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Progress in Orthodontics

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https://www.readbyqxmd.com/read/29658096/effect-of-low-level-laser-and-low-intensity-pulsed-ultrasound-therapy-on-bone-remodeling-during-orthodontic-tooth-movement-in-rats
#1
Mohammed Mahmood Jawad Alazzawi, Adam Husein, Mohammad Khursheed Alam, Rozita Hassan, Rumaizi Shaari, Ahmad Azlina, M S Salzihan
BACKGROUND: Quality bone regeneration, which leads to the improvement of bone remodeling, is essential for orthodontic treatment. In order to improve bone regeneration and increase the amount of tooth movement, different techniques have been implemented. The object of this study is to compare the effects of low-level laser therapy (LLLT), low-intensity pulsed ultrasound (LIPUS), and their combination on bone remodeling during orthodontic tooth movement. METHODS: Eighty (80) male, 6-week-old Sprague Dawley rats were grouped in to four groups, the first group was irradiated with (940 nm) diode laser, second group with LIPUS, and third group with combination of both LLLT and LIPUS...
April 16, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29607469/movement-of-anterior-teeth-using-clear-aligners-a-three-dimensional-retrospective-evaluation
#2
Michele Tepedino, Valeria Paoloni, Paola Cozza, Claudio Chimenti
BACKGROUND: Clear aligner treatment offers several advantages, but the available literature shows that some kind of tooth movements are unpredictable. In addition, the majority of the studies are focused on one clear aligner system, while different characteristics of various systems can provide different treatment outcomes. The aim of the present retrospective cohort study was to evaluate the predictability of Nuvola® aligner system in achieving torque movements of anterior teeth. METHODS: Thirty-nine adult patients, who were consecutively treated with clear aligners, were retrospectively selected, and digital models pre-treatment (T0), post-treatment (T1) and the digital setup models (TS) were collected...
April 2, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29532184/the-effect-of-pacifier-sucking-on-orofacial-structures-a-systematic-literature-review
#3
REVIEW
Karin Michèle Schmid, Remo Kugler, Prasad Nalabothu, Carles Bosch, Carlalberta Verna
BACKGROUND: Non-nutritive sucking habits may adversely affect the orofacial complex. This systematic literature review aimed to find scientific evidence on the effect of pacifier sucking on orofacial structures. METHODS: A search on MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, and Web of Science databases was conducted to find all pertinent articles published from inception until February 2018, based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines...
March 13, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29457192/influence-of-orthodontic-appliance-derived-artifacts-on-3-t-mri-movies
#4
Erika Ozawa, Ei-Ichi Honda, Kulthida Nunthayanon Parakonthun, Hiroko Ohmori, Kazuo Shimazaki, Tohru Kurabayashi, Takashi Ono
BACKGROUND: Magnetic resonance imaging (MRI) has been used to study configurations of speech organs in the resting state. However, MRI is sensitive to metals, and numerous types of metallic appliances, most of which have a large magnetic susceptibility, are used in orthodontic treatment and may cause severe artifacts on MRI. We have developed techniques for obtaining MRI movies of the oral region, to evaluate articulatory changes, especially movement of the tongue, palate, and teeth, pre- and post-orthodontic/orthognathic treatment...
February 19, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29430612/comparison-of-two-intraoral-scanners-based-on-three-dimensional-surface-analysis
#5
Kyung-Min Lee
BACKGROUND: This in vivo study evaluated the difference of two well-known intraoral scanners used in dentistry, namely iTero (Align Technology) and TRIOS (3Shape). METHODS: Thirty-two participants underwent intraoral scans with TRIOS and iTero scanners, as well as conventional alginate impressions. The scans obtained with the two intraoral scanners were compared with each other and were also compared with the corresponding model scans by means of three-dimensional surface analysis...
February 12, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29399703/release-of-nickel-and-chromium-ions-from-orthodontic-wires-following-the-use-of-teeth-whitening-mouthwashes
#6
AmirHossein Mirhashemi, Sahar Jahangiri, MohammadJavad Kharrazifard
BACKGROUND: Corrosion resistance is an important requirement for orthodontic appliances. Nickel and chromium may be released from orthodontic wires and can cause allergic reactions and cytotoxicity when patients use various mouthwashes to whiten their teeth. Our study aimed to assess the release of nickel and chromium ions from nickel titanium (NiTi) and stainless steel (SS) orthodontic wires following the use of four common mouthwashes available on the market. METHODS: This in vitro, experimental study was conducted on 120 orthodontic appliances for one maxillary quadrant including five brackets, one band and half of the required length of SS, and NiTi wires...
February 5, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29376198/quantitative-measures-of-gingival-recession-and-the-influence-of-gender-race-and-attrition
#7
Chester S Handelman, Anthony P Eltink, Ellen BeGole
BACKGROUND: Gingival recession in dentitions with otherwise healthy periodontium is a common occurrence in adults. Recession is clinically measured using a periodontal probe to the nearest millimeter. The aim of this study is to establish quantitative measures of recession, the clinical crown height, and a new measure the gingival margin-papillae measurement. The latter is seen as the shortest apico-coronal distance measured from the depth of the gingival margin to a line connecting the tips of the two adjacent papillae...
January 29, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29354889/-my-invisalign-experience-content-metrics-and-comment-sentiment-analysis-of-the-most-popular-patient-testimonials-on-youtube
#8
Christos Livas, Konstantina Delli, Nikolaos Pandis
BACKGROUND: The aim of the study was to investigate the popularity, content of Invisalign patient testimonials on YouTube, as well as the sentiment of the related comments. METHODS: Using the term "Invisalign experience," the top 100 results on YouTube by view count were screened for English spoken patient videos that attracted comments. Video information (time since video upload, sponsorship), engagement metrics (comments, likes, dislikes, subscriptions), and views were collected...
January 22, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29333593/control-of-anterior-segment-using-an-antero-posterior-lingual-sliding-retraction-system-a-preliminary-cone-beam-ct-study
#9
Min Hwang, Hyo-Won Ahn, Soon-Yong Kwon, Jeong-Ho Choi, Seong-Hun Kim, Gerald Nelson
BACKGROUND: This study was performed to evaluate the treatment effects of the antero-posterior lingual retractor (APLR), focusing on the 3-dimensional (3D) tooth movement of the maxillary anterior teeth and their alveolar bone levels. METHODS: En masse retraction was performed using either the C-lingual retractor (CLR, C-group, n = 9) or the antero-posterior lingual retractor (APLR, AP-group, n = 8). We evaluated 3D movement of the maxillary anterior teeth and alveolar bone levels, root length of the central incisors, long axes of the maxillary canines, and occlusal plane changes from CBCT images...
January 15, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29308540/mandibular-molar-uprighting-using-orthodontic-miniscrew-implants-a-systematic-review
#10
REVIEW
Panagiota Magkavali-Trikka, Georgios Emmanouilidis, Moschos A Papadopoulos
The purpose of this systematic review was to identify studies and present the use of miniscrew implants (MIs) as an alternative treatment to mandibular molar uprighting. An electronic search and handsearching were conducted by two independent reviewers to identify relevant articles, published up to January 27, 2017. In order to methodologically assess the eligible studies, a pilot checklist consisting of 22 items was also implemented. After exclusion of all the irrelevant papers, only 17 studies were included, presenting 27 cases of mandibular molar uprighting in all planes using both direct and indirect force traction by MIs...
January 8, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29302879/effectiveness-of-en-masse-versus-two-step-retraction-a-systematic-review-and-meta-analysis
#11
REVIEW
Mumen Z Rizk, Hisham Mohammed, Omar Ismael, David R Bearn
BACKGROUND: This review aims to compare the effectiveness of en masse and two-step retraction methods during orthodontic space closure regarding anchorage preservation and anterior segment retraction and to assess their effect on the duration of treatment and root resorption. METHODS: An electronic search for potentially eligible randomized controlled trials and prospective controlled trials was performed in five electronic databases up to July 2017. The process of study selection, data extraction, and quality assessment was performed by two reviewers independently...
January 5, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29250718/vertical-skeletal-changes-after-extraction-and-non-extraction-treatment-in-matched-class-i-patients-identified-by-a-discriminant-analysis-cephalometric-appraisal-and-procrustes-superimposition
#12
Philipp Beit, Dimitrios Konstantonis, Alexandros Papagiannis, Theodore Eliades
BACKGROUND: In the long-lasting debate of extraction versus non-extraction treatment, the impact of extractions on the skeletal vertical dimension remains rather unclear. The aim of this retrospective research study was to obtain a bias-free sample of morphologically similar borderline patients treated with or without extraction of the four first premolars and to retrospectively evaluate the vertical changes that occurred. METHODS: A borderline sample of 83 patients, 41 treated with four first premolar extractions and 42 treated without, was obtained by means of discriminant analysis applied to a previously investigated parent sample of 542 class I patients...
December 18, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/29243002/comprehending-the-three-dimensional-mandibular-morphology-of-facial-asymmetry-patients-with-mandibular-prognathism
#13
Hideki Kamata, Norihisa Higashihori, Hiroki Fukuoka, Momotoshi Shiga, Tatsuo Kawamoto, Keiji Moriyama
BACKGROUND: The purpose of this study was to elucidate the factors that cause facial asymmetry by comparing the characteristics of the mandibular morphology in patients with mandibular prognathism with or without facial asymmetry using three-dimensional computed tomography (3D-CT). METHODS: We studied 28 mandibular prognathism patients whose menton deviated by ≥ 4 mm from the midline (FA group, n = 14) and those with a < 4-mm deviation (NA group, n = 14)...
December 15, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/29226300/a-novel-method-for-treatment-of-class-iii-malocclusion-in-growing-patients
#14
Saad A Al-Mozany, Oyku Dalci, Mohammed Almuzian, Carmen Gonzalez, Nour E Tarraf, M Ali Darendeliler
BACKGROUND: Management of Class III malocclusion is one of the most challenging treatments in orthodontics, and several methods have been advocated for treatment of this condition. A new treatment protocol involves the use of an alternating rapid maxillary expansion and constriction (Alt-RAMEC) protocol, in conjunction with full-time Class III elastic wear and coupled with the use of temporary anchorage devices (TADs). The aim of this study was to evaluate the dento-skeletal and profile soft tissue effects of this novel protocol in growing participants with retrognathic maxilla...
December 11, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/29199373/dentoskeletal-and-soft-tissue-changes-in-class-ii-subdivision-treatment-with-asymmetric-extraction-protocols
#15
Guilherme Janson, Eduardo Beaton Lenza, Rodolfo Francisco, Aron Aliaga-Del Castillo, Daniela Garib, Marcos Augusto Lenza
BACKGROUND: This study cephalometrically compared the dentoskeletal and soft tissue changes consequent to one and three-premolar extraction protocols of class II subdivision malocclusion treatment. METHODS: A sample of 126 lateral cephalometric radiographs from 63 patients was selected and divided into two groups. Group 1 consisted of 31 type 1 class II subdivision malocclusion patients treated with asymmetric extractions of two maxillary premolars and one mandibular premolar on the class I side, with an initial mean age of 13...
December 4, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/29192356/measuring-3d-shape-in-orthodontics-through-geometric-morphometrics
#16
Luis Huanca Ghislanzoni, Roberta Lione, Paola Cozza, Lorenzo Franchi
BACKGROUND: Geometric morphometrics (GMM) has been traditionally applied to the field of biology to study developmental differentiations between species. Orthodontics deals with the shape and size of the face and its components. While several tools have been used to measure size, proportions, and relations between anatomical components, shape has been mainly described by esthetic criteria. The purpose of this paper is to present methods to measure shape of 3D orthodontic data, beyond the conventional tools that have been traditionally used in cephalometrics and in facial and dental cast analysis...
December 1, 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28782095/markers-in-blood-and-saliva-for-prediction-of-orthodontically-induced-inflammatory-root-resorption-a-retrospective-case-controlled-study
#17
Dilara Yashin, Oyku Dalci, Mohammed Almuzian, Jenkin Chiu, Rajiv Ahuja, Apurv Goel, M Ali Darendeliler
BACKGROUND: Hormonal and enzymatic factors may render certain individuals more susceptible to orthodontically induced inflammatory root resorption (OIIRR). The objectives of this study are (1) to identify biochemical key markers in blood and saliva that may be correlated to the trend of extensive OIIRR and (2) to utilise these markers to predict a susceptible patient-receiving orthodontic treatment. METHODS: Nine patients (mean age 23 + 2.9 years) who had moderate to severe OIIRR that assessed via orthopantomograms and met the inclusion criteria were classified as the root resorption group (RRG)...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28782094/comparative-sem-analysis-of-nine-f22-aligner-cleaning-strategies
#18
Luca Lombardo, Marco Martini, Francesca Cervinara, Giorgio Alfredo Spedicato, Teresa Oliverio, Giuseppe Siciliani
BACKGROUND: The orthodontics industry has paid great attention to the aesthetics of orthodontic appliances, seeking to make them as invisible as possible. There are several advantages to clear aligner systems, including aesthetics, comfort, chairside time reduction, and the fact that they can be removed for meals and oral hygiene procedures. METHODS: Five patients were each given a series of F22 aligners, each to be worn for 14 days and nights, with the exception of meal and brushing times...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28762153/a-retrospective-cephalometric-study-on-upper-airway-spaces-in-different-facial-types
#19
Roselaine Sprenger, Luciano Augusto Cano Martins, Júlio Cesar Bento Dos Santos, Carolina Carmo de Menezes, Giovana Cherubini Venezian, Viviane Veroni Degan
BACKGROUND: Craniofacial growth pattern has been correlated with variations in size of the upper airway spaces. The objective of this study was to evaluate the nasopharyngeal, oropharyngeal, and hypopharyngeal airway spaces variations according to the craniofacial growth pattern, by comparing brachyfacial, mesofacial, and dolichofacial in Angle Class I individuals. METHODS: To measure the spaces, 45 lateral teleradiographs were used and divided into 3 groups per the craniofacial growth pattern, determined by the Tweed cephalometry angular measurements: FMA and Y-axis...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28762152/quantitative-analysis-of-the-relationship-between-maxillary-incisors-and-the-incisive-canal-by-cone-beam-computed-tomography-in-an-adult-japanese-population
#20
Tomonari Matsumura, Yuji Ishida, Ayako Kawabe, Takashi Ono
BACKGROUND: In setting goals for orthodontic treatment, determining the morphologies of the alveolar bone and maxillary incisor root is important for avoiding root resorption, dehiscence, and fenestration. This study aimed to analyze the configurational relationships among maxillary incisors, the alveolar border, and the incisive canal by cone-beam computed tomography (CBCT). METHODS: Cone-beam CT images of 93 orthodontic patients were evaluated for length of the incisive canal (L); angles between the palatal plane and the maxillary alveolar border (θ1), the incisive canal (θ2), and maxillary incisor (θ3); distance from the left maxillary incisor to the incisive canal (D); and cross-sectional areas of the incisive canal (CSAs) at three vertical levels...
December 2017: Progress in Orthodontics
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