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Facial asymmetry

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https://www.readbyqxmd.com/read/28530843/cone-beam-computed-tomography-evaluation-on-the-condylar-displacement-following-sagittal-split-ramus-osteotomy-in-asymmetric-setback-patients-comparison-between-conventional-approach-and-surgery-first-approach
#1
Min-Hee Oh, Hyeon-Shik Hwang, Kyung-Min Lee, Jin-Hyoung Cho
OBJECTIVE: To compare the condylar displacement following sagittal split ramus osteotomy (SSRO) in asymmetric setback patients between the conventional approach and surgery-first approach and to determine whether the condylar displacement is affected by asymmetric setback in SSRO patients. MATERIALS AND METHODS: This was a retrospective study. The subjects consisted of patients with facial asymmetry who underwent SSRO and had cone-beam computed tomography taken before and 1 month after surgery...
May 22, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28528114/postoperative-outcomes-of-two-and-three-dimensional-planning-in-orthognathic-surgery-a-comparative-study
#2
Ting-Yu Wu, Hsiu-Hsia Lin, Lun-Jou Lo, Cheng-Ting Ho
OBJECTIVE: Compared with conventional two-dimensional (2D) planning, three-dimensional (3D) planning in orthognathic surgery yields more accurate anatomical information and enables the precise positioning of maxillary and mandibular segments, particularly for patients with facial asymmetry. Accordingly, surgical outcomes achieved using 3D planning should be superior. This study determined the differences between the 2D and 3D planning techniques by comparing their surgical outcomes. MATERIALS AND METHODS: In this retrospective study, patients who underwent surgery following the traditional 2D planning technique were classified into the 2D planning group...
April 23, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28526831/selection-of-a-horizontal-reference-plane-in-3d-evaluation-identifying-facial-asymmetry-and-occlusal-cant-in-orthognathic-surgery-planning
#3
Daniel Lonic, Ali Sundoro, Hsiu-Hsia Lin, Pei-Ju Lin, Lun-Jou Lo
Facial asymmetry and dental occlusal cant have been detected in two-dimensional cephalometry using different horizontal reference lines, but equivalent 3-dimensional (3D) reference planes have not been thoroughly investigated. In this study, 3D cone-beam computed tomography scans of 83 consecutive patients were evaluated using a standardized 3D frame and three horizontal reference planes, Supraorbitale (Sor), Frontozygomatic (Z), and Frankfurt horizontal (FH) for cant detection. Canting was defined as a vertical difference between left and right sides of 2 mm or more, and in at least two investigated planes...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28523246/targeted-presurgical-decompensation-in-patients-with-yaw-dependent-facial-asymmetry
#4
Kyung-A Kim, Ji-Won Lee, Jeong-Ho Park, Byoung-Ho Kim, Hyo-Won Ahn, Su-Jung Kim
Facial asymmetry can be classified into the rolling-dominant type (R-type), translation-dominant type (T-type), yawing-dominant type (Y-type), and atypical type (A-type) based on the distorted skeletal components that cause canting, translation, and yawing of the maxilla and/or mandible. Each facial asymmetry type represents dentoalveolar compensations in three dimensions that correspond to the main skeletal discrepancies. To obtain sufficient surgical correction, it is necessary to analyze the main skeletal discrepancies contributing to the facial asymmetry and then the skeletal-dental relationships in the maxilla and mandible separately...
May 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28511522/iris-positioning-using-a-grid-attached-to-a-spring-bow-for-a-custom-ocular-prosthesis
#5
Ankita Chamaria, Meena Ajay Aras, Vidya Chitre, Godwin Clovis Da Costa
Eyes are among the first features of the face to be noticed. Loss of an eye due to congenital, traumatic or pathologic aetiologies causes disfigurement and loss of sensory feedback. It leaves a psychological impact on the patient, thus prosthesis should be provided at the earliest to raise the spirits of the afflicted. Iris positioning is one of the important steps in fabricating customized ocular prosthesis. In facial asymmetry cases, comparison of both irises together can be a major disadvantage. This case report illustrates the use of a unique customized frame spring bow assembly to position the iris disk using the established parallelism between inter pupillary line to the horizontal plane...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28509671/complications-in-facial-mohs-defect-reconstruction
#6
Angelique M Berens, Sarah R Akkina, Sapna A Patel
PURPOSE OF REVIEW: To review the recent literature in regards to complications after reconstruction of Mohs defects, outline common pitfalls and to discuss the literature on avoiding complications as outlined per aesthetic subunit. RECENT FINDINGS: Complications in facial Mohs reconstruction commonly consist of infection, wound necrosis and dehiscence, hematoma and suboptimal scarring. However, site-specific complications such as hairline or eyebrow distortion, eyelid retraction or ectropion, nasal contour abnormality, alar retraction, nasal valve compromise, significant facial asymmetry or even oral incompetence must also be considered...
May 13, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28504987/secondary-reconstruction-of-maxillofacial-trauma
#7
Jaime Castro-Núñez, Joseph E Van Sickels
PURPOSE OF REVIEW: Craniomaxillofacial trauma is one of the most complex clinical conditions in contemporary maxillofacial surgery. Vital structures and possible functional and esthetic sequelae are important considerations following this type of trauma and intervention. Despite the best efforts of the primary surgery, there are a group of patients that will have poor outcomes requiring secondary reconstruction to restore form and function. The purpose of this study is to review current concepts on secondary reconstruction to the maxillofacial complex...
May 12, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28500329/no-evidence-of-inbreeding-depression-in-a-tasmanian-devil-insurance-population-despite-significant-variation-in-inbreeding
#8
Rebecca Gooley, Carolyn J Hogg, Katherine Belov, Catherine E Grueber
Inbreeding depression occurs when inbred individuals experience reduced fitness as a result of reduced genome-wide heterozygosity. The Tasmanian devil faces extinction due to a contagious cancer, devil facial tumour disease (DFTD). An insurance metapopulation was established in 2006 to ensure the survival of the species and to be used as a source population for re-wilding and genetic rescue. The emergence of DFTD and the rapid decline of wild devil populations have rendered the species at risk of inbreeding depression...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28479706/disorganized-histomorphology-dentinogenic-ghost-cell-tumor
#9
Cheshta Walia, Bina Kashyap, Sudip Roy
Calcifying odontogenic cyst (COC) is a term used broadly to define lesions which were either cystic/solid in nature. However, a new term defining dentinogenic ghost cell tumor (DGCT), as its neoplastic counterpart, histopathologically showed the presence of dentinoid-like areas, ghost cells and ameloblastomatous-like odontogenic epithelium. This possesses a great challenge to an oral pathologist in diagnosing and differentiating it from solid multicystic ameloblastoma or COCs so as to ensure the biological behavior and pathogenesis behind its multifaceted nature...
January 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28468162/postoperative-three-dimensional-evaluation-of-mandibular-contouring-surgery-using-computer-assisted-simulation-planning-and-a-three-dimensional-printed-surgical-guide
#10
Hyun Seok, Seong-Gon Kim, Young-Wook Park, Yong-Chan Lee
Mandibular contouring surgery was performed using computer-assisted simulation planning (CASP) and 3-dimensional printed surgical guide. The outcome of the surgery was evaluated by overlapping preoperative image. The patient underwent mandibular contouring surgery according to CASP for his residual facial asymmetry of the mandibular angle and mental area. The overall facial aesthetic of the patient was improved. In the overlapping image, the left mandibular border area was slightly overcorrected. However, the other portion was operated as planned...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28468161/novel-treatment-planning-of-hemimandibular-hyperplasia-by-the-use-of-three-dimensional-computer-aided-design-and-computer-aided-manufacturing-technologies
#11
Muhanad M Hatamleh, Elizabeth Yeung, Jonas Osher, Chrisopher Huppa
RATIONALE AND AIM: Hemimandibular hyperplasia is characterized by an obvious overgrowth in the size of the mandible on one side, which can extend up to the midline causing facial asymmetry. Surgical resection of the overgrowth depends heavily on the skill and experience of the surgeon. This report describes a novel methodology of applying three-dimensional computer-aided-design and computer-aided-manufacturing principles in improving the outcome of surgery in 2 mandibular hyperplasia patients...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28468137/long-term-outcome-of-microautologous-fat-transplantation-to-correct-temporal-depression
#12
Su-Shin Lee, Yu-Hao Huang, Tsung-Yin Lin, Chih-Kang Chou, Hidenobu Takahashi, Chung-Sheng Lai, Sin-Daw Lin, Tsai-Ming Lin
OBJECTIVE: Sunken temporal fossa appears oftentimes in Asians and resembles bad fortune that people wish to change. Numerous techniques and materials have been applied clinically for augmenting the sunken temporal fossa with variable results. The microautologous fat transplantation (MAFT) technique proposed by Lin et al in 2006 has demonstrated favorable results in facial rejuvenation. In the present study, the authors applied the MAFT technique with an innovative instrument in sunken temporal fossa and reported its results...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28462198/intramuscular-hemangiomas-on-the-masseter-muscle-and-orbicularis-oris-muscle-a-report-of-two-cases
#13
Il-Kyu Kim, Ji-Hoon Seo, Hyun-Young Cho, Dong-Hwan Lee, Jun-Min Jang, Joon Mee Kim, In Suh Park
Intramuscular hemangioma (IMH) is a rare vascular disease involving skeletal muscle, comprising only 0.8% of hemangiomas. About 10% to 15% of IMHs occur in the head and neck region, mostly involving the masseter muscle. IMH occurs mostly in childhood, but is often not found until unexpected enlargement, pain, or cosmetic asymmetry occurs in adulthood. Several non-surgical treatments including cryotherapy, sclerosant injection, and arterial ligature have been described, but complete surgical resection is the curative intervention...
April 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28437271/surgical-management-of-traumatic-peripheral-osteoma-of-the-mandible
#14
André Bachega Gomes Geron, Vinícius Almeida Carvalho, Jessica Luana Dos Santos, Luciana Yamamoto Almeida, Jorge Esquiche León, Alexandre Elias Trivellato, Cássio Edvard Sverzut
Osteomas are benign osteogenic lesions that result from the proliferation of mature bone. Three variants are known: central, peripheral, and extraskeletal. The peripheral variant is the most common and it most frequently affects the paranasal sinuses, rarely occurring in the jaws. This article describes the case of a 33-year-old white male patient who was referred complaining of facial asymmetry. Clinical examination revealed an increase in volume at the base of the right side of the mandible, hard bony consistency and well delimited, painless to the touch, without signs of infection or intraoral alterations...
April 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28437270/surgical-resolution-of-bilateral-hypertrophy-of-masseter-muscle-through-intraoral-approach
#15
Guilherme Dos Santos Trento, Leonardo Silva Benato, Nelson Luis Barbosa Rebellato, Leandro Eduardo Klüppel
Masseter muscle hypertrophy is an untypical anomaly with no definite cause and its diagnosis is easily completed through physical examination and imaging examinations. In some cases, patient may report signs and symptoms of well-localizated pain. However, it is generally asymptomatic and patient's chief complaint is about esthetic because of facial asymmetry. In this case, surgery is carefully indicated. The aim of this article is to report a case of a male patient with no painful and functional complaints but an important unease over his facial asymmetry...
April 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28434895/the-use-of-endoprotheses-for-patients-with-complex-asymmetry-a-clinical-case-study
#16
Mónica Umana, Thierry Piral
Facial asymmetry requires multidisciplinary management. In some cases, predictable problems due to congenital abnormalities can be corrected by early orthodontic treatment. Orthodontics is nevertheless often part of an orthosurgical treatment plan. The solutions are conventional and familiar: maxillomandibular rotation osteotomy and genioplasty. Many cases can be treated in this way, but there is often persistent residual asymmetry due to loss of volume that is not corrected by these techniques. The use of maxillo-acial endoprostheses designed on the basis of three-dimensional craniofacial analyses can rebalance volumes simply and with due regard to the patient's anatomy...
April 20, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28423221/facial-asymmetry-in-head-and-neck-rhabdomyosarcoma-survivors
#17
Reineke A Schoot, Marinka L F Hol, Johannes H M Merks, Michael Suttie, Olga Slater, Marinde van Lennep, Saskia M J Hopman, David Dunaway, Jonathan Syme-Grant, Ludi E Smeele, Koos H Zwinderman, Huib N Caron, Peter Hammond
INTRODUCTION: Radiotherapy is essential for achieving and maintaining local control in head and neck rhabdomyosarcoma (HNRMS) patients. However, radiotherapy may cause outgrowth disturbances of facial bone and soft tissue, resulting in facial asymmetry. The aim of this study was to develop a method to visualize and measure facial asymmetry in HNRMS survivors using three-dimensional (3D) imaging techniques. METHODS: Facial deformity was evaluated in a multidisciplinary clinical assessment of 75 HNRMS survivors, treated with external beam radiotherapy (EBRT, n = 26) or Ablative surgery, MOulage brachytherapy, and REconstruction (AMORE, n = 49)...
April 19, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28417258/in-vivo-facial-soft-tissue-depths-of-a-modern-adult-population-from-germany
#18
Nicolle Thiemann, Volker Keil, Uwe Roy
Forensic facial reconstruction may be the final option available to draw public attention in cases where the identity of an individual cannot be established by standard identification methods. Two fundamental components of all forensic facial reconstruction techniques are cranial morphology and soft tissue depth databases. The purpose of this study was to extend such databases by providing a complete set of accurate facial soft tissue thickness measurements, acquired from a contemporary adult population from Germany...
April 17, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28413598/solitary-peripheral-ivory-osteoma-of-the-mandible-presenting-with-difficulty-in-deglutition-a-case-report
#19
Kumar Nilesh, Aaditee V Vande, Suresh K Veerabhadrappa
Osteomas are benign bone tumors which arise from the cortex or medulla of craniofacial and jaw bones. They are usually asymptomatic or present as slow-growing painless masses. Larger lesions may present with aesthetic (facial asymmetry) and functional disturbances (jaw deviation, difficulty in breathing, pain, and sensory deficits). This paper highlights a case of solitary peripheral osteoma composed of a compact bony mass arising from the lower border of the mandible in an adult female patient. The lesion presented with discomfort during deglutition, which was attributed to impingement of muscles of the oral cavity floor, including the anterior belly of digastric muscle...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28409207/the-precise-repositioning-instrument-for-genioplasty-and-a-three-dimensional-printing-technique-for-treatment-of-complex-facial-asymmetry
#20
Lin Wang, Dan Tian, Xiumei Sun, Yanju Xiao, Li Chen, Guomin Wu
BACKGROUND: Facial asymmetry is very common in maxillofacial deformities. It is difficult to achieve accurate reconstruction. With the help of 3D printing models and surgical templates, the osteotomy line and the amount of bone grinding can be accurate. Also, by means of the precise repositioning instrument, the repositioning of genioplasty can be accurate and quick. In this study, we present a three-dimensional printing technique and the precise repositioning instrument to guide the osteotomy and repositioning, and illustrate their feasibility and validity...
April 13, 2017: Aesthetic Plastic Surgery
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