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Author Hoon Joo Yang

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Quantitative Augmented Reality-Assisted Free-Hand Orthognathic Surgery Using Electromagnetic Tracking and Skin-Attached Dynamic Reference.

Seong-Ha Kim, Sang-Jeong Lee, Min-Hyuk Choi, Hoon Joo Yang, Jo-Eun Kim, Kyung-Hoe Huh, Sam-Sun Lee, Min-Suk Heo, Soon Jung Hwang, Won-Jin Yi,

The purpose of this study was to develop a quantitative AR-assisted free-hand orthognathic surgery method using electromagnetic (EM) tracking and skin-attached dynamic reference. The authors proposed a novel, simplified, and convenient workflow for augmented reality (AR)-assisted orthognathic surgery based on optical marker-less tracking, a comfortable display, and a non-invasive, skin-attached ... Read more >>

J Craniofac Surg (The Journal of craniofacial surgery)
[2020, 31(8):2175-2181]

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Effects of Chewing Exerciser on the Recovery of Masticatory Function Recovery after Orthognathic Surgery: A Single-Center Randomized Clinical Trial, a Preliminary Study.

Hoon Joo Yang, Ik Jae Kwon, Akram Abdo Almansoori, Yoojung Son, Bongju Kim, Soung-Min Kim, Jong-Ho Lee,

Background and Objectives: The aim of this study was to evaluate the effects of the chewing exerciser (CE) on the functional recovery of the masticatory muscles after orthognathic surgery. Material and Methods: This randomized clinical trial was conducted in patients undergoing bimaxillary orthognathic surgery including bilateral sagittal split ramus osteotomy. ... Read more >>

Medicina (Kaunas) (Medicina (Kaunas, Lithuania))
[2020, 56(9):]

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Quantitative Augmented Reality-Assisted Free-Hand Orthognathic Surgery Using Electromagnetic Tracking and Skin-Attached Dynamic Reference.

Seong-Ha Kim, Sang-Jeong Lee, Min-Hyuk Choi, Hoon Joo Yang, Jo-Eun Kim, Kyung-Hoe Huh, Sam-Sun Lee, Min-Suk Heo, Soon Jung Hwang, Won-Jin Yi,

The purpose of this study was to develop a quantitative AR-assisted free-hand orthognathic surgery method using electromagnetic (EM) tracking and skin-attached dynamic reference. The authors proposed a novel, simplified, and convenient workflow for augmented reality (AR)-assisted orthognathic surgery based on optical marker-less tracking, a comfortable display, and a non-invasive, skin-attached ... Read more >>

J Craniofac Surg (The Journal of craniofacial surgery)
[2020, :]

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Implantable electrical stimulation bioreactor with liquid crystal polymer-based electrodes for enhanced bone regeneration at mandibular large defects in rabbit.

Chaebin Kim, Hoon Joo Yang, Tae Hyung Cho, Beom Seok Lee, Tae Mok Gwon, Soowon Shin, In Sook Kim, Sung June Kim, Soon Jung Hwang,

The osseous regeneration of large bone defects is still a major clinical challenge in maxillofacial and orthopedic surgery. Previous studies demonstrated that biphasic electrical stimulation (ES) stimulates bone formation; however, polyimide electrode should be removed after regeneration. This study presents an implantable electrical stimulation bioreactor with electrodes based on liquid ... Read more >>

Med Biol Eng Comput (Medical & biological engineering & computing)
[2020, 58(2):383-399]

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Horizontal change of philtrum after orthognathic surgery in patients with facial asymmetry.

Yewon Joh, Hyun Soo Park, Hoon Joo Yang, Soon Jung Hwang,

Background:Soft tissue asymmetry such as lip canting or deviation of the philtrum is an important influencing factor for unbalanced facial appearance. Lip canting could be improved by the correction of the occlusal canting or positional change of the mentum. Although there are many studies about changes of lip canting, however, ... Read more >>

Maxillofac Plast Reconstr Surg (Maxillofacial plastic and reconstructive surgery)
[2019, 41(1):48]

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Effects of 17β-Estradiol Deficiency and Mechanical Overload on Osseous Changes in the Rat Temporomandibular Joint.

Hoon Joo Yang, Soon Jung Hwang,

PURPOSE:To deduce the contributing factors to idiopathic condylar resorption in young female patients, we hypothesized that 17β-estradiol (E2) deficiency would cause arthritic changes in the mandibular condyle under mechanical overloading in a rat model. We also hypothesized that osseous changes in the microstructure by the combination of E2 deficiency and ... Read more >>

J Oral Maxillofac Surg (Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons)
[2020, 78(2):214.e1-214.e14]

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Void space and long-term volumetric changes of maxillary sinus floor augmentation with comparison between hydroxyapatite soaked with bone morphogenetic protein 2 and anorganic bovine xenograft alone.

Hoon Joo Yang, Soon Jung Hwang,

PURPOSE:We hypothesized that the void volume after maxillary sinus floor augmentation (MSFA) with recombinant human bone morphogenetic protein-2 (rhBMP-2) would be larger than that without rhBMP-2, and filled with bone in the long term. The aim of this study was to analyze the occurrence of void space and long-term volumetric ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2019, 47(10):1626-1632]

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Alternative techniques for failure of conventional inferior alveolar nerve block.

Choi Ryang Lee, Hoon Joo Yang,

Successful local anesthesia in dental treatment is the most important prerequisite for pain control of patients. However, unlike that in the maxilla, it is difficult to administer local anesthesia in the mandible, and the success rate of conventional inferior alveolar nerve block (IANB) is only 80-85%. It is attributed to ... Read more >>

(Journal of dental anesthesia and pain medicine)
[2019, 19(3):125-134]

Cited: 2 times

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Spontaneous bone regeneration after surgical extraction of a horizontally impacted mandibular third molar: a retrospective panoramic radiograph analysis.

Eugene Kim, Mi Young Eo, Truc Thi Hoang Nguyen, Hoon Joo Yang, Hoon Myoung, Soung Min Kim,

Background:The mandibular third molar (M3) is typically the last permanent tooth to erupt because of insufficient space and thick soft tissues covering its surface. Problems such as alveolar bone loss, development of a periodontal pocket, exposure of cementum, gingival recession, and dental caries can be found in the adjacent second ... Read more >>

Maxillofac Plast Reconstr Surg (Maxillofacial plastic and reconstructive surgery)
[2019, 41(1):4]

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Accuracy of 3D reproduction of natural head position using three different manual reorientation methods compared to 3D software.

Hoon Joo Yang, Jeong Joon Han, Soon Jung Hwang,

PURPOSE:The aim of this study was to analyze the positional differences of three-dimensional (3D) natural head positions (NHPs) reproduced by three different manual reorientation methods without special software by the Pose from Orthography and Scaling with ITerations (POSIT) method. METHODS:Five ceramic markers were attached to each of 12 patients' faces, ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2018, 46(9):1625-1630]

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Real-time augmented model guidance for mandibular proximal segment repositioning in orthognathic surgery, using electromagnetic tracking.

Sang-Jeong Lee, Hoon Joo Yang, Min-Hyuk Choi, Sang-Yoon Woo, Kyung-Hoe Huh, Sam-Sun Lee, Min-Suk Heo, Soon-Chul Choi, Soon Jung Hwang, Won-Jin Yi,

It is essential to reposition the mandibular proximal segment (MPS) as close to its original position as possible during orthognathic surgery. Conventional methods cannot pinpoint the exact position of the condyle in the fossa in real time during repositioning. In this study, based on an improved registration method and a ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2019, 47(1):127-137]

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Implantable electrical stimulation bioreactor with liquid crystal polymer based electrodes for enhanced bone regeneration at mandibular large defects in rabbit

Chaebin Kim, Hoon Joo Yang, Tae Hyung Cho, Beom Seok Lee, Tae Mok Gwon, Soowon Shin, In Sook Kim, Sung June Kim, Soon Jung Hwang,

Abstract The osseous regeneration of large bone defects is still a major clinical challenge in maxillofacial and orthopedic surgery. Our previous studies demonstrated that electrical stimulation (ES) with biphasic current pulse showed proliferative effects on bone cells and enhanced secretion of bone-forming growth factors. This study presents an implantable electrical ... Read more >>

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Relapse related to pushing and rebounding action in maxillary anterior downgraft with mandibular setback surgery.

Hoon Joo Yang, Soon Jung Hwang,

PURPOSE:Maxillary downgraft (MD) and mandibular setback (MS) are problematic procedures in terms of postoperative stability. While the amount of intraoperative clockwise rotation (CWR) of the proximal segment (PS) after MS combined with MD has a positive correlation with the amount of MD, mandibular relapse after MS with MD in relation ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2018, 46(8):1336-1342]

Cited: 0 times

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Repositioning of the Maxillomandibular Complex Using Maxillary Template Adjusted Only by Maxillary Surface Configuration Without an Intermediate Splint in Orthognathic Surgery.

Jeong Joon Han, Hoon Joo Yang, Soon Jung Hwang,

Accurate repositioning of the maxillary and mandibular segment is essential to improve esthetics and function in orthognathic surgery. With the improvement of three-dimensional imaging technology and computer-aided design and manufacturing techniques, various computer-aided design and manufacturing templates have been developed as alternatives to the traditional error-prone and time-consuming intermediate splint. ... Read more >>

J Craniofac Surg (The Journal of craniofacial surgery)
[2016, 27(6):1550-1553]

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Virtual skeletal complex model- and landmark-guided orthognathic surgery system.

Sang-Jeong Lee, Sang-Yoon Woo, Kyung-Hoe Huh, Sam-Sun Lee, Min-Suk Heo, Soon-Chul Choi, Jeong Joon Han, Hoon Joo Yang, Soon Jung Hwang, Won-Jin Yi,

In this study, correction of the maxillofacial deformities was performed by repositioning bone segments to an appropriate location according to the preoperative planning in orthognathic surgery. The surgery was planned using the patient's virtual skeletal models fused with optically scanned three-dimensional dentition. The virtual maxillomandibular complex (MMC) model of the ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2016, 44(5):557-568]

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Aesthetic closure of the donor site of a radial forearm free flap with two local curved skin grafts.

Soung Min Kim, Jung Min Park, Hoon Joo Yang, Hoon Myoung, Suk Keun Lee, Jong Ho Lee,

The authors have designed an aesthetic and effective coverage technique using local curved skin grafts along with vascular pedicles without additional skin incisions to solve the disadvantages of skin coverage problem of donor site defect after radial forearm free flap (RFFF) harvesting. This has, to the authors' knowledge, not been ... Read more >>

J Plast Surg Hand Surg (Journal of plastic surgery and hand surgery)
[2016, 50(3):184-186]

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Pulsed Electromagnetic Fields Enhance Bone Morphogenetic Protein-2 Dependent-Bone Regeneration.

Hoon Joo Yang, Ri Youn Kim, Soon Jung Hwang,

The use of recombinant human bone morphogenetic protein-2 (rhBMP-2) for the purpose of promoting bone regeneration is emerging; however, the high dose of rhBMP-2 required in humans is accompanied by several limitations, including bone resorption and swelling. To reduce the dose of rhBMP-2 required, the applicability of pulsed electromagnetic fields ... Read more >>

Tissue Eng Part A (Tissue engineering. Part A)
[2015, 21(19-20):2629-2637]

Cited: 5 times

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Bone mineral density and mandibular advancement as contributing factors for postoperative relapse after orthognathic surgery in patients with preoperative idiopathic condylar resorption: a prospective study with preliminary 1-year follow-up.

Hoon Joo Yang, Soon Jung Hwang,

The aim of this study was to analyze contributing factors for postoperative relapse after orthognathic surgery in patients with preoperative idiopathic condylar resorption (ICR).Sixteen female patients with mandibular retrognathism and ICR were included in this prospective study. For patient factors, serum 17 β-estradiol (E2), bone mineral density, and the preoperative ... Read more >>

Oral Surg Oral Med Oral Pathol Oral Radiol (Oral surgery, oral medicine, oral pathology and oral radiology)
[2015, 120(2):112-118]

Cited: 3 times

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Estrogen Modulates Bone Morphogenetic Protein-Induced Sclerostin Expression Through the Wnt Signaling Pathway.

Ri Youn Kim, Hoon Joo Yang, Yun Mi Song, In Sook Kim, Soon Jung Hwang,

Clinical data show that estrogen levels are inversely associated with the production of sclerostin, a Wnt antagonist that recently attracted great attention over the use of its antibody in the anabolic treatment of osteoporotic conditions. However, the molecular link between sclerostin expression and estrogen signaling is not yet known. We ... Read more >>

Tissue Eng Part A (Tissue engineering. Part A)
[2015, 21(13-14):2076-2088]

Cited: 19 times

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An integrated orthognathic surgery system for virtual planning and image-guided transfer without intermediate splint.

Dae-Seung Kim, Sang-Yoon Woo, Hoon Joo Yang, Kyung-Hoe Huh, Sam-Sun Lee, Min-Suk Heo, Soon-Chul Choi, Soon Jung Hwang, Won-Jin Yi,

Accurate surgical planning and transfer of the planning in orthognathic surgery are very important in achieving a successful surgical outcome with appropriate improvement. Conventionally, the paper surgery is performed based on a 2D cephalometric radiograph, and the results are expressed using cast models and an articulator. We developed an integrated ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2014, 42(8):2010-2017]

Cited: 0 times

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Osseous alterations in the condylar head after unilateral surgical directional change in rabbit mandibular condyles: preliminary study.

Hoon Joo Yang, Soon Jung Hwang,

The purpose of this study was to investigate bony changes in the mandibular condyle when the surface not normally subjected to masticatory forces was subjected to functional loading using a unilateral surgical experiment. Fifteen male New Zealand white rabbits, divided into two groups, were used. Oblique vertical body osteotomies of ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2014, 42(8):1632-1638]

Cited: 2 times

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Comparison of whole blood collection and double-unit erythrocytapheresis in preoperative autologous blood donation.

Miyoung Kim, Hyung Suk Kim, Yang Hyun Kim, Ji Seon Choi, Hoon Joo Yang, Soon Jung Hwang, Myung Jin Kim, Jong Ho Lee, Jin Young Choi, Kyou-Sup Han,

INTRODUCTION: We compared preoperative autologous blood donation (PABD) using serial manual whole blood (WB) and PABD using a single session, double-unit erythrocytapheresis in terms of the hemodynamic recovery and clinical outcomes. MATERIALS AND METHODS: This study included 56 donors in the WB PABD group and 117 donors in the double-unit ... Read more >>

Transfus Apher Sci (Transfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis)
[2013, 49(3):542-547]

Cited: 1 time

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Three-dimensional natural head position reproduction using a single facial photograph based on the POSIT method.

Dae-Seung Kim, Hoon Joo Yang, Kyung-Hoe Huh, Sam-Sun Lee, Min-Suk Heo, Soon-Chul Choi, Soon Jung Hwang, Won-Jin Yi,

We developed a new method to record and reproduce the three-dimensional natural head position (NHP) from a single photograph of a patient's face using a pose from orthography and scaling with iterations (POSIT) algorithm. We attached 4-mm spherical ceramic markers to the patient's face as feature points. A frontal photograph ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2014, 42(7):1315-1321]

Cited: 2 times

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Relapse after SSRO for mandibular setback movement in relation to the amount of mandibular setback and intraoperative clockwise rotation of the proximal segment.

Jeong Joon Han, Hoon Joo Yang, Shin-Jae Lee, Soon Jung Hwang,

The aim of this study was to evaluate the effect of the amount of setback movement and intraoperative clockwise rotation of the proximal segments on postoperative stability after orthognathic surgery to correct mandibular prognathism. Thirty-six patients with mandibular prognathism who underwent orthognathic surgery with bilateral sagittal split ramus osteotomy were ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2014, 42(6):811-815]

Cited: 8 times

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Relapse of skeletal class III with anterior open bite after bimaxillary orthognathic surgery depending on maxillary posterior impaction and mandibular counterclockwise rotation.

Hok Sim Kor, Hoon Joo Yang, Soon Jung Hwang,

The goal of this study is to evaluate relapse after orthognathic surgery of skeletal class III with anterior open bite depending on the posterior impaction and mandibular counterclockwise rotation. Patients (n = 29) were divided into two groups according to the change of mandibular occlusal plane angle (MnOP): Group A had a ... Read more >>

J Craniomaxillofac Surg (Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery)
[2014, 42(5):e230-8]

Cited: 5 times

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