This study aims to investigate the diagnostic concordance between skeletal cephalometrics and soft-tissue cephalometrics in identifying facial lower third characteristics. MATERIALS AND METHODS: We compared a skeletal cephalometric analysis (SCA) to a soft-tissue analysis performed on cephalometric radiographs (rSTCA) and to one performed on profile photograph (pSTCA). Ninety-six pre-treatment digital lateral cephalometric radiographs and 96 digital profile photographs were randomly selected for this study (patients' mean age: 18...
December 8, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27932405/dentoskeletal-effects-of-oral-appliance-wear-in-obstructive-sleep-apnoea-and-snoring-patients
#11
Giulio Alessandri-Bonetti, Vincenzo D'Antò, Chiara Stipa, Roberto Rongo, Serena Incerti-Parenti, Ambrosina Michelotti
OBJECTIVES: To evaluate the dentoskeletal changes associated with long-term and continuous mandibular advancement device (MAD) use in sleep-related breathing disorder patients. METHODS: Cephalometric measurements and three-dimensional model analysis were performed at baseline and after 3.5 ± 1.1 years in 20 snoring and obstructive sleep apnoea patients treated with the Silensor® appliance. Intra-group differences were compared using paired t-test or Wilcoxon signed-rank test...
December 8, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27927682/interceptive-orthodontics-a-practical-guide-to-occlusal-management
#12
Stefan Abela
No abstract text is available yet for this article.
December 7, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27864320/three-questionnaires-to-assess-the-perception-of-fixed-orthodontic-therapy-before-during-and-after-treatment-validity-and-reliability
#13
Yassir A Yassir, Grant T McIntyre, David R Bearn
BACKGROUND/OBJECTIVE: To assess the validity and reliability of a series of three questionnaires for the quantification of patient perception of fixed appliance orthodontic treatment. SUBJECTS AND METHODS: The study was carried out at the University of Dundee with content and face validity being assessed using proformas. Initially ten experts (Orthodontic Specialists) assessed content validity with 11 professionals (seven Orthodontic Specialists and four Postgraduates) and 20 patients assessing face validity...
November 17, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/26888831/disease-and-functional-loading-effect-on-the-structural-conformation-and-mechanical-properties-of-the-mandibular-condyle-in-a-transgenic-rheumatoid-arthritis-murine-model-an-experimental-study
#14
Despina Koletsi, Theodore Eliades, Spiros Zinelis, Christoph Bourauel, George Eliades
AIM: The aim of the present study was to investigate the effect of rheumatoid arthritis (RA) and functional loading through diet modification on the structural conformation and the mechanical properties of the mandibular condyle in a transgenic mouse model and compare to healthy littermates. MATERIALS AND METHODS: Four-week-old hybrid male mice from mixed background CBAxC57BL/6 were used. Four groups of animals were formed consisting of five animals each, either presenting RA (transgenic line hTNF 197), or wild-type (control), half receiving ordinary (hard) diet and half receiving soft diet within each category...
December 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/26843516/three-dimensional-digital-cast-analysis-of-the-effects-produced-by-a-passive-self-ligating-system
#15
Megan B Lineberger, Lorenzo Franchi, Lucia H S Cevidanes, Luis T Huanca Ghislanzoni, James A McNamara
AIM: To evaluate maxillary and mandibular dental arch changes induced by a passive self-ligating system by analysing digital dental casts. SUBJECTS AND METHODS: A sample of 25 growing patients (16 females and 9 males, mean age 12.8 years) treated with passive self-ligating brackets was compared to a sample of 25 untreated controls (15 females and 10 males, mean age 13.4 years). Sixty three-dimensional points were digitised on the maxillary and mandibular pre- and post-treatment virtual models to evaluate differences in the transverse and antero-posterior arch dimensions and in the torque values of representative anterior and posterior teeth...
December 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/26823371/association-between-posterior-crossbite-skeletal-and-muscle-asymmetry-a-systematic-review
#16
REVIEW
Giorgio Iodice, Gianluca Danzi, Roberta Cimino, Sergio Paduano, Ambra Michelotti
BACKGROUND: Of the various malocclusions, unilateral posterior crossbite has often been associated to skeletal and muscular asymmetrical growth and function. OBJECTIVE: To assess, by systematically reviewing the literature, the association between unilateral posterior crossbite (UPCB) and morphological and/or functional asymmetries (i.e. skeletal, masticatory muscle electromyographic (EMG) performance, bite force, muscle thickness, and chewing cycle asymmetries)...
December 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/26739558/connecting-the-new-with-the-old-modifying-the-combined-application-of-procrustes-superimposition-and-principal-component-analysis-to-allow-for-comparison-with-traditional-lateral-cephalometric-variables
#17
Hans L L Wellens, Anne M Kuijpers-Jagtman
OBJECTIVE: The combination of generalized Procrustes superimposition (GPS) and principal component analysis (PCA) has been hypothesized to solve some of the problems plaguing traditional cephalometry. This study demonstrates how to establish the currently unclear relationship between the shape space defined by the first two principal components to the ANB angle, Wits appraisal, and GoGnSN angle, and to elucidate possible clinical applications thereof. METHODS: Digitized landmarks of 200 lateral cephalograms were subjected to GPS and PCA, after which the sample mean shape was deformed along/parallel to principal components (PC) 1 and 2, recording the ANB, Wits, and GoGnSN value at each location...
December 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/26728036/immediate-versus-delayed-loading-comparison-of-primary-stability-loss-after-miniscrew-placement-in-orthodontic-patients-a-single-centre-blinded-randomized-clinical-trial
#18
Marco Migliorati, Sara Drago, Fabio Gallo, Leonardo Amorfini, Domenico Dalessandri, Chiara Calzolari, Stefano Benedicenti, Armando Silvestrini-Biavati
INTRODUCTION: The aim of this randomized clinical trial was to compare torque recordings at insertion time and 1 week post-placement between immediately loaded orthodontic miniscrews and an unloaded control group. TRIAL DESIGN: This RCT was designed as parallel with an allocation ratio of 1:1. METHODS: Eligibility criteria to enroll patients were: needs of fixed orthodontic treatment, no systemic disease, absence of using drugs altering bone metabolism...
December 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/26711626/reporting-quality-of-randomized-controlled-trial-abstracts-presented-at-european-orthodontic-society-congresses
#19
Fang Hua, Tanya Walsh, Anne-Marie Glenny, Helen Worthington
OBJECTIVES: To assess the reporting quality of randomized controlled trial (RCT) abstracts presented at the European Orthodontic Society (EOS) congresses, investigate any improvement after the release of CONSORT (CONsolidated Standards Of Reporting Trials) for Abstracts guidelines, and identify factors associated with reporting quality. METHODS: Abstract books of the 2003-07 (Pre-CONSORT period) and 2010-14 (Post-CONSORT period) EOS congresses were obtained from the official website of European Journal of Orthodontics...
December 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/26709143/the-psycho-social-impact-of-malocclusions-and-treatment-expectations-of-adolescent-orthodontic-patients
#20
Eugene Twigge, Rachel M Roberts, Lisa Jamieson, Craig W Dreyer, Wayne J Sampson
OBJECTIVES: To evaluate the short- and long-term orthodontic treatment (OT) expectations, malocclusion severity, and oral health-related quality of life (OHRQoL) status of adolescent patients using qualitative and quantitative methodology. MATERIALS AND METHODS: Adolescents (n = 105; 42 males and 63 females) aged between 12 and 17 years participated in this interview and questionnaire-based study. The Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ) and the Oral Impacts on Daily Performances (OIDP) scale evaluated OHRQoL status...
December 2016: European Journal of Orthodontics
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