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Maxillofacial reconstruction

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https://www.readbyqxmd.com/read/28070691/biological-characteristic-effects-of-human-dental-pulp-stem-cells-on-poly-%C3%AE%C2%B5-caprolactone-biphasic-calcium-phosphate-fabricated-scaffolds-using-modified-melt-stretching-and-multilayer-deposition
#1
Natkrita Wongsupa, Thongchai Nuntanaranont, Suttatip Kamolmattayakul, Nuttawut Thuaksuban
Craniofacial bone defects such as alveolar cleft affect the esthetics and functions that need bone reconstruction. The advanced techniques of biomaterials combined with stem cells have been a challenging role for maxillofacial surgeons and scientists. PCL-coated biphasic calcium phosphate (PCL-BCP) scaffolds were created with the modified melt stretching and multilayer deposition (mMSMD) technique and merged with human dental pulp stem cells (hDPSCs) to fulfill the component of tissue engineering for bone substitution...
February 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28065957/the-effect-of-educational-internships-on-medical-students-perceptions-of-plastic-surgery
#2
Andac Aykan, Engin Kurt, Sedat Avsar, Muhitdin Eski, Serdar Ozturk
OBJECTIVE: To investigate the effects of plastic, reconstructive and aesthetic surgery educational internships on medical students' perceptions of the scope of plastic surgery. METHODS: This cross-sectional study was conducted at the Gulhane Medical Faculty, Ankara, Turkey, from 2012 to 2013, and comprised 4th-, 5th- and 6th-year medical students. Students were given a questionnaire consisting of 28 questions related to maxillofacial and upper and lower extremity medical conditions, and skin, aesthetic and congenital anomalies...
January 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28063278/combined-anterolateral-thigh-and-tensor-fasciae-latae-flaps-an-option-for-reconstruction-of-large-head-and-neck-defects
#3
Ramzey Tursun, Hisham Marwan, J Marshall Green, Fawaz Alotaibi, Andre LeDoux
PURPOSE: The advent of microvascular free tissue transfer has provided the reconstructive surgeon with an enormous array of treatment options for reconstruction of large head and neck defects. However, when indicated by defect size, the need for more than 1 flap not only increases surgical complexity but also patient morbidity. The combination of the anterolateral thigh (ALT) flap and the tensor fascia latae (TFL) flap can be used to reconstruct such complex head and neck defects, thereby minimizing any additional morbidity that would be imposed by an additional flap harvest site...
December 26, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28062176/characteristics-and-surgical-management-of-flap-compromise-caused-by-thrombosis-of-the-internal-jugular-vein
#4
Bin Yang, Yi Qu, Ming Su, Jinzhong Li, Hua Li, Rudong Xing, Zhengxue Han
BACKGROUND: A principal reason for flap compromise in oral and maxillofacial head and neck surgery, and failure of a free flap transfer, is thrombosis of a drainage vein such as the internal jugular vein. This study characterized flap compromise caused by internal jugular vein thrombosis after a free flap transfer, and its management. PATIENTS AND METHODS: A retrospective clinical study was conducted of 306 consecutive microvascular free flaps performed for 305 patients with head and neck cancer from March 2003 to March 2013 at the Department of Oral and Maxillofacial Surgery at Beijing Stomatological Hospital, Capital Medical University...
December 18, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28056140/benefits-and-limitations-of-entry-level-3-dimensional-printing-of-maxillofacial-skeletal-models
#5
Alex T Legocki, Andrew Duffy-Peter, Andrew R Scott
Importance: A protocol for creating exceptionally low-cost 3-dimensional (3-D) maxillofacial skeletal models does not require proficiency with computer software or intensive labor. Small and less affluent centers can produce models with little loss in accuracy and clinical utility. Objectives: To highlight the feasibility and methods of introducing in-house, entry-level additive manufacturing (3-D printing) technology to otolaryngologic craniofacial reconstruction and to describe its clinical applications and limitations, including a comparison with available vendor models...
January 5, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28045820/magnet-retained-orbital-prosthesis-using-a-dental-implant
#6
Soung Min Kim
The loss of an eye and the associated facial disharmony has major physical, psychological, and social consequences for patients undergoing orbital exenteration. A magnet-retained prosthesis with an implant has various advantages over both adhesive and spectacle-retained prostheses for reconstruction of the exenterated orbit.The author demonstrates one representative patient with our orbital reconstruction patients with magnetic implants, which will be applied to various maxillofacial prosthesis strategies in the near future...
December 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28039007/pedicle-orientation-in-free-flap-microvascular-maxillofacial-reconstruction
#7
Daniel M Cummins, Beomjune Kim, Arshad Kaleem, Waleed Zaid
Oncologic and traumatic defects of the maxilla can pose a challenge to patients, reconstructive surgeons, and maxillofacial prosthodontists in an attempt to provide satisfactory treatment. Oral-nasal and oral-antral fistulas are frequently treated with soft tissue flaps, osteocutaneous flaps, or a maxillofacial obturator. Often, surgical reconstruction is preferred for patient quality of life and definitive restoration. Surgical reconstruction also avoids the difficulties encountered with fabricating an obturator in an irradiated field with the often-resultant microstomia...
December 10, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28038480/intracranial-ameloblastoma-arising-from-the-maxilla-an-interdisciplinary-surgical-approach
#8
Johanna Quick-Weller, Felix Koch, Nazife Dinc, Stephanie Lescher, Peter Baumgarten, Patrick Harter, Friedrich Scheerer, Robert Sader, Volker Seifert, Gerhard Marquardt, Thomas Freiman
Background Ameloblastomas are a rare tumor entity accounting for only 10% of all odontogenic tumors. They mostly originate from the mandible. Only a few cases are known to grow aggressively and to invade the orbit, nasal cavity, or even the brain. Patient and Methods/Case Report We present the case of a 57-year-old patient who was admitted with a huge tumor involving the nasal cavity, the left maxilla, and the anterior fossa. Histologic diagnosis was made by biopsy. A combined two-stage neurosurgical maxillofacial approach was planned...
December 30, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28027185/use-of-virtual-surgical-planning-for-simultaneous-maxillofacial-osteotomies-and-custom-polyetheretherketone-implant-in-secondary-orbito-frontal-reconstruction-importance-of-restoring-orbital-volume
#9
Neel Patel, Beomjune Kim, Waleed Zaid
Correction of orbito-frontal defects involves a multitude of surgical challenges, and requires careful and detailed planning. In the trauma setting, one must be prepared to deal with injuries to adjacent structures and be able to incorporate their repair into the surgical plan to maximize the functional and esthetic reconstruction for the benefit of the patient. Victims who have sustained trauma of the cranial complex in combination with mid-facial trauma, particularly involving the orbit, present a difficult scenario, especially when future ocular prosthetic rehabilitation is a concern...
December 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28012843/validation-of-a-novel-cognitive-simulator-for-orbital-floor-reconstruction
#10
Renata Khelemsky, Brianna Hill, Daniel Buchbinder
PURPOSE: The increasing focus on patient safety in current medical practice has promoted the development of surgical simulation technology in the form of virtual reality (VR) training designed largely to improve technical skills and less so for nontechnical aspects of surgery such as decision making and material knowledge. The present study investigated the validity of a novel cognitive VR simulator called Touch Surgery for a core maxillofacial surgical procedure: orbital floor reconstruction (OFR)...
December 11, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28008429/applications-of-patient-specific-3d-printing-in-medicine
#11
Martin Heller, Heide-Katharina Bauer, Elisabeth Goetze, Matthias Gielisch, Klaus E Roth, Philipp Drees, Gerrit S Maier, Bernhard Dorweiler, Ahmed Ghazy, Meik Neufurth, Werner E G Müller, Heinz C Schröder, Xiaohong Wang, Christian-Friedrich Vahl, Bilal Al-Nawas
Already three decades ago, the potential of medical 3D printing (3DP) or rapid prototyping for improved patient treatment began to be recognized. Since then, more and more medical indications in different surgical disciplines have been improved by using this new technique. Numerous examples have demonstrated the enormous benefit of 3DP in the medical care of patients by, for example, planning complex surgical interventions preoperatively, reducing implantation steps and anesthesia times, and helping with intraoperative orientation...
2016: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/28005744/a-new-procedure-assisted-by-digital-techniques-for-secondary-mandibular-reconstruction-with-free-fibula-flap
#12
Yao Yu, Wen-Bo Zhang, Xiao-Jing Liu, Chuan-Bin Guo, Guang-Yan Yu, Xin Peng
PURPOSE: To describe a new procedure assisted by digital techniques for secondary mandibular reconstruction with free fibula flap. METHODS: The 3-dimensional (3D) reconstruction images for vessels were used to demonstrate the vascular diameter and location, which help select the most suitable vein and artery for anastomosis. Maxillary and mandibular stone models of the patient were fabricated and a stable occlusal relationship was determined on an articulator. The 3D tooth model data were scanned using a 3D-optical measuring system, and the obtained stereolithographic (STL) data were imported to Geomagic software...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27995223/three-basic-steps-for-applying-digital-images-%C3%A2-to-oral-and-facial-surgery
#13
Michelle Zawartka, Jing Wang, Bin Zheng
In this paper, the authors discuss three basic steps related to the application of digital technology to reconstructive oral and maxillofacial surgery (OMFS), in an effort to improve surgical outcomes. These steps include acquiring digital images, processing images in order to build three-dimentional structures, and mapping images to patient anatomy for guided surgery. For each step mentionioned, available technologies and barriers that need to be overcome are discussed. Digital technology is still under development and it has begun to merge into surgical care...
2016: Chinese Journal of Dental Research
https://www.readbyqxmd.com/read/27991024/-cooperation-between-the-plastic-surgery-and-the-head-neck-surgery-departments-in-the-treatment-of-unusual-cases-veszpr%C3%A3-m-hungary-2010-2015
#14
Zoltán Lóderer, József Piffkó, Károly Somlai, Gábor Bognár, Gábor Sándor
INTRODUCTION: Handling problems in the head and neck region often requires a close cooperation between allied professions, just as in the challenging cases presented by us. Cases and methodology: With the first patient, we performed a radical surgery on the left side of the face due to recidivious basal cell carcinoma, followed by reconstruction using a Type I chimeric anterolateral thigh flap (ALT), while in the case of the second patient, we carried out a radical surgery on the right side of the face due to epithelial carcinoma and reconstruction with a Type I chimeric thoracodorsal flap...
December 2016: Magyar Sebészet
https://www.readbyqxmd.com/read/27986443/3d-printed-simulation-device-for-orbital-surgery
#15
Juergen Thomas Lichtenstein, Alexander Nicolai Zeller, Juliana Lemound, Thorsten Enno Lichtenstein, Majeed Rana, Nils-Claudius Gellrich, Maximilian Eberhard Wagner
OBJECTIVES: Orbital surgery is a challenging procedure because of its complex anatomy. Training could especially benefit from dedicated study models. The currently available devices lack sufficient anatomical representation and realistic soft tissue properties. Hence, we developed a 3D-printed simulation device for orbital surgery with tactual (haptic) correct simulation of all relevant anatomical structures. DESIGN, SETTING, AND PARTICIPANTS: Based on computed tomography scans collected from patients treated in a third referral center, the hard and soft tissue were segmented and virtually processed to generate a 3D-model of the orbit...
January 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/27982242/effect-of-head-position-on-maxillofacial-transverse-measurements-made-on-the-skull-and-cone-beam-computed-tomography-scans
#16
Abbas Shokri, Amirfarhang Miresmaeili, Nasrin Farhadian, Sepideh Falah-Kooshki, Payam Amini, Najmeh Mollaie
Article Incorrect patient positioning and the resultant image distortion occur in many radiographic examinations. This study aimed to assess the effect of tilting, rotation and tipping of the head on the accuracy of maxillofacial transverse measurements made on cone beam computed tomography (CBCT) scans. The CBCT scans were obtained in central position of 10 dry human skulls. Using three-dimensional (3D) Dolphin software, six positions namely 10° and 20° tilts, rotations and tips were reconstructed of central position...
September 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27966517/characterization-of-an-eye-prosthesis-using-monopoly-syrup
#17
Pinki Bankoti, M K Singhal, Chandana Nair, Praveen Chandra
The eye is a vital organ and an important component of facial expression. Loss of an eye has a crippling effect on the psychology of the patient. Maxillofacial prostheses restore and replace stomatognathic and associated facial structures with artificial substitutes. The objectives of eye prosthesis is to improve the patient esthetics, restore and maintain the health of the remaining associated structures, consequently provide physical and mental well-being. The primary purpose of an ocular prosthesis is to maintain the volume of eye socket and create the illusion of a healthy eye and surrounding tissue...
September 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/27957267/psycho-social-impact-of-orthogathic-sugery
#18
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/27922963/publication-trends-in-craniofacial-distraction-a-bibliometrical-analysis
#19
Asra Hashmi, Adam Schumaier, Shenita White, Christina Yi, Faraz A Khan, Curtis J Hanba, Faisal Al-Mufarrej
PURPOSE: The purpose of this study was to analyze the craniofacial distraction literature published over the last 50 years and to determine various trends in publications. METHODS: A literature search was conducted in November and December 2015. The date search range was 1965 to 2015. Databases searched included Medline, Web of Science, Biosis, SciELO, Data Citation, and Zoologic Records. Data were collected on distraction type, author specialty, date of publication, country, state (if United States), number of citations, journal name, journal type, and Le Fort type (for midfacial distractions)...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27922961/costochondral-graft-in-young-children-with-hemifacial-microsomia
#20
Bin-Zhang Wu, Lian Ma, Yang Li, Shuo Chen, Biao Yi
Patients with severely hypoplastic mandibles usually require condylar reconstruction. This study aimed to describe costochondral graft (CCG) for condylar reconstruction and report subsequent outcomes of these grafts in young children with Pruzansky/Kaban type IIB and type III mandibular hypoplasia. This study included 4 young children with type IIB and type III hemifacial microsomia treated with CCG to reconstruct the condyle at the Department of Oral and Maxillofacial Surgery in our hospital from March 2008 to March 2014...
December 5, 2016: Journal of Craniofacial Surgery
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