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Korean Journal of Orthodontics

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https://www.readbyqxmd.com/read/28337423/immediate-changes-in-the-mandibular-dentition-after-maxillary-molar-distalization-using-headgear
#1
Sung-Ja Kang, Hyun-Hee Kim, Hyeon-Shik Hwang, Kyung-Min Lee
The purpose of this study was to investigate immediate changes in the mandibular dentition after maxillary molar distalization using headgear in non-growing patients. Sixteen patients (mean age, 18.9 ± 2.0 years) with Class II molar relationship and crowding were included in the present study. To correct the molar relationship, headgear was used for maxillary molar distalization. Cone-beam computed tomography-generated half-cephalograms (CG Cephs) and dental casts were used to evaluate dental changes for each subject before and immediately after molar distalization using headgear...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28337422/the-combined-use-of-computer-guided-minimally-invasive-flapless-corticotomy-and-clear-aligners-as-a-novel-approach-to-moderate-crowding-a-case-report
#2
Michele Cassetta, Federica Altieri, Stefano Pandolfi, Matteo Giansanti
The aim of this case report was to describe an innovative orthodontic treatment method that combined surgical and orthodontic techniques. The novel method was used to achieve a positive result in a case of moderate crowding by employing a computer-guided piezocision procedure followed by the use of clear aligners. A 23-year-old woman had a malocclusion with moderate crowding. Her periodontal indices, oral health-related quality of life (OHRQoL), and treatment time were evaluated. The treatment included interproximal corticotomy cuts extending through the entire thickness of the cortical layer, without a full-thickness flap reflection...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28337421/zygomatic-miniplates-for-skeletal-anchorage-in-orthopedic-correction-of-class-iii-malocclusion-a-controlled-clinical-trial
#3
Erdal Bozkaya, Alime Sema Yüksel, Süleyman Bozkaya
OBJECTIVE: To evaluate the effects of facemask therapy, which was anchored from the zygomatic buttresses of the maxilla by using two miniplates, in skeletal Class III patients with maxillary deficiency. METHODS: Eighteen skeletal Class III patients (10 girls and 8 boys; mean age, 11.4 ± 1.28 years) with maxillary deficiency were treated using miniplate-anchored facemasks, and their outcomes were compared with those of a Class III control group (9 girls and 9 boys; mean age, 10...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28337420/effect-of-frontal-facial-type-and-sex-on-preferred-chin-projection
#4
Jin-Young Choi, Taeyun Kim, Hyung-Mo Kim, Sang-Hoon Lee, Il-Sik Cho, Seung-Hak Baek
OBJECTIVE: To investigate the effects of frontal facial type (FFT) and sex on preferred chin projection (CP) in three-dimensional (3D) facial images. METHODS: Six 3D facial images were acquired using a 3D facial scanner (euryprosopic [Eury-FFT], mesoprosopic [Meso-FFT], and leptoprosopic [Lepto-FFT] for each sex). After normal CP in each 3D facial image was set to 10° of the facial profile angle (glabella-subnasale-pogonion), CPs were morphed by gradations of 2° from normal (moderately protrusive [6°], slightly protrusive [8°], slightly retrusive [12°], and moderately retrusive [14°])...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28337419/smile-esthetics-evaluation-of-long-term-changes-in-the-transverse-dimension
#5
Sercan Akyalcin, Kenner Misner, Jeryl D English, Wick G Alexander, J Moody Alexander, Ron Gallerano
OBJECTIVE: To analyze the long-term changes in maxillary arch widths and buccal corridor ratios in orthodontic patients treated with and without premolar extractions. METHODS: The study included 53 patients who were divided into the extraction (n = 28) and nonextraction (n = 25) groups. These patients had complete orthodontic records from the pretreatment (T1), posttreatment (T2), and postretention (T3) periods. Their mean retention and postretention times were 4 years 2 months and 17 years 8 months, respectively...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28337418/a-three-dimensional-photogrammetric-analysis-of-the-facial-esthetics-of-the-miss-korea-pageant-contestants
#6
Kab Soo Jang, Mohamed Bayome, Jae Hyun Park, Ki-Ho Park, Hong-Beom Moon, Yoon-Ah Kook
OBJECTIVE: The aims of this study were to measure and compare the facial dimensions of the Miss Korea pageant contestants and a selected group of women from the general population by using three-dimensional (3D) image analysis, as well as to compare various facial ratios to the golden ratio within each group. METHODS: Three-dimensional images of 52 Miss Korea pageant contestants (MK group) and 41 young female adults selected from the general population (GP group) were acquired...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28337417/skeletal-and-dentoalveolar-changes-after-miniscrew-assisted-rapid-palatal-expansion-in-young-adults-a-cone-beam-computed-tomography-study
#7
Jung Jin Park, Young-Chel Park, Kee-Joon Lee, Jung-Yul Cha, Ji Hyun Tahk, Yoon Jeong Choi
OBJECTIVE: The aim of this study was to evaluate the skeletal and dentoalveolar changes after miniscrew-assisted rapid palatal expansion (MARPE) in young adults by cone-beam computed tomography (CBCT). METHODS: This retrospective study included 14 patients (mean age, 20.1 years; range, 16-26 years) with maxillary transverse deficiency treated with MARPE. Skeletal and dentoalveolar changes were evaluated using CBCT images acquired before and after expansion. Statistical analyses were performed using paired t-test or Wilcoxon signed-rank test according to normality of the data...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28337416/reader-s-forum
#8
COMMENT
Hyub-Soo Lee
No abstract text is available yet for this article.
March 2017: Korean Journal of Orthodontics
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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