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Korean Journal of Orthodontics

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https://www.readbyqxmd.com/read/28127541/trends-of-articles-published-in-the-korean-journal-of-orthodontics-and-the-launch-of-a-new-online-publication-system
#1
EDITORIAL
Hyung-Seon Baik
No abstract text is available yet for this article.
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28127540/total-intrusion-and-distalization-of-the-maxillary-arch-to-improve-smile-esthetics
#2
Eui Seon Baek, Soonshin Hwang, Kyung-Ho Kim, Chooryung J Chung
This case report illustrates the successful treatment of a patient with skeletal Class II malocclusion and an unesthetic smile involving excessive gingival display and large buccal corridors. By applying dual buccal interradicular miniscrews, total intrusion of the maxillary dentition along with distalization was induced to improve both the occlusion and smile esthetics. In addition to the conventional cephalometric superimposition, three-dimensional superimposition was performed and evaluated to validate the treatment outcome...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28127539/the-genial-tubercle-a-prospective-novel-landmark-for-the-diagnosis-of-mandibular-asymmetry
#3
Seung-Youp Lee, Dong-Soon Choi, Insan Jang, Geun-Su Song, Bong-Kuen Cha
INTRODUCTION: Identifying menton (Me) on posteroanterior cephalograms and three-dimensional (3D) cone-beam computed tomography (CBCT) images is difficult, because the midpoint of the symphyseal area is not identifiable after the mandibular symphysis fuses at an early age. The aim of this study was to evaluate the reliability of the identification of the genial tubercle (GT) in patients with mandibular asymmetry and to compare it with that of the traditional landmark, Me. METHODS: The samples comprised 20 CBCT images of adults with mandibular asymmetry...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28127538/cone-beam-computed-tomography-for-the-assessment-of-root-crown-ratios-of-the-maxillary-and-mandibular-incisors-in-a-korean-population
#4
Sung-Hwan Choi, Jung-Suk Kim, Cheol-Soon Kim, Hyung-Seog Yu, Chung-Ju Hwang
OBJECTIVE: This retrospective, cross-sectional study aimed to establish reference data for normal crown and root lengths and the root-crown ratios (R/C ratios) for the mature maxillary and mandibular incisors in a Korean population by using cone-beam computed tomography (CBCT). METHODS: We included 672 Korean patients (141 men and 531 women; mean age, 27.2 ± 7.7 years) who underwent CBCT examinations during various dental treatments. Crown and root lengths and the R/C ratios of the maxillary and mandibular incisors were measured using CBCT data, which were analyzed to detect significant differences between demographic factors as well as sagittal and vertical skeletal or occlusal relationships...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28127537/factors-affecting-smile-esthetics-in-adults-with-different-types-of-anterior-overjet-malocclusion
#5
Hsin-Chung Cheng, Pei-Chin Cheng
OBJECTIVE: This study aimed to quantitatively assess the relationship of smile esthetic variables with various types of malocclusion, and identify the cephalometric factors affecting smile measurements. METHODS: This retrospective study included 106 patients who were treated with retention at the orthodontic department of Taipei Medical University Hospital. Hard-tissue variables were measured using lateral cephalographic tracings, and nine smile esthetic variables were measured using facial photographs...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28127536/finite-element-analysis-of-the-center-of-resistance-of-the-mandibular-dentition
#6
A-Ra Jo, Sung-Seo Mo, Kee-Joon Lee, Sang-Jin Sung, Youn-Sic Chun
OBJECTIVE: The aim of this study was to investigate the three-dimensional (3D) position of the center of resistance of 4 mandibular anterior teeth, 6 mandibular anterior teeth, and the complete mandibular dentition by using 3D finite-element analysis. METHODS: Finite-element models included the complete mandibular dentition, periodontal ligament, and alveolar bone. The crowns of teeth in each group were fixed with buccal and lingual arch wires and lingual splint wires to minimize individual tooth movement and to evenly disperse the forces onto the teeth...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28127535/mandibular-arch-orthodontic-treatment-stability-using-passive-self-ligating-and-conventional-systems-in-adults-a-randomized-controlled-trial
#7
Norma Ab Rahman, Mang Chek Wey, Siti Adibah Othman
OBJECTIVE: This randomized controlled trial aimed to compare the stability of mandibular arch orthodontic treatment outcomes between passive self-ligating and conventional systems during 6 months of retention. METHODS: Fortyseven orthodontic patients with mild to moderate crowding malocclusions not requiring extraction were recruited based on inclusion criteria. Patients (mean age 21.58 ± 2.94 years) were randomized into two groups to receive either passive self-ligating (Damon® 3MX, n = 23) or conventional system (Gemini MBT, n = 24) orthodontic treatment...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28127534/incorporation-of-silver-nanoparticles-on-the-surface-of-orthodontic-microimplants-to-achieve-antimicrobial-properties
#8
Adith Venugopal, Nallal Muthuchamy, Harsh Tejani, Anantha-Iyengar Gopalan, Kwang-Pill Lee, Heon-Jin Lee, Hee Moon Kyung
OBJECTIVE: Microbial aggregation around dental implants can lead to loss/loosening of the implants. This study was aimed at surface treating titanium microimplants with silver nanoparticles (AgNPs) to achieve antibacterial properties. METHODS: AgNP-modified titanium microimplants (Ti-nAg) were prepared using two methods. The first method involved coating the microimplants with regular AgNPs (Ti-AgNP) and the second involved coating them with a AgNP-coated biopolymer (Ti-BP-AgNP)...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28127533/reader-s-forum
#9
COMMENT
Il-Hyung Yang
No abstract text is available yet for this article.
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896215/list-of-the-international-reviewers-in-2016
#10
EDITORIAL
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896214/a-case-of-severe-mandibular-retrognathism-with-bilateral-condylar-deformities-treated-with-le-fort-i-osteotomy-and-two-advancement-genioplasty-procedures
#11
Masahiro Nakamura, Takeshi Yanagita, Tatsushi Matsumura, Takashi Yamashiro, Seiji Iida, Hiroshi Kamioka
We report a case involving a young female patient with severe mandibular retrognathism accompanied by mandibular condylar deformity that was effectively treated with Le Fort I osteotomy and two genioplasty procedures. At 9 years and 9 months of age, she was diagnosed with Angle Class III malocclusion, a skeletal Class II jaw relationship, an anterior crossbite, congenital absence of some teeth, and a left-sided cleft lip and palate. Although the anterior crossbite and narrow maxillary arch were corrected by interceptive orthodontic treatment, severe mandibular hypogrowth resulted in unexpectedly severe mandibular retrognathism after growth completion...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896213/bone-cutting-capacity-and-osseointegration-of-surface-treated-orthodontic-mini-implants
#12
Ho-Young Kim, Sang-Cheol Kim
OBJECTIVE: The objective of the study was to evaluate the practicality and the validity of different surface treatments of self-drilling orthodontic mini-implants (OMIs) by comparing bone cutting capacity and osseointegration. METHODS: Self-drilling OMIs were surface-treated in three ways: Acid etched (Etched), resorbable blasting media (RBM), partially resorbabla balsting media (Hybrid). We compared the bone cutting capacity by measuring insertion depths into artificial bone (polyurethane foam)...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896212/effect-of-slow-forced-eruption-on-the-vertical-levels-of-the-interproximal-bone-and-papilla-and-the-width-of-the-alveolar-ridge
#13
Eun-Young Kwon, Ju-Youn Lee, Jeomil Choi
OBJECTIVE: Forced eruption has been proposed for the reconstruction of deficient bone and soft tissue. The aim of this study was to examine the changes in the alveolar ridge width and the vertical levels of the interproximal bone and papilla following forced eruption. METHODS: Patients whose hopeless maxillary anterior teeth were expected to undergo severe bone resorption and soft tissue recession upon extraction were recruited. In addition, patients whose maxillary anterior teeth required forced eruption for restoration due to tooth fracture or dental caries were included...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896211/comparison-of-postoperative-changes-in-the-distal-and-proximal-segments-between-conventional-and-sliding-mini-plate-fixation-following-mandibular-setback
#14
Seong-Sik Kim, Kyoung-Ho Kwak, Ching-Chang Ko, Soo-Byung Park, Woo-Sung Son, Yong-Il Kim
OBJECTIVE: The purpose of the present study was to evaluate the postoperative three-dimensional (3D) changes in the proximal segments after mandibular setback sagittal split ramus osteotomy and to compare the changes between the conventional mini-plate fixation and semi-rigid sliding plate fixation. METHODS: Cone-beam computed tomography (CBCT) images were used to evaluate the postoperative 3D changes in the proximal segments during the healing process. CBCT images were superimposed using the symphysis and the lower anterior mandible as references...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896210/comparison-of-the-bonding-strengths-of-second-and-third-generation-light-emitting-diode-light-curing-units
#15
Hee-Min Lee, Sang-Cheol Kim, Kyung-Hwa Kang, Na-Young Chang
OBJECTIVE: With the introduction of third-generation light-emitting diodes (LEDs) in dental practice, it is necessary to compare their bracket-bonding effects, safety, and efficacy with those of the second-generation units. METHODS: In this study, 80 extracted human premolars were randomly divided into eight groups of 10 samples each. Metal or polycrystalline ceramic brackets were bonded on the teeth using second- or third-generation LED light-curing units (LCUs), according to the manufacturers' instructions...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896209/reference-points-suitable-for-evaluation-of-the-additional-arch-length-required-for-leveling-the-curve-of-spee
#16
Yong-Hwa Cho, Sung-Hoon Lim, Sung-Nam Gang
OBJECTIVE: The additional arch length required for leveling (AALL) the curve of Spee (COS) can be estimated by subtracting the two-dimensional (2D) arch circumference, which is the projection of the three-dimensional (3D) arch circumference onto the occlusal plane, from the 3D arch circumference, which represents the arch length after leveling the COS. The purpose of this study was to determine whether the cusp tips or proximal maximum convexities are more appropriate reference points for estimating the AALL...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896208/relationship-between-maturation-indices-and-morphology-of-the-midpalatal-suture-obtained-using-cone-beam-computed-tomography-images
#17
Hong-Ik Jang, Sang-Cheol Kim, Jong-Moon Chae, Kyung-Hwa Kang, Jin-Woo Cho, Na-Young Chang, Keun-Young Lee, Jin-Hyoung Cho
OBJECTIVE: The purpose of this study was to determine whether predicting maturation of the midpalatal suture is possible by classifying its morphology on cone-beam computed tomography (CBCT) images and to investigate relationships with other developmental age indices. METHODS: The morphology of the midpalatal suture was assessed by using CBCT images of 99 patients. Axial plane images of the midpalatal suture were classified into five stages according to the classification scheme...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27896207/reader-s-forum
#18
COMMENT
Seung-Youp Lee
No abstract text is available yet for this article.
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27668196/diagnostic-methods-for-assessing-maxillary-skeletal-and-dental-transverse-deficiencies-a-systematic-review
#19
REVIEW
Dena Sawchuk, Kris Currie, Manuel Lagravere Vich, Juan Martin Palomo, Carlos Flores-Mir
OBJECTIVE: To evaluate the accuracy and reliability of the diagnostic tools available for assessing maxillary transverse deficiencies. METHODS: An electronic search of three databases was performed from their date of establishment to April 2015, with manual searching of reference lists of relevant articles. Articles were considered for inclusion if they reported the accuracy or reliability of a diagnostic method or evaluation technique for maxillary transverse dimensions in mixed or permanent dentitions...
September 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27668195/quantitative-evaluation-of-midpalatal-suture-maturation-via-fractal-analysis
#20
Kyoung Ho Kwak, Seong Sik Kim, Yong-Il Kim, Yong-Deok Kim
OBJECTIVE: The purpose of this study was to determine whether the results of fractal analysis can be used as criteria for midpalatal suture maturation evaluation. METHODS: The study included 131 subjects aged over 18 years of age (range 18.1-53.4 years) who underwent cone-beam computed tomography. Skeletonized images of the midpalatal suture were obtained via image processing software and used to calculate fractal dimensions. Correlations between maturation stage and fractal dimensions were calculated using Spearman's correlation coefficient...
September 2016: Korean Journal of Orthodontics
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