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Korean Journal of Orthodontics

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https://read.qxmd.com/read/30603626/long-term-stability-after-multidisciplinary-treatment-involving-maxillary-distraction-osteogenesis-and-sagittal-split-ramus-osteotomy-for-unilateral-cleft-lip-and-palate-with-severe-occlusal-collapse-and-gingival-recession-a-case-report
#1
Satoshi Kokai, Eiji Fukuyama, Susumu Omura, Sachiko Kimizuka, Ikuo Yonemitsu, Koichi Fujita, Takashi Ono
In this report, we describe a case involving a 34-year-old woman who showed good treatment outcomes with long-term stability after multidisciplinary treatment for unilateral cleft lip and palate (CLP), maxillary hypoplasia, severe maxillary arch constriction, severe occlusal collapse, and gingival recession. A comprehensive treatment approach was developed with maximum consideration of strong scar constriction and gingival recession; it included minimum maxillary arch expansion, maxillary advancement by distraction osteogenesis using an internal distraction device, and mandibular setback using sagittal split ramus osteotomy...
January 2019: Korean Journal of Orthodontics
https://read.qxmd.com/read/30603625/comparison-of-the-effects-of-rapid-maxillary-expansion-and-alternate-rapid-maxillary-expansion-and-constriction-protocols-followed-by-facemask-therapy
#2
Elvan Onem Ozbilen, Hanife Nuray Yilmaz, Nazan Kucukkeles
Objective: The aim of this retrospective study was to evaluate and compare the changes in the pharyngeal airway (PA), maxillary sinus volume, and skeletal parameters after rapid maxillary expansion (RME) and alternate rapid maxillary expansion and constriction (Alt-RAMEC) followed by facemask (FM) therapy. Methods: The records of 40 patients with skeletal Class III malocclusion due to maxillary retrognathism were collected, and the patients were assigned into two groups...
January 2019: Korean Journal of Orthodontics
https://read.qxmd.com/read/30603624/a-comparative-study-of-the-reproducibility-of-landmark-identification-on-posteroanterior-and-anteroposterior-cephalograms-generated-from-cone-beam-computed-tomography-scans
#3
Eui-Ri Na, Hussein Aljawad, Kyung-Min Lee, Hyeon-Shik Hwang
Objective: This in-vivo study aimed to compare landmark identification errors in anteroposterior (AP) and posteroanterior (PA) cephalograms generated from cone-beam computed tomography (CBCT) scan data in order to examine the feasibility of using AP cephalograms in clinical settings. Methods: AP and PA cephalograms were generated from CBCT scans obtained from 25 adults. Four experienced and four inexperienced examiners were selected depending on their experience levels in analyzing frontal cephalograms...
January 2019: Korean Journal of Orthodontics
https://read.qxmd.com/read/30603623/benefits-of-lateral-cephalogram-during-landmark-identification-on-posteroanterior-cephalograms
#4
Sel-Ae Hwang, Jae-Seo Lee, Hyeon-Shik Hwang, Kyung-Min Lee
Objective: Precise identification of landmarks on posteroanterior (PA) cephalograms is necessary when evaluating lateral problems such as facial asymmetry. The aim of the present study was to investigate whether the use of lateral (LA) cephalograms can reduce errors in landmark identification on PA cephalograms. Methods: Five examiners identified 16 landmarks (Cg, N, ANS, GT, Me, RO, Lo, FM, Z, Or, Zyg, Cd, NC, Ms, M, and Ag) on 32 PA cephalograms with and without LA cephalograms at the same time...
January 2019: Korean Journal of Orthodontics
https://read.qxmd.com/read/30603622/effect-of-different-combinations-of-bracket-archwire-and-ligature-on-resistance-to-sliding-and-axial-rotational-control-during-the-first-stage-of-orthodontic-treatment-an-in-vitro-study
#5
Huizhong Chen, Bing Han, Tianmin Xu
Objective: This study was performed to explore the effect of different bracket, archwire, and ligature combinations on resistance to sliding (RS) and rotational control in first-order angulation. Methods: Three types of brackets (multi-level low friction [MLF], self-ligating, and conventional brackets) coupled with four nickel-titanium archwires (0.012, 0.014, 0.016, and 0.018-inch diameter) and two stainless steel ligatures (0.20 and 0.25 mm) were tested in different first-order angulations (0°, 2°, 4°, 6°, 8°, 10°, 15°, 20°) by using an Instron universal mechanical machine in the dry state at room temperature...
January 2019: Korean Journal of Orthodontics
https://read.qxmd.com/read/30603621/surface-analysis-of-metal-clips-of-ceramic-self-ligating-brackets
#6
Kyung Sook Kim, Se Jik Han, Tae-Hee Lee, Tae-Joon Park, Samjin Choi, Yoon-Goo Kang, Ki-Ho Park
Objective: The aim of this study was to analyze the surface composition, roughness, and relative friction of metal clips from various ceramic self-ligating brackets. Methods: Six kinds of brackets were examined. The control group (mC) consisted of interactive metal self-ligating brackets while the experimental group (CC, EC, MA, QK, and WA) consisted of interactive ceramic self-ligating brackets. Atomic force microscopy-lateral force microscopy and scanning electron microscopy-energy-dispersive X-ray spectroscopy were used to analyze the surface of each bracket clip...
January 2019: Korean Journal of Orthodontics
https://read.qxmd.com/read/30603620/influence-of-heritability-on-craniofacial-soft-tissue-characteristics-of-monozygotic-twins-dizygotic-twins-and-their-siblings-using-falconer-s-method-and-principal-components-analysis
#7
Jeongmin Song, Hwa Sung Chae, Jeong Won Shin, Joohon Sung, Yun-Mi Song, Seung-Hak Baek, Young Ho Kim
Objective: The purpose of this study was to investigate the influence of heritability on the craniofacial soft tissue cephalometric characteristics of monozygotic (MZ) twins, dizygotic (DZ) twins, and their siblings (SIB). Methods: The samples comprised Korean adult twins and their siblings (mean age, 39.8 years; MZ group, n = 36 pairs; DZ group, n = 13 pairs of the same gender; and SIB group, n = 26 pairs of the same gender). Thirty cephalometric variables were measured to characterize facial profile, facial height, soft-tissue thickness, and projection of nose and lip...
January 2019: Korean Journal of Orthodontics
https://read.qxmd.com/read/30603619/reader-s-forum
#8
COMMENT
Sun Mi Kwon
No abstract text is available yet for this article.
January 2019: Korean Journal of Orthodontics
https://read.qxmd.com/read/30450334/list-of-the-international-reviewers-in-2018
#9
EDITORIAL
(no author information available yet)
No abstract text is available yet for this article.
November 2018: Korean Journal of Orthodontics
https://read.qxmd.com/read/30450333/comparison-of-clinical-and-histological-characteristics-of-orthodontic-tooth-movement-into-recent-and-healed-extraction-sites-combined-with-corticotomy-in-rats
#10
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://read.qxmd.com/read/30450332/association-between-genetic-polymorphisms-and-external-apical-root-resorption-a-systematic-review-and-meta-analysis
#11
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://read.qxmd.com/read/30450331/effects-of-prestretch-on-stress-relaxation-and-permanent-deformation-of-orthodontic-synthetic-elastomeric-chains
#12
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://read.qxmd.com/read/30450330/colorimetric-evaluation-of-white-spot-lesions-following-external-bleaching-with-fluoridation-an-in-vitro-study
#13
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://read.qxmd.com/read/30450329/evaluation-of-changes-in-the-maxillary-alveolar-bone-after-incisor-intrusion
#14
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://read.qxmd.com/read/30450328/cone-beam-computed-tomography-analysis-of-transverse-dental-compensation-in-patients-with-skeletal-class-iii-malocclusion-and-facial-asymmetry
#15
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://read.qxmd.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
#16
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://read.qxmd.com/read/30450326/reader-s-forum
#17
COMMENT
Ji-Young Kim
No abstract text is available yet for this article.
November 2018: Korean Journal of Orthodontics
https://read.qxmd.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
#18
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://read.qxmd.com/read/30206533/effects-of-continuous-force-application-for-extrusive-tipping-movement-on-periapical-root-resorption-in-the-rat-mandibular-first-molar
#19
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://read.qxmd.com/read/30206532/evaluation-of-buccolingual-molar-inclinations-among-different-vertical-facial-types
#20
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
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