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European Journal of Orthodontics

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https://www.readbyqxmd.com/read/28340249/orthodontic-strain-affects-the-hippo-pathway-effector-yap-concomitant-with-proliferation-in-human-periodontal-ligament-fibroblasts
#1
Diana Huelter-Hassler, Pascal Tomakidi, Thorsten Steinberg, Britta A Jung
Objectives: During orthodontic tooth movement (OTM), human periodontal ligament fibroblasts (hPDLFs) sense, and respond to mechanical forces. Since the molecular constituents involved in these processes are not fully elucidated, the objective of the present study was to identify further key molecules of the cellular strain response. Materials and Methods: Primary hPDLFs were strained with a static equiaxial strain of 2.5 per cent for 15 minutes, 1 hour, 6 hours, and 24 hours...
March 17, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28340178/morphometric-covariation-between-palatal-shape-and-skeletal-pattern-in-class-ii-growing-subjects
#2
Valeria Paoloni, Roberta Lione, Francesca Farisco, Demetrios J Halazonetis, Lorenzo Franchi, Paola Cozza
Objectives: To evaluate the patterns of covariation between palatal and craniofacial morphology in Class II subjects in the early mixed dentition by means of geometric morphometrics. Methods: A cross-sectional sample of 85 Class II subjects (44 females, 41 males; mean age 8.7 years ± 0.8) was collected retrospectively according to the following inclusion criteria: European ancestry (white), Class II skeletal relationship, Class II division 1 dental relationship, early mixed dentition, and prepubertal skeletal maturation...
March 14, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28340098/effect-of-fluoride-releasing-resin-composite-in-white-spot-lesions-prevention-a-single-centre-split-mouth-randomized-controlled-trial
#3
Mohannad M Alabdullah, Alaa Nabawia, Mowaffak A Ajaj, Humam Saltaji
Introduction: The objective of this two-arm split-mouth randomized trial, was to evaluate the ability of fluoride-releasing resin composite to prevent demineralization and white spot lesion (WSL) formation, during orthodontic treatment with fixed appliances. Methods: Patients needing comprehensive orthodontic treatment were randomly allocated into two groups, according to the half split-mouth technique. This trial examined a total of 300 teeth in each group: the control group, in which brackets were fixed with a non-fluoride-containing adhesive resin; and the intervention group, in which brackets were fixed with a fluoride-containing adhesive resin...
March 2, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28340027/influence-of-long-term-in-vivo-exposure-debris-accumulation-and-archwire-material-on-friction-force-among-different-types-of-brackets-and-archwires-couples
#4
Uroš Mezeg, Jasmina Primožic
Objective: The aim was to assess the influence of long-term in vivo exposure, debris accumulation and archwire material on static and kinetic friction force among different types of brackets and archwires couples. Material and Methods: Friction testing was performed among four lower incisors' brackets, conventional and self-ligating (SL), coupled with either nickel-titanium or stainless steel archwires, as-received and in vivo exposed in 18 subjects. The friction testing was performed for a sliding distance of 14 mm at a speed of 10 mm/min, with a starting force of 0...
February 28, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339736/extractions-retention-and-stability-the-search-for-orthodontic-truth
#5
Sheldon Peck
Background and objectives: From the beginnings of modern orthodontics, questions have been raised about the extraction of healthy permanent teeth in order to correct malocclusions. A hundred years ago, orthodontic tooth extraction was debated with almost religious intensity by experts on either side of the issue. Sheldon Friel and his mentor Edward H. Angle both had much to say about this controversy. Today, after significant progress in orthodontic practice, similar arguments are being voiced between nonextraction expansionists and those who see the need for tooth extractions in some orthodontic patients...
February 23, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339713/evaluation-of-the-effectiveness-of-intermittent-mechanical-pressure-with-short-loading-duration-new-type-of-intermittent-force-for-orthodontic-treatment
#6
Kento Shoman, Yoshiaki Sato, Eisuke Nishikawa, Yuusuke Kudo, Takaaki Yamamoto, Junichiro Iida
Background: Since it is difficult to precisely control the magnitude of force in orthodontic practice, controlling the duration of force is expected to prevent tissue damage. The use of an actuator as an appliance for intermittent force application is a possible solution for controlling the duration. However, effectiveness of an actuator for controlling the duration is still not clear. Aim: To determine whether a short loading duration of intermittent force has the potential to maintain a sound condition of the capillaries and induce dilation of capillaries, which is a requisite phenomenon for orthodontic tooth movement...
February 22, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339627/validity-and-reliability-of-three-dimensional-palatal-superimposition-of-digital-dental-models
#7
Sameh Talaat, Ahmed Kaboudan, Christoph Bourauel, Nivine Ragy, Katherine Kula, Ahmed Ghoneima
No abstract text is available yet for this article.
February 17, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339645/the-extent-of-root-resorption-and-tooth-movement-following-the-application-of-ascending-and-descending-magnetic-forces-a-prospective-split-mouth-microcomputed-tomography-study
#8
Tiffany Teen Yu Huang, Selma Elekdag-Turk, Oyku Dalci, Mohammed Almuzian, Ersan Ilsay Karadeniz, Selma Elekdag-Turk, Carmen Gonzales, Peter Petocz, Tamer Turk, M Ali Darendeliler
Objective: Various factors have been examined in the literature in an attempt to reduce the incidence and severity of root resorption. The purpose of the present investigation is to test the null hypothesis that there is no difference in relation to force level using gradually increasing (ascending) and decreasing (descending) orthodontic force generated by magnets on the severity of Orthodontically Induced Inflammatory Iatrogenic Root Resorption (OIIRR) and amount of tooth movement. Methods: Twenty maxillary first premolars from 10 patients were subjected to ascending (25-225 g, magnets in attraction) and descending (225 to 25 g, magnets in repulsion) buccal forces using a split mouth design over an 8-week period...
February 16, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28204189/comparing-the-effectiveness-profile-of-pharmacological-interventions-used-for-orthodontic-pain-relief-an-arm-based-multilevel-network-meta-analysis-of-longitudinal-data
#9
Satpal S Sandhu, Hans-Peter Piepho, Harpreet S Khehra
No abstract text is available yet for this article.
February 15, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28200074/roc-surface-assessment-of-the-anb-angle-and-wits-appraisal-s-diagnostic-performance-with-a-statistically-derived-gold-standard-does-normalizing-measurements-have-any-merit
#10
Hans L L Wellens, Ellen A BeGole, Annemarie M Kuijpers-Jagtman
No abstract text is available yet for this article.
February 15, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28204270/short-term-hard-and-soft-tissue-changes-after-mandibular-advancement-surgery-in-class-ii-patients-a-retrospective-cephalometric-study
#11
A S Storms, A Miclotte, L Grosjean, M Cadenas de Llano-Pérula, A Alqerban, S Fieuws, Y Sun, C Politis, A Verdonck, G Willems
No abstract text is available yet for this article.
February 14, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28199512/structural-morphological-compositional-and-mechanical-changes-of-palatal-implants-after-use-a-retrieval-analysis
#12
Marc Schätzle, Spiros Zinelis, Goran Markic, George Eliades, Theodore Eliades
No abstract text is available yet for this article.
February 12, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28160471/the-effect-of-headgear-on-upper-third-molars-a-retrospective-longitudinal-study
#13
Annelie Miclotte, Bieke Grommen, Steven Lauwereins, Maria Cadenas de Llano-Pérula, Ali Alqerban, Anna Verdonck, Steffen Fieuws, Reinhilde Jacobs, Guy Willems
No abstract text is available yet for this article.
February 4, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339790/does-systemic-administration-of-casein-phosphopeptides-affect-orthodontic-movement-and-root-resorption-in-rats
#14
Lachlan Crowther, Gang Shen, Mohammed Almuzian, Allan Jones, William Walsh, Rema Oliver, Peter Petocz, Nour E Tarraf, M Ali Darendeliler
Objectives: To assess the potential effects of casein phosphopeptides (CPPs) on orthodontically induced iatrogenic root resorption (OIIRR) and orthodontic teeth movement. Materials and methods: Forty Wistar rats (aged 11 weeks) were randomly divided into experimental group (EG; n = 20) that received a diet supplemented with CPP and control group (CG; n = 20) devoid of diet supplement. A 150 g force was applied using nickel titanium (NiTi) coil that was bonded on maxillary incisors and extended unilaterally to a maxillary first molar...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339612/orthodontically-induced-cervical-root-resorption-in-humans-is-associated-with-the-amount-of-tooth-movement
#15
Alexander Dudic, Catherine Giannopoulou, Paolo Meda, Xavier Montet, Stavros Kiliaridis
Introduction: The aim of this study was to investigate the variation in the amount of the orthodontically induced cervical root resorption and the association with several factors, such as the amount of tooth displacement, location of tooth in the maxilla or mandible, and presence of an interference that may influence the amount of root resorption. Subjects and methods: This study included 30 subjects (20 females, 10 males) with an age range of 11.3 to 43.0 years...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339597/compositional-differences-in-multi-species-biofilms-formed-on-various-orthodontic-adhesives
#16
Jung-Sub An, Kyungsun Kim, Soha Cho, Bum-Soon Lim, Sug-Joon Ahn
Objectives: To investigate the aspects of multi-species biofilm formation on various orthodontic adhesives with different surface characteristics. Methods: Multi-species biofilms using 13 bacterial species were grown on the surfaces of composite, compomer, and resin-modified glass-ionomer cement (RMGI). The changes in Streptococcus mutans (Sm), Streptococcus sobrinus (Ss), Porphyromonas gingivalis (Pg), Aggregatibacter actinomycetemcomitans (Aa), and total bacteria were determined at day 1 (T1) and day 4 (T2) using real-time polymerase chain reaction...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339591/comparison-of-the-force-levels-among-labial-and-lingual-self-ligating-and-conventional-brackets-in-simulated-misaligned-teeth
#17
Ahmad Alobeid, Tarek El-Bialy, Said Khawatmi, Cornelius Dirk, Andreas Jäger, Christoph Bourauel
Background/objective: The aim of this study was to evaluate force levels exerted by levelling arch wires with labial and lingual conventional and self-ligating brackets. Materials/methods: The tested orthodontic brackets were of the 0.022-in slot size for labial and 0.018-in for lingual brackets and were as follows: 1. Labial brackets: (i) conventional bracket (GAC-Twin, Dentsply), (ii) passive self-ligating (SL) brackets (Damon-Q®, ORMCO; Ortho classic H4™, Orthoclassic; FLI®SL, Rocky Mountain Orthodontics) and (iii) active SL brackets (GAC In-Ovation®C, DENTSPLY and SPEED™, Strite)...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339587/incisor-inclination-and-perceived-tooth-colour-changes
#18
Philip Ciucchi, Stavros Kiliaridis
Introduction: Social attractiveness is influenced by a variety of different smile-related factors. We evaluated whether the degree of upper central incisor proclination can result in tooth colour change. Methods: Forty young adult subjects (20-25 years) in good health with a complete sound dentition were selected. The subjects were seated in standardized light conditions with an above-directed light source. Their natural head position was stated as 0 degrees. To mimic the range of possible anterior torque movements they were asked to tilt their heads upward +15 degrees (upward tilting) and downward -15 degrees (downward tilting)...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339580/the-integration-of-orthodontic-miniscrews-under-mechanical-loading-a-pre-clinical-study-in-rabbit
#19
B Giuliano Maino, Alberto Di Blasio, Davide Spadoni, Francesca Ravanetti, Carlo Galli, Antonio Cacchioli, Christos Katsaros, Mauro Gandolfini
Introduction: Orthodontic miniscrews are an increasingly popular choice to achieve absolute anchorage. The temporary use of miniscrews and their recent introduction have limited the debate over the biological aspect of the materials to that of the surface that permeates the field of dental implants. The aim of the present study was to investigate the integration of grade 5 titanium mini-implants with machined or sand blasted acid etched surface (SAE) under mechanical load in a rabbit tibia model of implant integration...
January 18, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28064196/understanding-interactions-among-cephalometrics-variables-during-growth-in-untreated-class-iii-subjects
#20
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
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