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Facial deformity

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https://www.readbyqxmd.com/read/29771843/facial-paralysis-in-patients-with-hemifacial-microsomia-frequency-distribution-and-association-with-other-omens-abnormalities
#1
Qiang Li, Xu Zhou, Yue Wang, Jin Qian, Qingguo Zhang
Although facial paralysis is a fundamental feature of hemifacial microsomia, the frequency and distribution of nerve abnormalities in patients with hemifacial microsomia remain unclear. In this study, the authors classified 1125 cases with microtia (including 339 patients with hemifacial microsomia and 786 with isolated microtia) according to Orbital Distortion Mandibular Hypoplasia Ear Anomaly Nerve Involvement Soft Tissue Dependency (OMENS) scheme. Then, the authors performed an independent analysis to describe the distribution feature of nerve abnormalities and reveal the possible relationships between facial paralysis and the other 4 fundamental features in the OMENS system...
May 15, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29771829/repairing-a-facial-cleft-by-polyether-ether-ketone-implant-combined-with-titanium-mesh
#2
Yuan Deng, Weiwei Tang, Zhengkang Li
The Tessier Number 4 cleft is one of the rarest, most complex craniofacial anomalies that presents difficulties in surgical treatment. In this article, we report a case of simultaneous facial depression, eye displacement, and medial canthus deformity. In this case, the maxillary bony defect was reconstructed using computer-assisted design computer-assisted manufacturing (CAD-CAM) polyether-ether-ketone (PEEK) material, and the orbital floor defect was repaired with AO prefabricated titanium mesh. Additionally, the medial canthus was modified with canthopexy and a single Z-plasty flap...
May 15, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29770491/customised-spectacles-using-3-d-printing-technology
#3
Onder Ayyildiz
BACKGROUND: This study describes a novel method of customised spectacles prototyping and manufacturing using 3-D printing technology. METHODS: The procedure for manufacturing customised spectacles using 3-D printing technology in this study involved five steps: patient selection; using surface topography; 3-D printing of the phantom model; 3-D designing of the spectacles; and 3-D printing of the spectacles. RESULTS: The effective time required for 3-D printing of the spectacles was 14 hours...
May 16, 2018: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/29766474/masses-of-developmental-and-genetic-origin-affecting-the-paediatric-craniofacial-skeleton
#4
REVIEW
Salvatore Stefanelli, Pravin Mundada, Anne-Laure Rougemont, Vincent Lenoir, Paolo Scolozzi, Laura Merlini, Minerva Becker
Although rare, masses and mass-like lesions of developmental and genetic origin may affect the paediatric craniofacial skeleton. They represent a major challenge in clinical practice because they can lead to functional impairment, facial deformation and disfigurement. The most common lesions include fibrous dysplasia, dermoid cysts, vascular malformations and plexiform neurofibromas. Less common lesions include torus mandibularis and torus palatinus, cherubism, nevoid basal cell carcinoma syndrome, meningoencephalocele and nasal sinus tract...
May 15, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29765271/approach-to-reconstruction-of-nasal-defects
#5
REVIEW
Berkay Başağaoğlu, Kausar Ali, Pierce Hollier, Renata S Maricevich
The nose is the most central and anterior projecting facial feature. Therefore, the presence of a defect is easily noticeable to the untrained eye. Return of the defect to the original form is an achievable end goal of reconstruction, necessitating appropriate reformation of three-dimensional geometry, proper establishment of symmetry, and excellent color and texture match to the adjacent structures. Regarding its physiological importance, disruption of the normal function may cause respiratory obstruction and contribute to patient distress...
May 2018: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/29761995/-the-progress-of-research-on-three-dimensional-printed-jaw-scaffolds
#6
REVIEW
Shuaishuai Cao, Miao Zhou
Large defects of jaw caused by tumor, trauma and so on in oral and maxillofacial region lead to facial deformity, language and chewing dysfunction, which severely damage the patient's life quality. Three-dimensional printing (3DP) is also named additive manufacturing (AM), which can print materials layer by layer to create three-dimensional objects. The complex shape of jaw defects can be accurately reconstructed using 3DP scaffold combined with image data, computer-aided-design and manufacture. It has specific advantages compared with traditional way of jaw reconstruction and has attracted much attention in the field of jaw tissue engineering recently...
December 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29752860/perspectives-on-oral-squamous-cell-carcinoma-prevention-proliferation-position-progression-and-prediction
#7
REVIEW
P J Thomson
Squamous cell carcinoma arising from oral mucosal epithelium remains a lethal and deforming disease due to tumour invasion, oro-facial destruction, cervical lymph node metastasis and ultimate blood-borne dissemination. Worldwide, 300,000 new cases are seen each year, with a recent and significant rise in incidence affecting particularly the young. In order to rationalize perspectives on preventive strategies in oral cancer management, this paper addresses a number of fundamental questions regarding carcinogenesis: Proliferation - what epithelial cell changes precede tumour development? Position - why are certain oral sites so predisposed to cancer? Progression - why do some precursor lesions progress to invasive carcinoma and others do not? Prediction - how can we predict individual patient and/or lesion behaviour to prevent disease progression? By improving our understanding of oral carcinogenesis, can we thereby facilitate more effective primary, secondary and tertiary preventive strategies and ultimately reduce the global burden of OSCC? This article is protected by copyright...
May 12, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29742362/assessing-attentional-bias-in-secondary-cleft-lip-deformities-an-eye-tracking-study
#8
Alexander Morzycki, Alison Wong, Paul Hong, Michael Bezuhly
OBJECTIVE: Using a well-established measure of attention, we aimed to objectively identify differences in severity between types of simulated secondary cleft lip deformities. DESIGN: Volunteer participants viewed a series of images of a child digitally modified to simulate different secondary unilateral cleft lip deformities (long lip, short lip, white roll/vermilion disjunction, and vermilion excess), a lip scar with no secondary deformity, or a normal lip. Eye movements were recorded using a table-mounted eye-tracking device...
January 1, 2018: Cleft Palate-craniofacial Journal
https://www.readbyqxmd.com/read/29728860/treatment-outcome-of-bimaxillary-surgery-for-asymmetric-skeletal-class-ii-deformity
#9
Yun-Fang Chen, Yu-Fang Liao, Yin-An Chen, Yu-Ray Chen
OBJECTIVES: Facial asymmetry is one of the main concerns in patients with a dentofacial deformity. The aims of the study were to (1) evaluate the changes in facial asymmetry after bimaxillary surgery for asymmetric skeletal class II deformity and (2) compare preoperative and postoperative facial asymmetry of class II patients with normal controls. MATERIALS AND METHODS: The facial asymmetry was assessed for 30 adults (21 women and 9 men, mean age: 29.3 years) who consecutively underwent bimaxillary surgery for asymmetric skeletal class II deformity using cone-beam computed tomography before and at least 6 months after surgery...
May 4, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29728289/bilateral-interdigitated-pacman-flap-for-round-and-oval-facial-defects
#10
Sang-Ha Oh, Hyeokjae Kwon, Sun Je Kim, Hyunwoo Kyung, Young Joon Seo, Dae Hyun Lew, Seung Han Song
BACKGROUND: Skin texture and color are important considerations during the reconstruction of facial defects, and anatomical borders should be preserved. Therefore, a local flap is a better option. In these cases, the authors repaired facial defects using a bilateral interdigitated VY flap. OBJECTIVE: We aim to present a modified bilateral Pacman flap technique for the reconstruction of round and oval facial defects. MATERIALS AND METHODS: We performed a retrospective chart review of 25 patients (26 cases) who underwent bilateral interdigitated Pacman flap repair of round and oval facial defects after Mohs surgery for skin cancer from January 2012 to December 2017...
April 12, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29726408/methyl-modified-silica-nanobowl-for-2d-self-organized-nanostructure-with-hydrophobic-performance
#11
Lingling Chen, Aihua Sun, Biao Wang, Gaojie Xu
A facial method of fabricating methyl modified silica nanobowl using PS template with Tetraethoxysilane (TEOS) and Methyltriethoxysilane (MTES) as co-precursors was reported. The morphology of nanobowl was determined by the mole ratio of TEOS and MTES, the size and shell thickness of the PS@SiO2. And the two-dimensional (2D) ordered nanostructure has also been developed with nanobowl opening perpendicular to the glass substrate surface by Langmuir-Blodgett (LB) technique. These 2D ordered nanobowl structures present adjustable antireflection (AR) property...
May 4, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29725800/development-of-esthetic-prosthesis-for-a-patient-with-severe-stigmatizing-facial-lesions-due-to-cancer-a-pilot-study
#12
Douglas Jordan-Ribeiro, Laura Machado Lara Carvalho, Raquel Vilela, Dayse Danielle Rocha, Paula Lopes Ruas, Antônio Ferreira Ávila, Denis Vasconcelos Ferreira, Eduardo Mateus Motta Trindade, Paulo Henrique Pimentel Santos, Monica Assunção Costa Lima, Leonel Mendoza, Rudolf Huebner
PURPOSE: Severe physical facial deformities due to surgical interventions can have significant psychosocial consequences to patient's relationships with friends and family and thus, has a considerable impact on their quality of life. We have developed a 3D prosthesis for a 56-year-old woman diagnosed with epidermoid carcinoma at the right hemiface, to improve her quality of life. METHODS: The patient started radiotherapy with modulated intensity. To deal with the advance of the process, a maxilectomy of supra structure with modified radical cervical emptying on the right hemiface was performed...
May 3, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29723316/geometric-evaluation-of-the-effect-of-prosthetic-rehabilitation-on-facial-asymmetry-in-patients-with-unilateral-maxillectomy
#13
Amel M Aswehlee, Mariko Hattori, Mahmoud E Elbashti, Yuka I Sumita, Hisashi Taniguchi
PURPOSE: This study aimed (1) to geometrically evaluate areas of facial asymmetry in patients with two different types of maxillectomy defect compared to a control group, (2) to geometrically evaluate the effect of an obturator prosthesis on facial asymmetry, and (3) to investigate the correlation between three-dimensional (3D) deviation values and number of missing teeth. MATERIALS AND METHODS: Facial data from 13 normal control participants and 26 participants with two types of maxillectomy defect (groups 1 and 2) were acquired with a noncontact 3D digitizer...
May 2018: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29720719/surgical-navigation-improves-reductions-accuracy-of-unilateral-complicated-zygomaticomaxillary-complex-fractures-a-randomized-controlled-trial
#14
Xiao Zhang, Lanfeng Ye, Hui Li, Yi Wang, Dilnur Dilxat, Weilong Liu, Yuanwei Chen, Lei Liu
Accurate reduction is the key to successful treatment of bone fractures. Complicated zygomaticomaxillary complex fracture, known as one of the most challenging facial bone fractures, is often hard to achieve an accurate reduction, thus leading to facial deformity. In this study, twenty patients with unilateral complicated zygomaticomaxillary complex fractures were included and randomly divided into experimental and control groups, which is with and without the aid of surgical navigation, respectively. The pre- and postoperative imaging data were collected and then analysed using Geomagic Studio 11 software and Brainlab iPlan CMF 3...
May 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29716177/contouring-of-zygomatic-soft-tissue-using-bilateral-free-groin-flaps-in-a-treacher-collins-syndrome-patient
#15
Jae-Woo Heo, Ung Sik Jin
Treacher Collins syndrome is a congenital disorder that is characterized with a wide range of cranio-facial deformities. Zygomatic hypoplasia or aplasia is one of the key features, and surgical reconstruction of the consequent depression on the zygomatic area is deemed necessary by many patients. Various surgical options are available-injectables, alloplastic materials, autologous grafting, and autogenous tissue transfer. It depends on each patient which technique to use. Here, we present a clinical case, in which bilateral free groin flaps were adopted in attempt to resolve the remnant aesthetic deformity associated with zygomatic depression, despite a series of previous surgical efforts, in a 25-year-old Treacher Collins syndrome male patient...
May 3, 2018: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29709332/surgical-indication-of-furlow-palatoplasty-to-treat-submucous-cleft-palate
#16
Joon Hyun Kwon, Jeong Woo Lee, Jung Dug Yang, Ho Yun Chung, Byung Chae Cho, Kang Young Choi
This study investigated the effects of Furlow palatoplasty on children with submucous cleft palate (SMCP) and identified surgical indications by comparing SMCP and control patients. Twenty-three SMCP children (average age 28.9 months) who were nonsyndromic and underwent surgery between April 2010 and December 2016 were included. Facial computed tomography (CT) was performed preoperatively and at least 1 year postoperatively after a language test. Facial CT measurements were taken for 140 children aged 0-6 years without deformities (control group)...
March 29, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29707444/applications-of-computer-technology-in-complex-craniofacial-reconstruction
#17
Kristopher M Day, Kyle S Gabrick, Larry A Sargent
Background: To demonstrate our use of advanced 3-dimensional (3D) computer technology in the analysis, virtual surgical planning (VSP), 3D modeling (3DM), and treatment of complex congenital and acquired craniofacial deformities. Methods: We present a series of craniofacial defects treated at a tertiary craniofacial referral center utilizing state-of-the-art 3D computer technology. All patients treated at our center using computer-assisted VSP, prefabricated custom-designed 3DMs, and/or 3D printed custom implants (3DPCI) in the reconstruction of craniofacial defects were included in this analysis...
March 2018: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29706553/keeping-the-fat-on-the-right-spot-prevents-contour-deformity-in-temporalis-muscle-transposition
#18
Martinus M van Veen, Steven F S Korteweg, Pieter U Dijkstra, Paul M N Werker
The temporalis muscle transposition is a reliable, one-stage reanimation technique for longstanding facial paralysis. In the variation described by Rubin, the muscle is released from the temporal bone and folded over the zygomatic arch towards the modiolus. This results in unsightly temporal hollowing and zygomatic bulging. We present a modification of this technique, which preserves the temporal fat pad in its anatomical location as well as conceals temporal hollowing and prevents zygomatic bulging. The data of 23 patients treated with this modification were analysed...
April 13, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29679588/growth-and-development-of-craniofacial-structures-in-patients-at-different-ages-with-unrepaired-submucous-cleft-palate
#19
Congcong Cao, Xue Xu, Qian Zheng, Bing Shi, Jingtao Li, Yan Wang
PURPOSE: Submucous cleft palate (SMCP) is a particular subtype of cleft palate deformity; research related to the craniofacial features of patients with SMCP is comparatively rare. The study objective was to perform a cephalometric comparison of the craniofacial features of patients with SMCP and non-cleft controls at different ages. MATERIALS AND METHODS: The sample in this cross-sectional study was composed of 2 groups: SMCP patients and non-cleft controls. The primary predictor variables were study group (cleft and non-cleft) and age...
March 28, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29672904/growth-hormone-gh-insulin-like-growth-factor-1-igf-1-axis-hyperactivity-on-bone-fibrous-dysplasia-in-mccune-albright-syndrome
#20
Daniele Tessaris, Alison M Boyce, Margaret Zacharin, Patrizia Matarazzo, Roberto Lala, Luisa de Sanctis, Michael T Collins
CONTEXT: In fibrous dysplasia (BFD) normal bone and bone marrow are replaced by fibro-osseous tissue, leading to fracture, deformity and pain. BFD may be isolated, or in association with cutaneous hyperpigmentation and/or hyperfunctioning endocrinopathies, termed McCune-Albright syndrome (MAS). GH hypersecretion has been described in 10-20% of MAS-BFD patients. Aim of the study is to determine the impact of GH-insulin like growth factor 1 (IGF1) axis hyperactivity on MAS-BFD morbidities and the efficacy of GH excess therapy...
April 19, 2018: Clinical Endocrinology
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