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Korean Journal of Orthodontics

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https://www.readbyqxmd.com/read/27896215/list-of-the-international-reviewers-in-2016
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/27668194/the-effects-of-alveolar-bone-loss-and-miniscrew-position-on-initial-tooth-displacement-during-intrusion-of-the-maxillary-anterior-teeth-finite-element-analysis
#12
Sun-Mi Cho, Sung-Hwan Choi, Sang-Jin Sung, Hyung-Seog Yu, Chung-Ju Hwang
OBJECTIVE: The aim of this study was to determine the optimal loading conditions for pure intrusion of the six maxillary anterior teeth with miniscrews according to alveolar bone loss. METHODS: A three-dimensional finite element model was created for a segment of the six anterior teeth, and the positions of the miniscrews and hooks were varied after setting the alveolar bone loss to 0, 2, or 4 mm. Under 100 g of intrusive force, initial displacement of the individual teeth in three directions and the degree of labial tilting were measured...
September 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27668193/evaluation-of-stability-after-pre-orthodontic-orthognathic-surgery-using-cone-beam-computed-tomography-a-comparison-with-conventional-treatment
#13
Hye-Rim Ann, Young-Soo Jung, Kee-Joon Lee, Hyoung-Seon Baik
OBJECTIVE: The aim of this study was to evaluate the skeletal and dental changes after intraoral vertical ramus osteotomy (IVRO) with and without presurgical orthodontics by using cone-beam computed tomography (CBCT). METHODS: This retrospective cohort study included 24 patients (mean age, 22.1 years) with skeletal Class III malocclusion who underwent bimaxillary surgery with IVRO. The patients were divided into the preorthodontic orthognathic surgery (POGS) group (n = 12) and conventional surgery (CS) group (n = 12)...
September 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27668192/a-three-dimensional-finite-element-analysis-of-molar-distalization-with-a-palatal-plate-pendulum-and-headgear-according-to-molar-eruption-stage
#14
Ju-Man Kang, Jae Hyun Park, Mohamed Bayome, Moonbee Oh, Chong Ook Park, Yoon-Ah Kook, Sung-Seo Mo
OBJECTIVE: This study aimed to (1) evaluate the effects of maxillary second and third molar eruption status on the distalization of first molars with a modified palatal anchorage plate (MPAP), and (2) compare the results to the outcomes of the use of a pendulum and that of a headgear using three-dimensional finite element analysis. METHODS: Three eruption stages were established: an erupting second molar at the cervical one-third of the first molar root (Stage 1), a fully erupted second molar (Stage 2), and an erupting third molar at the cervical one-third of the second molar root (Stage 3)...
September 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27668191/three-dimensional-evaluation-of-tooth-movement-in-class-ii-malocclusions-treated-without-extraction-by-orthodontic-mini-implant-anchorage
#15
Dler Ali, Hnd Mohammed, Seung-Hwan Koo, Kyung-Hwa Kang, Sang-Cheol Kim
OBJECTIVE: The aim of this study was to analyze tooth movement and arch width changes in maxillary dentition following nonextraction treatment with orthodontic mini-implant (OMI) anchorage in Class II division 1 malocclusions. METHODS: Seventeen adult patients diagnosed with Angle's Class II division 1 malocclusion were treated by nonextraction with OMIs as anchorage for distalization of whole maxillary dentition. Three-dimensional virtual maxillary models were superimposed with the best-fit method at the pretreatment and post-treatment stages...
September 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27668190/sphenoid-bone-changes-in-rapid-maxillary-expansion-assessed-with-cone-beam-computed-tomography
#16
Lucas S Stepanko, Manuel O Lagravère
OBJECTIVE: Rapid maxillary expansion (RME) is used to expand the maxilla and increase arch perimeter; yet, there are few reports on its effects on the sphenoid bone. With cone-beam computed topography (CBCT), it is possible to visualize sphenoid bone changes. The purpose of this study was to investigate sphenoid bone changes observed in conjunction with RME treatments, using CBCT. METHODS: Sixty patients (34 women and 26 men, aged 11-17 years) underwent RME as part of their orthodontic treatment...
September 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27668189/reader-s-forum
#17
COMMENT
Joon Im
No abstract text is available yet for this article.
September 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27478802/nonsurgical-correction-of-a-severe-anterior-deep-overbite-accompanied-by-a-gummy-smile-and-posterior-scissor-bite-using-a-miniscrew-assisted-straight-wire-technique-in-an-adult-high-angle-case
#18
Xue-Dong Wang, Jie-Ni Zhang, Da-Wei Liu, Fei-Fei Lei, Yan-Heng Zhou
In the present report, we describe the successful use of miniscrews to achieve vertical control in combination with the conventional sliding MBT™ straight-wire technique for the treatment of a 26-year-old Chinese woman with a very high mandibular plane angle, deep overbite, retrognathic mandible with backward rotation, prognathic maxilla, and gummy smile. The patient exhibited skeletal Class II malocclusion. Orthodontic miniscrews were placed in the maxillary anterior and posterior segments to provide rigid anchorage and vertical control through intrusion of the incisors and molars...
July 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27478801/finite-element-analysis-of-maxillary-incisor-displacement-during-en-masse-retraction-according-to-orthodontic-mini-implant-position
#19
Jae-Won Song, Joong-Ki Lim, Kee-Joon Lee, Sang-Jin Sung, Youn-Sic Chun, Sung-Seo Mo
OBJECTIVE: Orthodontic mini-implants (OMI) generate various horizontal and vertical force vectors and moments according to their insertion positions. This study aimed to help select ideal biomechanics during maxillary incisor retraction by varying the length in the anterior retraction hook (ARH) and OMI position. METHODS: Two extraction models were constructed to analyze the three-dimentional finite element: a first premolar extraction model (Model 1, M1) and a residual 1-mm space post-extraction model (Model 2, M2)...
July 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27478800/comparisons-of-orthodontic-root-resorption-under-heavy-and-jiggling-reciprocating-forces-during-experimental-tooth-movement-in-a-rat-model
#20
Takuji Hikida, Masaru Yamaguchi, Mami Shimizu, Jun Kikuta, Tomokazu Yoshino, Kazutaka Kasai
OBJECTIVE: Root mobility due to reciprocating movement of the tooth (jiggling) may exacerbate orthodontic root resorption (ORR). "Jiggling" describes mesiodistal or buccolingual movement of the roots of the teeth during orthodontic treatment. In the present study, buccolingual movement is described as "jiggling." We aimed to investigate the relationship between ORR and jiggling and to test for positive cell expression in odontoclasts in resorbed roots during experimental tooth movement (jiggling) in vivo...
July 2016: Korean Journal of Orthodontics
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