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Progress in Orthodontics

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https://www.readbyqxmd.com/read/30318565/the-immediate-effect-of-alternate-rapid-maxillary-expansions-and-constrictions-on-the-alveolus-a-retrospective-cone-beam-computed-tomography-study
#1
Narayan H Gandedkar, Eric Jein-Wein Liou
BACKGROUND: Rapid maxillary expansion reduced the expander's anchor teeth buccal alveolar bone thickness. However, the effects of alternate rapid maxillary expansions and constrictions (Alt-RAMEC) on the expander's anchor teeth alveolar thickness has not been assessed. The purpose of this retrospective study was to evaluate the effects of Alt-RAMEC on the alveolus surrounding the anchor teeth of a double-hinged expander. METHODS: Twenty-six individuals, including 12 males (11...
October 15, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30294769/the-inflection-point-a-torque-reference-for-lingual-bracket-positioning-on-the-palatal-surface-curvature-of-the-maxillary-central-incisor
#2
Abdel Hadi Kanj, Joseph Bouserhal, Essam Osman, Ahmed Abdel Moneim El Sayed
BACKGROUND: Contrary to buccal orthodontics, lingual orthodontics has no reference for vertical bracket positioning on the maxillary central incisor. The aim of this study was to provide a reference point in relation to torque for lingual bracket positioning on the palatal surface curvature (PSC) of the maxillary central incisor. METHODS: Cone beam computed tomography (CBCT) radiographs of 50 right maxillary central incisors from archives of a dental radiographic center were transferred to Photoshop, where their PSC was traced using pen-tool...
October 8, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30280257/the-difference-of-stress-distribution-of-maxillary-expansion-using-rapid-maxillary-expander-rme-and-maxillary-skeletal-expander-mse-a-finite-element-analysis
#3
Nathania Hartono, Benny M Soegiharto, Retno Widayati
BACKGROUND: Maxillary skeletal expander (MSE) in combination with miniscrews was developed to overcome the drawbacks that may have resulted from the application of conventional rapid maxillary expander (RME). This research was conducted to analyze the difference of stress distribution of maxillary expansion using RME and MSE in the region of interests (ROIs): first molars (M1), palatal alveolar bones of M1, palatine sutures, zygomatic sutures, miniscrews, and their surrounding bones. METHODS: A dry skull was scanned using CBCT and rendered into a three-dimensional (3D) model of craniomaxillary structures...
October 3, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30270414/examination-of-craniofacial-morphology-in-japanese-patients-with-congenitally-missing-teeth-a-cross-sectional-study
#4
Yuki Takahashi, Norihisa Higashihori, Yuko Yasuda, Jun-Ichi Takada, Keiji Moriyama
BACKGROUND: The purpose of this cross-sectional study was to investigate the effects of congenitally missing teeth on craniofacial morphology and to characterize the features of maxillofacial morphology of oligodontia patients associated with individual skeletal maturity by assessment with the cervical vertebrae maturation (CVM) method. METHODS: A total of 106 non-syndromic Japanese patients with congenitally missing teeth (except for third molars) were selected and categorized into two groups according to the severity of congenitally missing teeth (hypodontia group, 1-5 missing teeth [n = 56]; oligodontia group, ≥ 6 missing teeth [n = 50])...
October 1, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30264270/clinical-effectiveness-of-invisalign%C3%A2-orthodontic-treatment-a-systematic-review
#5
REVIEW
Aikaterini Papadimitriou, Sophia Mousoulea, Nikolaos Gkantidis, Dimitrios Kloukos
BACKGROUND: Aim was to systematically search the literature and assess the available evidence regarding the clinical effectiveness of the Invisalign® system. METHODS: Electronic database searches of published and unpublished literature were performed. The reference lists of all eligible articles were examined for additional studies. Reporting of this review was based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. RESULTS: Three RCTs, 8 prospective, and 11 retrospective studies were included...
September 28, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30246217/role-of-anatomical-sites-and-correlated-risk-factors-on-the-survival-of-orthodontic-miniscrew-implants-a-systematic-review-and-meta-analysis
#6
REVIEW
Hisham Mohammed, Khaled Wafaie, Mumen Z Rizk, Mohammed Almuzian, Rami Sosly, David R Bearn
OBJECTIVES: The aim of this review was to systematically evaluate the failure rates of miniscrews related to their specific insertion site and explore the insertion site dependent risk factors contributing to their failure. SEARCH METHODS: An electronic search was conducted in the Cochrane Central Register of Controlled Trials (CENTRAL), Web of Knowledge, Scopus, MEDLINE and PubMed up to October 2017. A comprehensive manual search was also performed. ELIGIBILITY CRITERIA: Randomised clinical trials and prospective non-randomised studies, reporting a minimum of 20 inserted miniscrews in a specific insertion site and reporting the miniscrews' failure rate in that insertion site, were included...
September 24, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30221309/long-term-antimicrobial-assessment-of-orthodontic-brackets-coated-with-nitrogen-doped-titanium-dioxide-against-streptococcus-mutans
#7
Parisa Salehi, Neda Babanouri, Mehdi Roein-Peikar, Fatemeh Zare
BACKGROUND: The antimicrobial properties of orthodontic wire and brackets with nitrogen-doped titanium dioxide (N-doped TiO2) coating have been studied in the past. However, the evaluation period had been short and limited to 30 days. The aim of the present study was to extend the evaluation period (up to 90 days) of assessing the long-term antimicrobial effects of stainless steel orthodontic brackets coated with nitrogen-doped titanium dioxide (N-doped TiO2). METHODS: A total of 40 stainless steel pre-adjusted premolar brackets were equally divided into two groups; namely the control group (n=20, uncoated brackets) and the experimental group (n=20, coated brackets)...
September 17, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30198054/three-dimensional-analysis-of-dental-arch-forms-in-italian-population
#8
Bruno Oliva, Simone Sferra, Anna Lucia Greco, Francesco Valente, Cristina Grippaudo
BACKGROUND: The aim of this study was the comparison of male and female upper and lower dental arch form in untreated Italian patients by 3D analysis, to find differences in shape, in transversal and longitudinal diameters between sexes, and to give a representative set of population's dental arch to clinicians in order to provide suitable orthodontic treatment. METHODS: The sample consisted of 3D scans of dental casts deriving from 104 Italian untreated patients (Male = 35, Female = 69) in permanent dentition...
September 10, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30171391/class-ii-subdivision-correction-with-clear-aligners-using-intermaxilary-elastics
#9
Luca Lombardo, Anna Colonna, Antonella Carlucci, Teresa Oliverio, Giuseppe Siciliani
BACKGROUND: To describe an esthetic orthodontic treatment using aligners in an adult patient with class II subdivision associated with crowding and dental crossbite. An 18-year-old hyperdivergent male patient with skeletal class II from mandibular retrusion presented for an orthodontic treatment. Occlusally, the patient presents class II subdivision, crossbite at tooth 4.4, an upper midline deviated towards the left with respect to the lower and facial midlines, and slight crowding in both arches...
September 1, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30146655/a-new-method-for-the-treatment-of-unilateral-posterior-cross-bite-a-three-dimensional-finite-element-stress-analysis-study
#10
Çağrı Ulusoy, Merve Dogan
BACKGROUND: Stress relieving corticoto mies during the treatment of maxillary expansion are needed in adult patients. METHODS: Three-dimensional (3D) finite element model was prepared, and finite element analysis was processed to evaluate the stress distributions within the skull and maxillary teeth during surgically assisted rapid maxillary expansion (SARME) treatment. RESULTS: Expansion forces generated more stress on the corticotomy-applied part of the maxilla...
August 27, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30123921/frequency-of-missing-teeth-and-reduction-of-mesiodistal-tooth-width-in-japanese-patients-with-tooth-agenesis
#11
Norihisa Higashihori, Jun-Ichi Takada, Minami Katayanagi, Yuki Takahashi, Keiji Moriyama
BACKGROUND: Tooth agenesis can involve one or more congenitally missing teeth (CMT) and is the most common congenital dental anomalies in humans. Tooth agenesis and reduction of mesiodistal tooth width are reportedly associated, suggesting that the pathogenesis of the two conditions is related. The current study analyzed the frequency of tooth agenesis and mesiodistal tooth width in cases of hypodontia (1-5 CMT) and oligodontia (≥ 6 CMT) in Japanese patients based on the hypothesis that reductions in mesiodistal tooth width are more frequently associated with oligodontia than hypodontia...
August 20, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30101400/midpalatal-suture-evaluation-of-the-morphological-maturation-stages-via-bone-density
#12
Dani Abo Samra, Rania Hadad
BACKGROUND: To investigate the relationship between the morphological maturation stages of the midpalatal suture and its bone densities. METHODS: The sample consisted of 91 subjects aged 8-18 years who underwent cone beam computed tomography. All images were examined to classify morphological maturation of the midpalatal suture to five groups according to Angelieri et al. Bone density of the midpalatal suture was measured at the maxillary and palatal regions. Kruskal-Wallis and Mann-Whitney U tests were used to analyze the difference between groups...
August 13, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30079435/treatment-of-various-degrees-of-white-spot-lesions-using-resin-infiltration-in-vitro-study
#13
Bassant A Abbas, Eiman S Marzouk, Abbas R Zaher
BACKGROUND: This study was conducted to evaluate the efficiency of resin infiltration to improve the color of white spot lesions (WSLs) and to estimate the effect of different numbers of etching and resin infiltrant applications on the color change of WSLs with various depths. Ninety-six sound extracted premolars were subjected to acid attack inducing different depths of WSLs. Using a DIAGNOdent, teeth were divided into four main groups according to the depth of the WSLs: shallow enamel, deep enamel, shallow dentine, and deep dentine without cavitation...
August 6, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30069814/treatment-decision-in-adult-patients-with-class-iii-malocclusion-surgery-versus-orthodontics
#14
Sara Eslami, Jorge Faber, Ali Fateh, Farnaz Sheikholaemmeh, Vincenzo Grassia, Abdolreza Jamilian
BACKGROUND: One of the most controversial issues in treatment planning of class III malocclusion patients is the choice between orthodontic camouflage and orthognathic surgery. Our aim was to delineate diagnostic measures in borderline class III cases for choosing proper treatment. METHODS: The pretreatment lateral cephalograms of 65 patients exhibiting moderate skeletal class III were analyzed. The camouflage group comprised of 36 patients with the mean age of 23...
August 2, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30066184/salivary-levels-of-cariogenic-bacterial-species-during-orthodontic-treatment-with-thermoplastic-aligners-or-fixed-appliances-a-prospective-cohort-study
#15
Iosif Sifakakis, William Papaioannou, Aikaterini Papadimitriou, Dimitrios Kloukos, Spyridon N Papageorgiou, Theodore Eliades
BACKGROUND: Fixed orthodontic appliances might be associated with intraoral adverse effects on enamel, due to plaque accumulation and their colonization by oral microbes. At the same time, the demand for esthetic alternatives to orthodontic treatment, like thermoplastic aligners, is growing. However, thermoplastic aligners may behave differently intraorally than fixed appliances in terms of bacterial colonization and biofilm formation. Therefore, the aim of this prospective cohort study was to assess the salivary prevalence of the cariogenic bacteria Streptococcus mutans, Lactobacillus acidophilus, and Streptococcus sanguinis among adolescents treated orthodontically with thermoplastic aligners or fixed appliances...
August 1, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30033479/effects-of-invisible-orthodontic-retainers-on-masticatory-muscles-activity-during-sleep-a-controlled-trial
#16
Daniele Manfredini, Luca Lombardo, Letizia Vigiani, Angela Arreghini, Giuseppe Siciliani
BACKGROUND: This study aims to evaluate if invisible orthodontic retainers can affect sleep-time masticatory muscle activity (sMMA) over a short-term period in healthy individuals. METHODS: Nineteen (N = 19) healthy subjects underwent an in-home evaluation with a portable device for electromyographic (EMG) assessment. The study protocol provided two baseline recording nights, a night off, and then two additional nights with passive customized orthodontic retainers in situ...
July 23, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30027405/associations-between-tooth-agenesis-and-displaced-maxillary-canines-a-cross-sectional-radiographic-study
#17
Giuseppina Laganà, Nicolò Venza, Roberta Lione, Carlo Chiaramonte, Carlotta Danesi, Paola Cozza
BACKGROUND: The aim of present study was to test the association between hypodontia and displaced maxillary canine when compared with a control group. METHODS: The study group was composed of 336 subjects with a mean age of 10.7 ± 1.2 years, presenting with at least one missing tooth. Exclusion criteria included syndromes, craniofacial malformations, extractions and trauma history and previous orthodontic treatment. The control group consisted of 336 subjects with a mean age of 10...
July 20, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30022327/recommendations-for-clear-aligner-therapy-using-digital-or-plaster-study-casts
#18
Hsiu-Ching Ko, Weitao Liu, Derek Hou, Sepideh Torkan, Charles Spiekerman, Greg J Huang
BACKGROUND: Clear aligner therapy has evolved considerably since its introduction 20 years ago. Clinicians have become more experienced with aligner therapy, but little is known about the types of malocclusions that clinicians currently treat with aligners. Similarly, it is not known if viewing digital vs plaster models has any impact on the treatment planning process for aligners. The aim of this study was to assess which types of malocclusions are recommended for treatment with clear aligners, and also to determine if recommendations for aligner treatment differed when using digital versus plaster models...
July 19, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30009340/early-diagnosed-impacted-maxillary-canines-and-the-morphology-of-the-maxilla-a-three-dimensional-study
#19
Giorgio Cacciatore, Laura Poletti, Chiarella Sforza
BACKGROUND: The aetiology of the canine displacement still remains controversial. Some authors implicated a deficiency in maxillary width as a local mechanical cause for impacted canines. The aim of the study was to examine whether there is a relationship between impacted maxillary canines, early diagnosed by using panoramic radiographs, and the morphology of the maxilla on 3D model casts. METHODS: The displaced maxillary canines (DMC) group consisted of 24 patients (mean age, 9...
July 16, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/30003384/correction-to-mandibular-response-after-rapid-maxillary-expansion-in-class-ii-growing-patients-a-pilot-randomized-controlled-trial
#20
Roberta Lione, Valerio Brunelli, Lorenzo Franchi, Chiara Pavoni, Bernardo Quiroga Souki, Paola Cozza
In the publication of this article (1) there is an error in the Methods section.
July 12, 2018: Progress in Orthodontics
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