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Korean Journal of Orthodontics

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https://www.readbyqxmd.com/read/30450334/list-of-the-international-reviewers-in-2018
#1
EDITORIAL
(no author information available yet)
No abstract text is available yet for this article.
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30450333/comparison-of-clinical-and-histological-characteristics-of-orthodontic-tooth-movement-into-recent-and-healed-extraction-sites-combined-with-corticotomy-in-rats
#2
Bancha Samruajbenjakun, Kaviya Kanokpongsak, Chidchanok Leethanakul
Objective: This study was performed to investigate the rate of tooth movement and histological characteristics of extraction sockets those were subjected to corticotomy. Methods: A split-mouth randomized controlled trial experiment was designed. Thirty-two adult, male Wistar rats were divided into 2 groups: healing extraction socket (H) and recent extraction socket (R); these groups were randomly classified into 4 subgroups (0/7/21/60 days). The first maxillary molar was extracted on 1 side and 2 months were allowed for complete bone healing; then, the corresponding molar was extracted on the other side and surgical intervention was performed at the mid-alveolar point of the first maxillary molar...
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30450332/association-between-genetic-polymorphisms-and-external-apical-root-resorption-a-systematic-review-and-meta-analysis
#3
Shifat A Nowrin, Saidi Jaafar, Norma Ab Rahman, Rehana Basri, Mohammad Khursheed Alam, Fazal Shahid
Objective: To date, only a few studies have investigated the relationships between genetic polymorphisms and external apical root resorption (EARR). Hence, the aim of this systematic review was to explore the relationship between different gene polymorphisms and their association with EARR. Methods: A complete literature search was conducted by two independent reviewers. The PubMed, Science Direct, and Scopus databases were searched. In addition, the bibliographies of all textbooks and relevant articles were searched manually...
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30450331/effects-of-prestretch-on-stress-relaxation-and-permanent-deformation-of-orthodontic-synthetic-elastomeric-chains
#4
Jee Hae Chang, Chung-Ju Hwang, Kyung-Ho Kim, Jung-Yul Cha, Kwang-Mahn Kim, Hyung Seog Yu
Objective: This study was performed to investigate an appropriate degree of prestretch for orthodontic synthetic elastomeric chains focusing on time-dependent viscoelastic properties. Methods: Orthodontic synthetic elastomeric chains of two brands were prestretched to 50, 100, 150, and 200% of the original length in one and three cycles, and the hysteresis areas of the obtained stress-strain curves were determined. Acrylic plates were employed to maintain constant strain during the experiment...
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30450330/colorimetric-evaluation-of-white-spot-lesions-following-external-bleaching-with-fluoridation-an-in-vitro-study
#5
Yoon-Young Choi, Dong-Yul Lee, Yae-Jin Kim
Objective: This study was performed to investigate the effects of external tooth bleaching with flouridation on the appearance of white spot lesions (WSLs) in vitro . Methods: In total, 125 bracket-bonded bovine incisor enamel blocks with artificial WSLs were randomly divided into a control group and four treatment groups (home bleaching, home bleaching + fluoridation, in-office bleaching, and in-office bleaching + fluoridation). A spectroradiometer (SR) and digital images (DIs) were used to evaluate colorimetric parameters (Commission Internationale l'Eclairage L* a* b* ) for all specimens...
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30450329/evaluation-of-changes-in-the-maxillary-alveolar-bone-after-incisor-intrusion
#6
Ezgi Atik, Hande Gorucu-Coskuner, Bengisu Akarsu-Guven, Tulin Taner
Objective: This study was performed to investigate the changes in alveolar bone after maxillary incisor intrusion and to determine the related factors in deep-bite patients. Methods: Fifty maxillary central incisors of 25 patients were evaluated retrospectively. The maxillary incisors in Group I (12 patients; mean age, 16.51 ± 1.32 years) were intruded with a base-arch, while those in Group II (13 patients; mean age, 17.47 ± 2.71 years) were intruded with miniscrews...
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30450328/cone-beam-computed-tomography-analysis-of-transverse-dental-compensation-in-patients-with-skeletal-class-iii-malocclusion-and-facial-asymmetry
#7
Ji-Yea Lee, Sung-Hoon Han, Hyeong-Seok Ryu, Hee-Min Lee, Sang-Cheol Kim
Objective: The purpose of this study was to analyze the transverse dental compensation in reference to the maxillary and mandibular basal bones using cone-beam computed tomography (CBCT) and evaluate the correlations between transverse dental compensation and skeletal asymmetry variables in patients with skeletal Class III malocclusion and facial asymmetry. Methods: Thirty patients with skeletal Class I (control group; 15 men, 15 women) and 30 patients with skeletal Class III with menton deviation (asymmetry group; 16 men, 14 women) were included...
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30450327/assessment-of-lower-incisor-alveolar-bone-width-using-cone-beam-computed-tomography-images-in-skeletal-class-iii-adults-of-different-vertical-patterns
#8
Sanghee Lee, Soonshin Hwang, Woowon Jang, Yoon Jeong Choi, Chooryung J Chung, Kyung-Ho Kim
Objective: This study was performed to investigate the alveolar bone of lower incisors in skeletal Class III adults of different vertical facial patterns and to compare it with that of Class I adults using cone-beam computed tomography (CBCT) images. Methods: CBCT images of 90 skeletal Class III and 29 Class I patients were evaluated. Class III subjects were divided by mandibular plane angle: high (SN-MP > 38.0°), normal (30.0° < SN-MP < 37.0°), and low (SN-MP < 28...
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30450326/reader-s-forum
#9
COMMENT
Ji-Young Kim
No abstract text is available yet for this article.
November 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206534/correction-to-hard-and-soft-tissue-profiles-of-the-midface-region-in-patients-with-skeletal-class-iii-malocclusion-using-cone-beam-computed-tomography-multiplanar-reconstructed-image-analysis
#10
Bomi Kim, Hyung-Chul Lee, Seong-Hun Kim, Yongil Kim, Woosung Son, Seong Sik Kim
[This corrects the article on p. 143 in vol. 48, PMID: 29732300.].
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206533/effects-of-continuous-force-application-for-extrusive-tipping-movement-on-periapical-root-resorption-in-the-rat-mandibular-first-molar
#11
Yoshiro Matsumoto, Siripen Sringkarnboriboon, Takashi Ono
Objective: The purpose of this study was to clarify the effects of continuous force application for extrusive tipping movement and occlusal interference on periapical root resorption in the rat mandibular first molar. Methods: We constructed an appliance comprising a titanium screw implant with a cobalt-chromium post as the anchorage unit and a nickel-titanium closed coil spring (50 cN) as the active unit. Force was applied on the mandibular left first molar of rats for 8 (n = 10) and 15 days (n = 10; experimental groups), with the tooth in occlusion...
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206532/evaluation-of-buccolingual-molar-inclinations-among-different-vertical-facial-types
#12
Feyza Eraydin, Derya Germec Cakan, Murat Tozlu, Fulya Ozdemir
Objective: The aim of this study was to compare the buccolingual inclination of maxillary and mandibular molars in adults with different vertical facial types. Methods: Cone-beam computed tomography images of 135 adult patients (age, 20-45 years) with skeletal Class I maxillomandibular relationships were assigned to normodivergent (n = 46), hypodivergent (n = 49), and hyperdivergent groups (n = 40) according to linear and angular sella-nasion/gonion-menton measurements...
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206531/pain-perception-among-patients-treated-with-passive-self-ligating-fixed-appliances-and-invisalign-%C3%A2-aligners-during-the-first-week-of-orthodontic-treatment
#13
Naif N Almasoud
Objective: This study was performed to compare the perception of pain between patients treated with passive self-ligating fixed appliances and those treated with Invisalign aligners. Methods: This prospective study conducted in Saudi Arabia used an estimated sample of 64 patients from a private dental clinic. After obtaining written informed consent, the patients were divided into two groups; one group (n = 32) was treated using passive self-ligating fixed appliances and the other group (n = 32) using Invisalign® aligners...
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206530/effects-of-thermoforming-on-the-physical-and-mechanical-properties-of-thermoplastic-materials-for-transparent-orthodontic-aligners
#14
Jeong-Hyun Ryu, Jae-Sung Kwon, Heng Bo Jiang, Jung-Yul Cha, Kwang-Mahn Kim
Objective: The aim of this systematic multiscale analysis was to evaluate the effects of thermoforming on the physical and mechanical properties of thermoplastic materials used to fabricate transparent orthodontic aligners (TOAs). Methods: Specimens were fabricated using four types of thermoplastic materials with different thicknesses under a thermal vacuum. Transparency, water absorption and solubility, surface hardness, and the results of three-point bending and tensile tests were evaluated before and after thermoforming...
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206529/displacement-and-stress-distribution-of-the-maxillofacial-complex-during-maxillary-protraction-using-palatal-plates-a-three-dimensional-finite-element-analysis
#15
Jusuk Eom, Mohamed Bayome, Jae Hyun Park, Hee Jin Lim, Yoon-Ah Kook, Seong Ho Han
Objective: The purpose of this study was to analyze initial displacement and stress distribution of the maxillofacial complex during dentoskeletal maxillary protraction with various appliance designs placed on the palatal region by using three-dimensional finite element analysis. Methods: Six models of maxillary protraction were developed: conventional facemask (Type A), facemask with dentoskeletal hybrid anchorage (Type B), facemask with a palatal plate (Type C), intraoral traction using a Class III palatal plate (Type D), facemask with a palatal plate combined with rapid maxillary expansion (RME; Type E), and Class III palatal plate intraoral traction with RME (Type F)...
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206528/accuracy-of-three-dimensional-cephalograms-generated-using-a-biplanar-imaging-system
#16
Ha-Yeon Park, Jae-Seo Lee, Jin-Hyoung Cho, Hyeon-Shik Hwang, Kyung-Min Lee
Objective: Biplanar imaging systems allow for simultaneous acquisition of lateral and frontal cephalograms. The purpose of this study was to compare measurements recorded on three-dimensional (3D) cephalograms constructed from two-dimensional conventional radiographs and biplanar radiographs generated using a new biplanar imaging system with those recorded on cone-beam computed tomography (CBCT)-generated cephalograms in order to evaluate the accuracy of the 3D cephalograms generated using the biplanar imaging system...
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206527/histomorphometric-evaluation-of-the-bone-surrounding-orthodontic-miniscrews-according-to-their-adjacent-root-proximity
#17
Hyun-Ju Oh, Jung-Yul Cha, Hyung-Seog Yu, Chung-Ju Hwang
Objective: This study was conducted to perform histomorphometric evaluations of the bone surrounding orthodontic miniscrews according to their proximity to the adjacent tooth roots in the posterior mandible of beagle dogs. Methods: Four male beagle dogs were used for this study. Six orthodontic miniscrews were placed in the interradicular spaces in the posterior mandible of each dog (n = 24). The implanted miniscrews were classified into no loading, immediate loading, and delayed loading groups according to the loading time...
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30206526/reader-s-forum
#18
COMMENT
Ae-Rim Ha
No abstract text is available yet for this article.
September 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30003061/resistance-to-sliding-in-orthodontics-misconception-or-method-error-a-systematic-review-and-a-proposal-of-a-test-protocol
#19
REVIEW
Fabio Savoldi, Aggeliki Papoutsi, Simona Dianiskova, Domenico Dalessandri, Stefano Bonetti, James K H Tsoi, Jukka P Matinlinna, Corrado Paganelli
Resistance to sliding (RS) between the bracket, wire, and ligature has been largely debated in orthodontics. Despite the extensive number of published studies, the lack of discussion of the methods used has led to little understanding of this phenomenon. The aim of this study was to discuss variables affecting RS in orthodontics and to suggest an operative protocol. The search included PubMed©, Medline©, and the Cochrane Library©. References of full-text articles were manually analyzed. English-language articles published between January 2007 and January 2017 that performed an in vitro analysis of RS between the bracket, wire, and ligature were included...
July 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/30003060/clinical-application-of-an-intraoral-scanner-for-serial-evaluation-of-orthodontic-tooth-movement-a-preliminary-study
#20
Dalsun Yun, Dong-Soon Choi, Insan Jang, Bong-Kuen Cha
The aim of this study was to test the clinical application of an intraoral scanner for serial evaluation of orthodontic tooth movement. The maxillary dentitions of eight patients with fixed orthodontic appliances were scanned using an intraoral scanner at the beginning of treatment (T0), and at 1 month (T1), 2 months (T2), 3 months (T3), and 4 months (T4) after T0. The serial digital models were superimposed on the palatal surface as a reference area, and the linear and angular changes of the central incisors, canines, and first molars were evaluated...
July 2018: Korean Journal of Orthodontics
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