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Facial asymmetry

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https://www.readbyqxmd.com/read/28078105/asymmetric-facial-bone-fragmentation-mirrors-asymmetric-distribution-of-cranial-neuromasts-in-blind-mexican-cavefish
#1
Joshua B Gross, Andrew Gangidine, Amanda K Powers
Craniofacial asymmetry is a convergent trait widely distributed across animals that colonize the extreme cave environment. Although craniofacial asymmetry can be discerned easily, other complex phenotypes (such as sensory organ position and numerical variation) are challenging to score and compare. Certain bones of the craniofacial complex demonstrate substantial asymmetry, and co-localize to regions harboring dramatically expanded numbers of mechanosensory neuromasts. To determine if a relationship exists between this expansion and bone fragmentation in cavefish, we developed a quantitative measure of positional symmetry across the left-right axis...
November 2016: Symmetry
https://www.readbyqxmd.com/read/28071714/three-dimensional-surgical-simulation-improves-the-planning-for-correction-of-facial-prognathism-and-asymmetry-a-qualitative-and-quantitative-study
#2
Cheng-Ting Ho, Hsiu-Hsia Lin, Eric J W Liou, Lun-Jou Lo
Traditional planning method for orthognathic surgery has limitations of cephalometric analysis, especially for patients with asymmetry. The aim of this study was to assess surgical plan modification after 3-demensional (3D) simulation. The procedures were to perform traditional surgical planning, construction of 3D model for the initial surgical plan (P1), 3D model of altered surgical plan after simulation (P2), comparison between P1 and P2 models, surgical execution, and postoperative validation using superimposition and root-mean-square difference (RMSD) between postoperative 3D image and P2 simulation model...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28060876/socioeconomic-status-is-not-related-with-facial-fluctuating-asymmetry-evidence-from-latin-american-populations
#3
Mirsha Quinto-Sánchez, Celia Cintas, Caio Cesar Silva de Cerqueira, Virginia Ramallo, Victor Acuña-Alonzo, Kaustubh Adhikari, Lucía Castillo, Jorge Gomez-Valdés, Paola Everardo, Francisco De Avila, Tábita Hünemeier, Claudia Jaramillo, Williams Arias, Macarena Fuentes, Carla Gallo, Giovani Poletti, Lavinia Schuler-Faccini, Maria Cátira Bortolini, Samuel Canizales-Quinteros, Francisco Rothhammer, Gabriel Bedoya, Javier Rosique, Andrés Ruiz-Linares, Rolando González-José
The expression of facial asymmetries has been recurrently related with poverty and/or disadvantaged socioeconomic status. Departing from the developmental instability theory, previous approaches attempted to test the statistical relationship between the stress experienced by individuals grown in poor conditions and an increase in facial and corporal asymmetry. Here we aim to further evaluate such hypothesis on a large sample of admixed Latin Americans individuals by exploring if low socioeconomic status individuals tend to exhibit greater facial fluctuating asymmetry values...
2017: PloS One
https://www.readbyqxmd.com/read/28057454/infiltrating-lipomatosis-of-the-face-case-series-and-literature-review
#4
Marianna Sampaio Serpa, Crispian Scully, Ana Paula Molina Vivas, Oslei Paes de Almeida, Felipe D'Almeida Costa, Fábio Abreu Alves
Infiltrating lipomatosis of the face is a rare disorder in which mature adipocytes infiltrate tissues, leading to facial asymmetry. We present three cases, emphasizing their clinical and imaging features. In two of our cases, typical clinical features of infiltrating lipomatosis of the face were observed, including enlargement of cheek and bones, as well as early tooth eruption. The other case stood out because of its uncommon clinical presentation: presenting with hemimacroglossia, ipsilateral submandibular gland enlargement, and papillomatosis on the dorsum of the tongue...
October 15, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28053860/dyke-davidoff-masson-syndrome-in-a-nigerian
#5
Philip B Adebayo, Amnat Bakare, Modupe M Bello, Opeyemi D Olaewe, Kolawole W Wahab
Dyke-Davidoff-Masson syndrome (DDMS) is a rare, but important cause of drug-resistant seizures. Dyke-Davidoff-Masson syndrome is a constellation of clinical features that consists of hemiparesis, seizure, facial asymmetry, and intellectual disability with distinct neuroimaging features. A 27-year-old lady presented to us with drug-resistant epilepsy, hemiparesis, and intellectual disability that necessitated her withdrawal from school. Her brain magnetic resonance imaging (MRI) showed cerebral hemiatrophy, calvarial thickening, and hyperpneumatization of the frontal sinuses consistent with DDMS...
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/28024774/three-dimensional-virtual-surgery-simulation-assisted-asymmetric-bilateral-mandibular-distraction-osteogenesis-for-a-patient-with-bilateral-condylar-fractures
#6
Myung-Jin Kim, Jihee Seo, Do-Keun Kim, Seung-Hak Baek
INTRODUCTION: Our objective was to report a patient treated with 3-dimensional virtual-surgery simulation-assisted asymmetric bilateral mandibular distraction osteogenesis. METHODS: A boy (age, 9.5 years) had mandibular hypoplasia and facial asymmetry, induced by bilateral condylar fractures at 4 years of age. The asymmetric bilateral mandibular distraction osteogenesis was planned to correct facial asymmetry and mandibular hypoplasia. The 3-dimensional virtual-surgery simulation results were 11 mm of horizontal distraction on the right side and 4...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28024769/transverse-dental-compensation-in-relation-to%C3%A2-sagittal-and-transverse-skeletal-discrepancies-in-skeletal-class-iii-patients
#7
Jaechan Ahn, Sung-Jin Kim, Ji-Yeon Lee, Chooryung J Chung, Kyung-Ho Kim
INTRODUCTION: The purposes of this study were to compare the buccolingual inclinations of the posterior teeth in skeletal Class III patients with and without facial asymmetry with those of skeletal Class I patients and to investigate their relationships with sagittal and transverse skeletal discrepancies. METHODS: Sixty-three skeletal Class III adult patients were divided into 2 groups according to the degree of menton deviation: a symmetry group with deviation less than 2 mm (n = 30), and an asymmetry group with deviation greater than 4 mm (n = 33)...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28011182/dynamic-facial-asymmetry-in-patients-with-repaired-cleft-lip-using-4d-imaging-video-stereophotogrammetry
#8
Rami R Hallac, Jennifer Feng, Alex A Kane, James R Seaward
BACKGROUND: Unilateral cleft lip is a profoundly asymmetrical condition affecting all hard and soft tissue layers from the nose to the upper lip. Although the asymmetry is minimized through cleft lip repair, a degree of asymmetry inevitably persists. Studies investigating asymmetry in patients with cleft lip have used facial measurements, and static 2D and 3D photography. The nose/lip/mouth area, however, is rarely static in our day to day social interactions. METHODS: Non-syndromic patients with cleft lip and palate, and a control group without orofacial clefts underwent 50 frames per second 4D imaging while generating facial expressions including smiling and pouting...
January 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28005772/correction-of-residual-static-and-dynamic-labial-deviations-in-a-paralyzed-face-after-free-gracilis-muscle-transplantation
#9
Ricardo Horta, Inês Correia-Sá, Ricardo Nascimento, Alvaro Silva, José Amarante
Free muscle flap transfer is currently the procedure of choice for longstanding facial paralysis to restore symmetry both at rest and when smiling. However, movements obtained are generally localized, unidirectional, and philtrum centralization and lower lip movement is not proportionally achieved. The stability of free flap insertion at the lips also interferes with the results, as gradual disinsertion and shifting of the nasolabial fold can be caused by repetitive movements. Asymmetry of smile can also be caused by lip depressor inactivity due to marginal mandibular paralysis, and both dynamic and static procedures are often required after dynamic reanimation...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005755/management-of-zygomatic-fractures-in-young-patients-technical-modifications-for-aesthetic-and-functional-results
#10
Antonio Cortese, Giuseppe D'Alessio, Sergio Brongo, Maurizio Gargiulo, Pier Paolo Claudio
INTRODUCTION: The zygomaticomaxillary complex is very vulnerable to injury because of its intrinsically prominent convexity. There are 2 different surgical approaches for the therapy of these fractures: closed reduction and open reduction. In the open reduction 2 or 3 fixation points with related incisions are usually necessary in dislocated fractures: osteosynthesis must be performed starting from zygomaticofrontal suture when dislocated at this site, followed by zygomatic body fixation on the anterior sinus wall, anterior orbital floor margin fixation, and finally orbital floor reconstruction in case of eye globe dislocation with diplopia...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28003132/frequency-and-morbidity-of-temporomandibular-joint-involvement-in-adult-patients-with-a-history-of-juvenile-idiopathic-arthritis
#11
Cory M Resnick, Rushil Dang, Lauren A Henderson, David A Zander, Kimberly M Daniels, Peter A Nigrovic, Leonard B Kaban
PURPOSE: Most patients with juvenile idiopathic arthritis (JIA) have temporomandibular joint (TMJ) involvement, but little is known about the natural history of TMJ disease as these children enter adulthood. The purpose of this study was to evaluate adults with a history of JIA to document the frequency and severity of TMJ abnormalities and morbidity. The authors hypothesized that most would have persistent TMJ disease as adults. MATERIALS AND METHODS: This cross-sectional study included adults (>19 years of age) with JIA who were managed at Boston Children's Hospital (BCH) as children and at Brigham and Women's Hospital (BWH) as adults...
December 2, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28001100/content-validity-of-patient-reported-outcome-instruments-used-with-pediatric-patients-with-facial-differences-a-systematic-review
#12
Natasha M Wickert, Karen W Y Wong Riff, Mark Mansour, Christopher R Forrest, Timothy E E Goodacre, Andrea L Pusic, Anne F Klassen
OBJECTIVE:   The aim of this systematic review was to identify patient-reported outcome (PRO) instruments used in research with children/youth with conditions associated with facial differences to identify the health concepts measured. DESIGN:   MEDLINE, EMBASE, CINAHL, and PsycINFO were searched from 2004 to 2016 to identify PRO instruments used in acne vulgaris, birthmarks, burns, ear anomalies, facial asymmetries, and facial paralysis patients. We performed a content analysis whereby the items were coded to identify concepts and categorized as positive or negative content or phrasing...
December 21, 2016: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/27995122/three-dimensional-morphometric-analysis-of-mandibule-in-coronal-plane-after-bimaxillary-rotational-surgery
#13
Sung-Tak Lee, Na-Rae Choi, Jae-Min Song, Sang-Hun Shin
BACKGROUND: The aim of this report is to present a new reference for aesthetic mandible surgery using three-dimensional cone-beam computed tomography-based treatment planning for orthognathic surgery which can be implemented in surgical planning and perioperative procedure. METHODS: To make an objective standard for evaluating aesthetic mandibular outline, we make an aesthetic scoring criteria with consideration of asymmetry, broad mandibular border line, and prominent mandibular angle...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27993869/the-promotion-of-neural-regeneration-in-a-rat-facial-nerve-crush-injury-model-using-collagen-binding-nt-3
#14
Handong Wang, Hongbin Ni, Sufang Han, Wu Xu, Jing Wang, Baoyu Yuan, Tiansheng Zhu, Wei Jin, Weibang Liang, Jianwu Dai
Traumatic facial nerve injury, an important cause of facial paralysis, has a number of adverse effects, including facial muscle dysfunction and facial asymmetry. It has been demonstrated in our previous work that native human NT-3 fused with a collagen-binding domain (CBD-NT-3) could bind to collagen, specifically to exert neurotrophic effects, promoting axonal regeneration. To evaluate the effect of CBD-NT-3 in inducing facial nerve regeneration and functional recovery, the differing effects of CBD-NT-3 and native neurotrophin-3 (NAT-NT-3) were observed using the results of facial nerve functional recovery, electrophysiological testing, and axonal and myelin changes in a rat model of facial nerve crush injury...
December 2016: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/27980757/aneurysmal-bone-cyst-of-the-mandible-affecting-the-articular-condyle-a-case-report
#15
Ana Belén Marín Fernández, Blas García Medina, Adoración Martínez Plaza, Antonio Aguilar-Salvatierra, Gerardo Gómez-Moreno
Aneurysmal bone cyst (ABC) is a benign osteolytic lesion that is fast-growing, expansile, and locally destructive. The present case is of a young girl with facial asymmetry, which had become accentuated during the previous months. A conservative treatment was performed to reduce morbidity and affectation of the lower dental nerve.
December 2016: Clinical Case Reports
https://www.readbyqxmd.com/read/27958596/lipofilling-as-refinement-procedure-in-maxillo-mandibular-malformations
#16
D Cervelli, G Gasparini, A Moro, S Pelo, E Foresta, F Grussu, G D'Amato, P De Angelis, G Saponaro
Maxillo-mandibular asymmetry has numerous aetiologies: congenital, traumatic, iatrogenic and post-oncologic. Patients with congenital dentofacial malformations are generally submitted to orthognathic surgery and/or additional procedures (genioplasty, alloplastic implants) with satisfactory results. However, despite achieving skeletal symmetry, noticeable facial asymmetry may persist.This study was performed in 45 patients (29 women and 16 men) operated between December 2012 and June 2014. All patients were affected by maxilla-mandibular asymmetry and underwent orthognatic surgery for hard tissue correction of the deformity...
October 2016: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/27957267/psycho-social-impact-of-orthogathic-sugery
#17
Paolo Cariati, Rocío Martínez, Ildefonso Martínez-Lara
BACKGROUND: Orthognathic surgery is a branch of maxillofacial surgery. It carries out the treatment of the facial skeleton asymmetries and deformities. The patients who ask for this surgery are often young people who usually refer symptoms related to dental malocclusion, difficulty eating and temporo-mandibular pain. These physical symptoms are often accompanied by psychological symptoms triggered by their physical appearance such as low self-esteem, self-confidence and negativism about their social and emotional future...
December 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27956720/indication-for-and-limitation-of-the-facial-dismasking-flap-approach-for-skull-base-surgery-to-achieve-the-best-esthetical-and-functional-results
#18
Tomoyuki Yano, Mutsumi Okazaki, Kentaro Tanaka, Atsunobu Tsunoda, Masaru Aoyagi, Seiji Kishimoto
BACKGROUND: The facial dismasking flap (FDF) approach to operations on the deep skull base region consists of a coronal incision and a circumpalpebral incision. This approach provides a wide surgical field for extirpation of deep extended craniofacial tumors without leaving any undesirable scars on the face. Therefore, the FDF approach can provide satisfactory esthetical and functional results. Meanwhile, in some cases, especially in patients with a history of skull base surgery or orbital extension, patients are not fully satisfied even when the FDF approach is used...
January 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27942471/mixed-vascular-nevus-syndrome-a-report-of-four-new-cases-and-a-literature-review
#19
Martino Ruggieri, Agata Polizzi, Serena Strano, Carmelo Schepis, Massimiliano Morano, Giuseppe Belfiore, Stefano Palmucci, Pietro Valerio Foti, Concetta Pirrone, Vito Sofia, Emanuele David, Vincenzo Salpietro, Kshitij Mankad, Pietro Milone
BACKGROUND: Mixed vascular nevus (or nevus vascularis mixtus) represents an admixture of cutaneous vascular malformations of the telangiectatic type and angiospastic spots of nevus anemicus. It can occur as an purely cutaneous trait or as a hallmark of a neurocutaneous phenotype (mixed vascular nevus syndrome) characterised by the combination of: (I) paired vascular (telangiectatic and anemic) twin nevi and brain abnormalities of the Dyke-Davidoff-Masson type (i.e., crossed cerebral/cerebellar hemiatrophy with hypoplasia of the ipsilateral cerebral vessels and homolateral hypertrophy of the skull and sinuses (hyperpneumatisation) with contralateral hemispheric hypertrophy); or (II) paired vascular twin nevi and brain malformations of the Dyke-Davidoff-Masson type in association with systemic abnormalities consisting in facial asymmetry, skeletal anomalies (i...
October 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/27939040/facial-thirds-based-evaluation-of-facial-asymmetry-using-stereophotogrammetric-devices-application-to-facial-palsy-subjects
#20
Marina Codari, Valentina Pucciarelli, Fabiano Stangoni, Matteo Zago, Filippo Tarabbia, Federico Biglioli, Chiarella Sforza
Many conditions can compromise facial symmetry, resulting in an impairment of the affected person from both esthetic and functional points of view. For these reasons, a detailed, focused, and objective evaluation of facial asymmetry is needed, both for surgical planning and for treatment evaluation. In this study, we present a new quantitative method to assess symmetry in different facial thirds, objectively defined on the territories of distribution of trigeminal branches. A total of 70 subjects (40 healthy controls and 30 patients with unilateral facial palsy) participated...
January 2017: Journal of Cranio-maxillo-facial Surgery
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