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Maxillofacial Plastic and Reconstructive Surgery

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https://www.readbyqxmd.com/read/27882312/supernumerary-nostril-a-case-report
#1
Bo-Eun Choi, Seung-O Ko, Hyo-Keun Shin
BACKGROUND: Supernumerary nostril is a congenital anomaly that contains additional nostril with or without accessory cartilage. These rare congenital nasal deformities result from embryological defects. Since 1906, Lindsay (Trans Pathol Soc Lond. 57:329-330, 1906) has published the first research of bilateral supernumerary nostrils, and only 34 cases have been reported so far in the English literature. CASE PRESENTATION: A 1-year-old female baby was brought to our department group for the treatment of an accessory opening above the left nostril which had been presented since her birth...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27882311/retrospective-clinical-study-of-an-implant-with-a-sandblasted-large-grit-acid-etched-surface-and-internal-connection-analysis-of-short-term-success-rate-and-marginal-bone-loss
#2
Jae-Wang Lee, Jun Hyeong An, Sang-Hoon Park, Jong-Hyon Chong, Gwang-Seok Kim, JeongJoon Han, Seunggon Jung, Min-Suk Kook, Hee-Kyun Oh, Sun-Youl Ryu, Hong-Ju Park
BACKGROUND: The purpose of this retrospective study was to evaluate the clinical utility of an implant with a sandblasted, large-grit, acid-etched (SLA) surface and internal connection. METHODS: Six patients who received dental implants in the Department of Oral and Maxillofacial Surgery, Chonnam National University Dental Hospital, were analyzed by factors influencing the success rate and marginal bone loss. Factors included patient's age, sex, implant installation site, whether bone graft was done, type of bone graft materials, approaching method if sinus lift was done, and the size of the fixture...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27882310/minimal-invasive-horizontal-ridge-augmentation-using-subperiosteal-tunneling-technique
#3
Hyun-Suk Kim, Young-Kyun Kim, Pil-Young Yun
BACKGROUND: The goal of this study was to retrospectively evaluate the prognosis of minimal invasive horizontal ridge augmentation (MIHRA) technique using small incision and subperiosteal tunneling technique. METHODS: This study targeted 25 partially edentulous patients (10 males and 15 females, mean age 48.8 ± 19.7 years) who needed bone graft for installation of the implants due to alveolar bone deficiency. The patients took the radiographic exam, panoramic and periapical view at first visit, and had implant fixture installation surgery...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27830140/failed-septal-extension-graft-in-a-patient-with-a-history-of-radiotherapy
#4
Il Gyu Kang, Seon Tae Kim, Seok Ho Lee, Min Kwan Baek
BACKGROUND: This report describes the authors' experience of "melting" septal cartilage after placement of a septal extension graft in a nasopharyngeal cancer patient that had been previously undergone radiation therapy, and provides a review of the literature. METHODS: Electronic medical records were used to obtain details of the patient's clinical history. RESULTS: A 32-year-old woman, who had previously undergone radiotherapy for nasopharyngeal cancer, visited our department to for rhinoplasty...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27830139/advantages-of-intraoral-and-transconjunctival-approaches-for-posterior-displacement-of-a-fractured-zygomaticomaxillary-complex
#5
Ji Yong Yoo, Jang Won Lee, Seung Jae Paek, Won Jong Park, Eun Joo Choi, Kyung-Hwan Kwon, Moon-Gi Choi
BACKGROUND: Fracture of the zygomaticomaxillary complex (ZMC) is one of the most common facial injuries. A previous study has performed 3D analyses of the parallel and rotational displacements that occur in a fractured ZMC. However, few studies have investigated adequate fixation methods according to these displacements. Here, we assessed whether specific approaches and fixation methods for displacement of ZMC fractures produce esthetic results. METHODS: Hospital records and pre- and post-surgical computed tomographic scans of patients treated for ZMC fractures at the Department of Oral and Maxillofacial Surgery, College of Dentistry, Wonkwang University, between January 2010 and December 2015, were selected...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27774442/the-sequential-management-of-recurrent-temporomandibular-joint-ankylosis-in-a-growing-child-a-case-report
#6
Jung-Won Cho, Jung-Hyun Park, Jin-Woo Kim, Sun-Jong Kim
BACKGROUND: Temporomandibular joint (TMJ) ankylosis in children often leads to facial deformity, functional deficit, and negative influence of the psychosocial development, which worsens with growth. The treatment of TMJ ankylosis in the pediatric patient is much more challenging than in adults because of a high incidence of recurrence and unfavorable growth of the mandible. CASE REPORT: This is a case report describing sequential management of the left TMJ ankylosis resulted from trauma in early childhood...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27774441/changes-of-lip-morphology-following-mandibular-setback-surgery-using-3d-cone-beam-computed-tomography-images
#7
Seung Jae Paek, Ji Yong Yoo, Jang Won Lee, Won-Jong Park, Young Deok Chee, Moon Gi Choi, Eun Joo Choi, Kyung-Hwan Kwon
BACKGROUND: The aims of this study are to evaluate the lip morphology and change of lip commissure after mandibular setback surgery (MSS) for class III patients and analyze association between the amount of mandibular setback and change of lip morphology. METHODS: The samples consisted of 14 class III patients treated with MSS using bilateral sagittal split ramus osteotomy. Lateral cephalogram and cone-beam CT were taken before and about 6 months after MSS. Changes in landmarks and variables were measured with 3D software program Ondemand™...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27774440/frontal-augmentation-as-an-adjunct-to-orthognathic-or-facial-contouring-surgery
#8
Young-Wook Park
BACKGROUND: The dimensions and shape of the forehead determine the esthetics of the upper third of the face. Korean young people consider a broad and smooth, rounded forehead more attractive. As a result, frontal augmentation becomes more popular in patients with dentofacial deformities. Various surgical procedures and materials have been used in frontal augmentation surgery, with associated advantages and disadvantages. Silicone is a good candidate for frontal augmentation. The author presents two cases of esthetic frontal augmentation with a prefabricated silicone implant in female patients with dentofacial deformities...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27730098/clinical-evaluation-of-sinus-bone-graft-in-patients-with-mucous-retention-cyst
#9
Seong-Beom Kim, Pil-Young Yun, Young-Kyun Kim
BACKGROUND: Mucous retention cyst refers to a cyst made by expansion due to the blockage of the salivary gland near the maxillary sinus, and it is surrounded by epithelial cells. Most of them are small; therefore, they cannot be found well and are frequently with antral polyp. The aim of this study was to evaluate the clinical prognosis of sinus bone graft in patients with mucous retention cyst. METHODS: This study was performed retrospectively on 23 patients who had sinus bone graft...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27642584/botulinum-toxin-related-research-in-maxillofacial-plastic-and-reconstructive-surgery
#10
Tae-Geon Kwon
No abstract text is available yet for this article.
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27635391/s100-and-p65-expression-are-increased-in-the-masseter-muscle-after-botulinum-toxin-a-injection
#11
Young-Wook Park, Seong-Gon Kim, You-Young Jo
BACKGROUND: The purpose of this study was to compare the expression levels of p65 and S100 in the rat masseter muscle after the injection of different concentrations of botulinum toxin-A (BTX-A). METHODS: We injected either 5 or 10 U of BTX-A into both masseter muscle of rats. As a control group, the same volume of saline was injected. After 14 days, the animals were sacrificed. Subsequently, a biopsy and immunohistochemical staining of the samples were performed using a p65 or S100 antibody...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27617258/analysis-of-morbidity-mortality-and-risk-factors-of-tracheostomy-related-complications-in-patients-with-oral-and-maxillofacial-cancer
#12
Seung Tae Lee, Min Gyun Kim, Jae Ho Jeon, Joo Hee Jeong, Seung Ki Min, Joo Yong Park, Sung Weon Choi
BACKGROUND: This study aimed to analyze and describe the morbidity and mortality associated with tracheostomy in patients with oral cancer and to identify the risk factors associated with tracheostomy complications. METHODS: We performed a retrospective chart review of patients who underwent tracheostomy during a major oral cancer resection between March 2001 and January 2016 at the National Cancer Center, Korea. Overall, we included 51 patients who underwent tracheostomy after oral cancer surgery...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27547749/narrow-diameter-implants-with-conical-connection-for-restoring-the-posterior-edentulous-region
#13
In-Hee Woo, Ju-Won Kim, So-Young Kang, Young-Hee Kim, Byoung-Eun Yang
BACKGROUND: The objective of this retrospective study was to show results from platform-switched narrow-diameter implants in the posterior edentulous region, which we followed up for more than 1 year after functional loading. METHODS: Ninety-eight narrow implants were inserted into 66 patients. After healing, fixed implant-supported prostheses were delivered to the patients, and Periotest and radiographic examinations were performed. After the first year of loading, the implant outcome was again evaluated clinically and radiographically using the Periotest analysis...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27547748/retrospective-clinical-study-of-ultrawide-implants-more-than-6%C3%A2-mm-in-diameter
#14
Jeong-Kui Ku, Yang-Jin Yi, Pil-Young Yun, Young-Kyun Kim
BACKGROUND: The prognosis of wide implants tends to be controversial. While wider implants were initially expected to result in a larger osseointegration area and have higher levels of primary stability, they were reported to have a relatively high rate of failure. The clinical outcome of ultrawide implants of more than 6 mm in diameter was evaluated through a retrospective study. METHODS: The investigation was conducted on patients who had received ultrawide implant (≥6 mm diameter) placements in Seoul National University Bundang Hospital from January 2008 to December 2013...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27547747/the-effect-of-4-hexylresorcinol-on-xenograft-degradation-in-a-rat-calvarial-defect-model
#15
Yei-Jin Kang, Ji-Eun Noh, Myung-Jin Lee, Weon-Sik Chae, Si Young Lee, Seong-Gon Kim
BACKGROUND: The objective of this study was to evaluate xenograft degradation velocity when treated with 4-hexylresorcinol (4HR). METHODS: The scapula of a cow was purchased from a local grocery, and discs (diameter 8 mm, thickness 1 mm) were prepared by trephine bur. Discs treated with 4HR were used as the experimental group. Untreated discs were used as the control. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), antibacterial test, endotoxin test, and scanning electron microscopy (SEM) were performed on the discs...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27512690/posterior-maxillary-segmental-osteotomy-for-management-of-insufficient-intermaxillary-vertical-space-and-intermolar-width-discrepancy-a-case-report
#16
SeungWoo Baeg, SungWoon On, JeongKeun Lee, SeungIl Song
BACKGROUNDS: Insufficient intermaxillary space is caused by non-restoration following tooth extraction in the past, and this involves eruption of the opposing teeth and changes of the arch structure. Such cases are difficult just by a simple prosthetic approach, and diversified treatment plans should be established. Among these, posterior maxillary segmental osteotomy (PMSO) is an efficient treatment option than extraction of opposing teeth as it surgically repositions multiple erupted teeth and alveolar bone...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27446821/bone-regenerative-effect-of-recombinant-human-bone-morphogenetic-protein-2-after-cyst-enucleation
#17
Doo Yeon Hwang, Sung Woon On, Seung Ii Song
BACKGROUND: The aim of this study is to quantitatively evaluate the effect of rhBMP-2 for repair of bone defects after cyst enucleation using the osteogenesis index (OI). METHODS: Under general anesthesia, 10 patients (12 lesions) underwent oral or maxillofacial surgery for cyst enucleation. Postoperatively, 12 lesions were divided into two groups: group A (six lesions) was treated with absorbable collagen sponge (ACS) in combination with rhBMP-2, and group B (six lesions) was treated with ACS alone...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27441186/cranial-bone-regeneration-according-to-different-particle-sizes-and-densities-of-demineralized-dentin-matrix-in-the-rabbit-model
#18
Jin-Woo Nam, Moon-Young Kim, Se-Jin Han
BACKGROUND: The objective of this study was to place bone graft materials in cranial defects in a rabbit model and compare their bone regenerating ability according to the size and density of demineralized dentin matrix (DDM). METHODS: We selected nine healthy male rabbits that were raised under the same conditions and that weighed about 3 kg. Two circular defects 8 mm in diameter were created in each side of the cranium. The defects were grafted with DDM using four different particle sizes and densities: 0...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27441185/effect-of-hydroxyapatite-on-critical-sized-defect
#19
Ryoe-Woon Kim, Ji-Hyoung Kim, Seong-Yong Moon
BACKGROUND: Xenologous or synthetic graft materials are commonly used as an alternative for autografts for guided bone regeneration. The purpose of this study was to evaluate effectiveness of carbonate apatite on the critical-size bone defect of rat's calvarium. METHODS: Thirty-six critical-size defects were created on 18 adult male Sprague-Dawley rat calvaria under general anesthesia. Calvarial bones were grinded with 8 mm in daimeter bilaterally and then filled with (1) no grafts (control, n = 10 defects), (2) bovine bone mineral (Bio-Oss®, Geistlich Pharma Ag...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27441184/recovery-of-inferior-alveolar-nerve-injury-after-bilateral-sagittal-split-ramus-osteotomy-bssro-a-retrospective-study
#20
Chi-Heun Lee, Baek-Soo Lee, Byung-Joon Choi, Jung-Woo Lee, Joo-Young Ohe, Hee-Young Yoo, Yong-Dae Kwon
BACKGROUND: Bilateral sagittal split ramus osteotomy (BSSRO) is the most widely used mandibular surgical technique in orthognathic surgery and is easy to relocate the distal segments, accelerating bone repair by the large surface of bone contact. However, it can cause neurosensory dysfunction (NSD) or sensory loss by injury of the inferior alveolar nerve. The purpose of the present study was to evaluate NSD after BSSRO and modifiers at NSD recovery. METHODS: In this study, NSD characteristics after BSSRO from 2009 to 2014 at the Kyung Hee University Dental Hospital were evaluated...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
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