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European Journal of Orthodontics

Diana Mortensen, Sotiria Gizani, Olina Salamara, Iosif Sifakakis, Svante Twetman
Objective: To investigate if the alternating current impedance spectroscopy (ACIS) technology could be used to monitor remineralization of post-orthodontic white spot lesions (WSLs) after debonding of fixed orthodontic appliances. Material and methods: The study group consisted of 28 adolescents (aged 12-16 years) with at least two WSLs on their maxillary incisors, canines, or first premolars at debonding. Buccal surfaces (n = 194) were visually examined and scored with modified International Caries Detection and Assessment System (ICDAS) criteria and with the CarieScan Pro device by three examiners according to manufactures manual (test method)...
November 8, 2018: European Journal of Orthodontics
Ashley Phuong, Nathalia Carolina Fernandes Fagundes, Sahar Abtahi, Mary Roduta Roberts, Paul W Major, Carlos Flores-Mir
Objective: A critical analysis of the literature to determine the prevalence and type of emergency/additional appointments, and discomfort levels associated with fixed Class II correctors. Methods: Studies examining patient's sources of discomfort or emergency appointments associated with compliance-free Class II correctors were included. Comprehensive searches up to July 2018 were conducted using the following databases: MEDLINE (OvidSP), PubMed, Web of Science, and Embase...
October 24, 2018: European Journal of Orthodontics
Annelore De Grauwe, Irem Ayaz, Sohaib Shujaat, Simon Dimitrov, Logan Gbadegbegnon, Bart Vande Vannet, Reinhilde Jacobs
Background: Taking into account radiation doses, safety, and protection, we highlighted the features in which cone-beam computed tomography (CBCT) can offer an advantage compared to the conventional two-dimensional imaging in paediatric dentistry before orthodontic treatment. Objective: The aim of this article was to conduct a systematic review to assess the diagnostic efficacy of CBCT in the paediatric population at a pre-orthodontic phase. Search methods: MEDLINE via PubMed was searched to identify all peer-reviewed articles potentially relevant to the review until 1 July 2018...
October 22, 2018: European Journal of Orthodontics
Peter Proff, Christian Kirschneck
The innovative study presented by Huang and co-workers in this issue of the European Journal of Orthodontics is one of the first giving insight into the mostly disregarded world of non-coding ribonucleic acids in orthodontics. In other fields of science non-coding ribonucleic acids have been shown to play a major role in the regulation of cell metabolism as well as the aetiology of diseases such as cancer, Alzheimer's disease, and periodontitis. Their pilot study on the possible function of differentially expressed long non-coding ribonucleic acids during mechanical compression of periodontal ligament stem cells, as well as methodological approach of whole-transcriptome sequencing with bioinformatory analyses, provides ample possibilities for future basic orthodontic research, which will hopefully greatly expand our knowledge of tooth movement regulation...
October 13, 2018: European Journal of Orthodontics
Margitha Björksved, Kristina Arnrup, Rune Lindsten, Anders Magnusson, Anna Lena Sundell, Annika Gustafsson, Farhan Bazargani
Background: Closed and open surgical techniques are two different main approaches to surgical exposure of palatally displaced canines (PDCs). Because there is insufficient evidence to support one technique over the other, there is a need for randomized controlled trials. Objectives: To compare surgery time, complications and patients' perceptions between closed and open surgical techniques in PDCs. Trial design: The trial was a multicentre, randomized, controlled trial with two parallel groups randomly allocated in a 1:1 ratio...
October 13, 2018: European Journal of Orthodontics
Anastasia Bakopoulou, Peter Hoang, Ali Fathi, Matthew Foley, Colin Dunstan, Oyku Dalci, Alexandra K Papadopoulou, M Ali Darendeliler
Objective: The aim of this study was to assess the potential of improving orthodontic miniscrews' (MSs) primary stability in vivo by evaluating the dispersion capacity of an injectable bone graft substitute (iBGS) through a newly designed hollow MS [The Sydney Mini Screw (SMS)] and its integration with the cortical and trabecular bone by using the femur and tibia in a New Zealand rabbit animal model. Methods: In total, 24 MSs were randomly placed in each proximal tibia and femur of 6 New Zealand rabbits with an open surgery process...
October 12, 2018: European Journal of Orthodontics
Norhidayah Mohd Tahir, Wan Nurazreena Wan Hassan, Roslan Saub
Objectives: The aim of this study was to compare vacuum-formed thermoplastic retainers (VFRs) constructed on stone models (VFR-CV) and those constructed on three-dimensional (3D) printed models (VFR-3D) based on patients' perspective and post-treatment stability. Study design: The research was designed as a crossover, randomized control trial. Materials and methods: Subjects comprised patients receiving fixed appliances at a teaching institution and indicated for VFRs...
October 12, 2018: European Journal of Orthodontics
Beral Afacan, Veli Özgen Öztürk, Mine Geçgelen Cesur, Timur Köse, Nagihan Bostanci
Objective: To compare effect of two different orthodontic forces on maxillary canine distalization via evaluation of 30 analytes including cytokines, growth factors, and chemokines in gingival crevicular fluid (GCF) obtained from tension and compression sites. Design: Longitudinal, split-mouth, randomized controlled trial. Methods: The upper right and left canines were randomly distalized by a continuous force of either 75 or 150 g, in 15 individuals with Class II division 1 malocclusion...
October 12, 2018: European Journal of Orthodontics
Pawel Plakwicz, Joanna Abramczyk, Julita Wojtaszek-Lis, Jolanta Sajkowska, Barbara Warych, Katarzyna Gawron, Tomasz Burzykowski, Malgorzata Zadurska, Ewa Monika Czochrowska, Andrzej Wojtowicz, Renata Górska, Krzysztof Kukula
Objectives: The aim of this study was to evaluate characteristics of patients with unilateral transmigration of a mandibular canine in the largest study group presented until now. Materials and methods: The study group consisted of 93 patients with unilateral transmigration of mandibular canine; the control group included 85 non-affected patients. Type of transmigration, status of deciduous and permanent canines, prevalence of missing teeth, class of occlusion, and space conditions were assessed to draw comparisons between groups...
October 6, 2018: European Journal of Orthodontics
Matteo Rozzi, Manuela Mucedero, Chiara Pezzuto, Roberta Lione, Paola Cozza
Objectives: The aim of the study was to evaluate the curve of Spee (COS) stability in patients treated with continuous archwires with different vertical patterns. Methods: The study sample consisted of 60 patients (28 males, 32 females; mean age 19.8 ± 1.4 years) presenting with COS depth of at least2 mm at baseline. For each subject, lateral cephalograms and dental casts were available before treatment (T1), at the end of orthodontic therapy (T2), and 2 years after the end of treatment (T3)...
October 4, 2018: European Journal of Orthodontics
Afroditi Kouli, Alexandros Papagiannis, Nikoleta Konstantoni, Demetrios J Halazonetis, Dimitrios Konstantonis
Objectives: To evaluate the hard tissue and facial profile changes in matched extraction and non-extraction Class I patients by the use of geometric morphometrics. Subjects and Methods: From a parent sample of 542 Class I patients, previously subjected to discriminant analysis, a subsample of 68 borderline cases was obtained, 34 treated with extraction and 34 without extraction of 4 first premolars. Geometric morphometric methods (Procrustes superimposition and Principal Component Analysis) were applied on cephalometric tracings to assess the validity of the discriminant analysis in successfully identifying a morphologically homogeneous group and to evaluate inter- and intra-group skeletal and facial profile shape changes...
September 13, 2018: European Journal of Orthodontics
Laura Krooks, Pertti Pirttiniemi, Mimmi Tolvanen, Georgios Kanavakis, Raija Lähdesmäki, Anna-Sofia Silvola
Objective: To explore the association of facial sagittal and vertical dimensions with aesthetic assessment by three panel groups. Materials and methods: The study population comprised adult individuals from the Northern Finland Birth Cohort 1966 (NFBC1966). A clinical oral examination including digital facial photographs was performed. The study population was divided into subjects with the lowest and highest values in soft tissue measurements in lower anterior facial height percentage (LAFH%) (60 subjects) and antero-posterior jaw relationship [soft tissue A-point, nasion, and B-point (ANB) angle; 60 subjects] and a control group (30 subjects)...
September 11, 2018: European Journal of Orthodontics
Eva Josefsson, Rune Lindsten
Objective: The aim of this study was to evaluate whether implant therapy or orthodontic space closure was the best treatment option for patients with missing maxillary lateral incisors. Subjects and methods: The implant group (I group) consisted of 22 patients aged <26 years who had one or both maxillary lateral incisors substituted by a single implant-supported crown. The space-closure group (SC group) consisted of patients matched with I group patients based on diagnosis, gender, and number...
September 11, 2018: European Journal of Orthodontics
Jason N Zimmerman, Siddharth R Vora, Benjamin T Pliska
Background: Upper airway analysis is an often-cited use of CBCT imaging by orthodontists; however, the reliability of airway measurements using this technology is not fully established. Objective: To determine the intra-examiner and inter-examiner reliability of the complete process of volumetric and cross-sectional area assessments of the upper airway using CBCT imaging. Materials and Methods: Six examiners of varying levels of education and clinical experience performed the steps necessary for airway analysis, including manual orientation, slice and threshold selection and measured nasopharyngeal, oropharyngeal, hypopharyngeal and total upper pharyngeal airway volumes in addition to minimum cross-sectional area on the CBCT images of 10 patients...
September 4, 2018: European Journal of Orthodontics
Theodore Eliades
The publication of the three-paper series on the effects of two slot sizes on treatment parameters in this issue, targets a topic, which has attracted a lot of discussion based primarily on anecdotal evidence. The conclusive evidence contribute to the lack of variation of treatment variables with slot size selection, clarifies one of the traditional beliefs on this issue; several others still hold strong however. This commentary has the objective of highlighting some points, which could be taken into consideration in interpreting the results of this three-part trial...
August 31, 2018: European Journal of Orthodontics
Yiping Huang, Yingying Zhang, Xiaobei Li, Hao Liu, Qiaolin Yang, Lingfei Jia, Yunfei Zheng, Weiran Li
Objective: The role of long non-coding ribonucleic acids (lncRNAs) during orthodontic tooth movement remains unclear. We explored the lncRNA landscape of periodontal ligament stem cells (PDLSCs) subjected to compressive force. Materials and methods: PDLSCs were subjected to static compressive stress (2 g/cm2) for 12 hours. Total RNA was then extracted and sequenced to measure changes in lncRNA and messenger RNA (mRNA) expression levels. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to validate the expression levels of certain lncRNAs...
August 30, 2018: European Journal of Orthodontics
Rosalia Leonardi, Antonino Lo Giudice, Michele Rugeri, Simone Muraglie, Giancarlo Cordasco, Ersilia Barbato
Background and objectives: Some authors have recently postulated the possibility of a unilateral contraction of the palate in patients with crossbite. This study aimed to investigate palatal dimension size and morphology in subjects with functional posterior crossbite and to localize location of the contraction through a 3D analysis procedure. Materials and methods: A study sample (SS) of 35 subjects (mean age 9.2 ± 0.8 years), diagnosed with functional crossbite, and a control sample (CS) of 35 subjects (mean age 9...
September 28, 2018: European Journal of Orthodontics
Moniek W Beerens, Jacob M Ten Cate, Mark J Buijs, Monique H van der Veen
Background: Casein-phosphopeptide-amorphous-calcium-fluoride-phosphate (CPP-ACFP) can remineralize subsurface lesions. It is the active ingredient of MI-Paste-Plus® (MPP). The long-term remineralization efficacy is unknown. Objective: To evaluate the long-term effect of MPP versus a placebo paste on remineralization of enamel after fixed orthodontic treatment over a 12-month period. Design: This trial was designed as a prospective, double-blinded, placebo-controlled RCT...
September 28, 2018: European Journal of Orthodontics
Giuseppina Laganà, Valentina Di Fazio, Valeria Paoloni, Lorenzo Franchi, Paola Cozza, Roberta Lione
Objectives: To assess the morphological shape variations of the palatal vault in Open Bite (OB) growing subjects when compared with a Control Group (CG) by means of Geometric Morphometric Method (GMM). Materials and methods: The OB Group (OBG) consisted of 75 subjects (39 females, 36 males; mean age: 8.5 ± 0.8 years) who were collected retrospectively with the following inclusion criteria: European ancestry, overbite less than 0 mm, mixed dentition stage, prepubertal skeletal maturation (CS1-CS2), hyperdivergent skeletal pattern (SN^GoGn > 37°)...
August 9, 2018: European Journal of Orthodontics
Jasna Primozic, Giuseppe Perinetti, Alexei Zhurov, Stephen Richmond, Maja Ovsenik, Vane Antolic, Jasmina Primozic
Background/Objectives: Since a high prevalence of back anomalies has been reported among subjects with crossbite, the aim was to assess the degree of back symmetry among subjects with (crossbite) and without (control) unilateral functional crossbite during the pre-pubertal growth phase. Methods: A group of 70 subjects (36 boys, 34 girls; 6.8 ± 1.2 years) in the primary or mixed dentition phase were included. Clinical assessment of head posture, shoulder, scapula and hip height were performed with the subject standing, and differences between the left and right side greater than 5 mm recorded...
August 9, 2018: European Journal of Orthodontics
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