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Maxillo facial

Jean-Michel Salagnac
INTRODUCTION: The mandible consists of different segments, each of which possess its own specific characteristics regarding emergence, ossification during growth and pathologies. Orthodontists need to be very familiar with these developmental anomalies if they are to avoid failure in their orthopedic or orthodontic treatments and in order to understand the reasons for the lack of success of "conventional" treatments. Each segment must develop correctly if the mandible is to achieve optimal development and occupy a normal position within the cranio-facial complex...
September 2016: L' Orthodontie Française
Sundika Ishwarkumar, Pathmavathie Pillay, Mohammed Rashid Haffajee, Kapil Sewsaran Satyapal
The identification of an individual from skeletal remains plays a vital role in forensic investigation as it is essential for the identification of the individual's age, sex, and/or race and further analysis. Skeletal characteristics differ from one population group to another since population-specific osteometric standards exist for sex determination. Since the mandible is the largest, strongest and most durable compact facial bone, it is the best preserved after death. While sexual dimorphism of the mandible is indicated by its shape and size, morphometric analysis is more accurate in the determination of sex from the skull...
September 26, 2016: Folia Morphologica (Warsz)
A Le Guern, C Marks-Delesalle, L Borry, J Chekroun, C Ciocanea, C Gruchala, L Gogneaux, A Lossouarn, J M Mery, L Nielloud, V Vasseur, S Defoort-Dhelemmes
Although underestimated, visual involvement is among the most frequent neurological complications of head trauma. There is no consensus in the management of these patients and visual recovery is uncertain. The goal of our study is to describe the clinical presentation and the clinical course of traumatic optic neuropathy in patients with head or maxillo-facial trauma. The clinical records of 8 patients, treated from November 2007 to March 2012, were reviewed in the department of ophthalmology (visual testing) of the university regional medical center in Lille...
September 2016: Journal Français D'ophtalmologie
Raluca Ancuta Roman, Mihaela Hedeşiu, Mirela Gersak, Floarea Fidan, Grigore Băciuţ, Mihaela Băciuţ
BACKGROUND AND AIMS: To asses, by using the Cone Beam CT (CBCT) reformatted images, the presence of anatomical variants of the sinonasal cavities and to determine the correlation of these variations with the onset of maxillary sinus inflammations. METHOD: The study is a retrospective one and consists of the investigation of 130 patients with CBCT imaging, patients that were referred to the Maxillo-Facial Clinic, Radiology Department of the Iuliu Hatieganu University of Medicine and Pharmacy in Cluj-Napoca, for clinical symptoms of sinusitis within a period of 24 months...
2016: Clujul Medical (1957)
Simon Sulser, Dirk Ubmann, Martin Schlaepfer, Martin Brueesch, Georg Goliasch, Burkhardt Seifert, Donat R Spahn, Kurt Ruetzler
BACKGROUND: Airway management in the emergency room can be challenging when patients suffer from life-threatening conditions. Mental stress, ignorance of the patient's medical history, potential cervical injury or immobilisation and the presence of vomit and/or blood may also contribute to a difficult airway. Videolaryngoscopes have been introduced into clinical practice to visualise the airway and ultimately increase the success rate of airway management. OBJECTIVE: The aim of this study was to test the hypothesis that the C-MAC videolaryngoscope improves first-attempt intubation success rate compared with direct laryngoscopy in patients undergoing emergency rapid sequence intubation in the emergency room setting...
August 16, 2016: European Journal of Anaesthesiology
Ting-Chen Lu, Gavin Chun-Wui Kang, Chuan-Fong Yao, Eric Jein-Wein Liou, Ellen Wen-Ching Ko, Zung-Chung Chen, Philip Kuo-Ting Chen
BACKGROUND: Timing of surgical intervention in hemifacial microsomia (HFM) is controversial. Although mandibular osteodistraction in childhood for HFM is popular, recent data for single-stage distraction in growing HFM patients demonstrated long-term relapse. Literature suggests that adolescents in the late mixed dentition age or permanent dentition age (11-16-year-old) had more stable outcomes post-distraction than younger children. We present favorable experience using single-treatment simultaneous maxillo-mandibular distraction in early adolescent Pruzansky-Kaban type II HFM patients...
September 2016: Journal of Cranio-maxillo-facial Surgery
Marina Codari, Matteo Caffini, Gianluca M Tartaglia, Chiarella Sforza, Giuseppe Baselli
PURPOSE: Nowadays, with the increased diffusion of Cone Beam Computerized Tomography (CBCT) scanners in dental and maxillo-facial practice, 3D cephalometric analysis is emerging. Maxillofacial surgeons and dentists make wide use of cephalometric analysis in diagnosis, surgery and treatment planning. Accuracy and repeatability of the manual approach, the most common approach in clinical practice, are limited by intra- and inter-subject variability in landmark identification. So, we propose a computer-aided landmark annotation approach that estimates the three-dimensional (3D) positions of 21 selected landmarks...
June 29, 2016: International Journal of Computer Assisted Radiology and Surgery
Antonio Mazzoni, Marco Krengli
Surgery has evolved greatly over the last decades thanks to the more sophisticated and conservative surgical approaches and also thanks to the progress of diagnostic imaging. An added value is represented by the increased experience of the professionals and the close multidisciplinarity of the procedures including neurosurgeons, otolaryngologists and maxillo-facial surgeons. One of the most recent developments is the endoscopic surgery allowing for more conservative and cosmetically satisfactory outcomes. Radiation therapy has greatly changed over the last decades thanks to the technology advances related both to the availability of new imaging modalities and techniques of radiation delivery...
July 2016: Reports of Practical Oncology and Radiotherapy
Carina Adamzyk, Paul Kachel, Mareike Hoss, Felix Gremse, Ali Modabber, Frank Hölzle, Rene Tolba, Sabine Neuss, Bernd Lethaus
Polyetherketoneketone (PEKK) a high performance thermoplastic polymer that is FDA-approved for cranio- and maxillo-facial as well as spineal surgery. We studied the viability, growth and osteogenic differentiation of bone marrow-derived human and sheep mesenchymal stem cells (MSC) in combination with a 3D scaffold made of PEKK using different cell-based assays. To investigate if autologous MSC, either undifferentiated or osteogenically pre-differentiated, augmented bone formation after implantation, we implanted cell-seeded 3D PEKK scaffolds into calvarial defects in sheep for 12 weeks...
August 2016: Journal of Cranio-maxillo-facial Surgery
Ivan Vladislavov Panayotov, Valérie Orti, Frédéric Cuisinier, Jacques Yachouh
Polyetheretherketone (PEEK) is a polyaromatic semi-crystalline thermoplastic polymer with mechanical properties favorable for bio-medical applications. Polyetheretherketone forms: PEEK-LT1, PEEK-LT2, and PEEK-LT3 have already been applied in different surgical fields: spine surgery, orthopedic surgery, maxillo-facial surgery etc. Synthesis of PEEK composites broadens the physicochemical and mechanical properties of PEEK materials. To improve their osteoinductive and antimicrobial capabilities, different types of functionalization of PEEK surfaces and changes in PEEK structure were proposed...
July 2016: Journal of Materials Science. Materials in Medicine
J K Dusseldorp, H C Stamatakis, Y Ren
OBJECTIVES: The aim of this study is to investigate the effect of soft tissue presence on the segmentation accuracy of the 3D hard tissue models from cone-beam computed tomography (CBCT). MATERIALS AND METHODS: Seven pairs of CBCT Digital Imaging and Communication in Medicine (DICOM) datasets, containing data of human cadaver heads and their respective dry skulls, were used. The effect of the soft tissue presence on the accuracy of the segmented models was evaluated by performing linear and angular measurements and by superimposition and color mapping of the surface discrepancies after splitting the mandible and maxillo-facial complex in the midsagittal plane...
May 21, 2016: Clinical Oral Investigations
Valentina Pellacchia, Giancarlo Renzi, Roberto Becelli, Fabio Socciarelli
In this work, the authors will discuss about a new protocol and rapid alternative to isolate the mesenchymal stromal cells from the stromal vascular fraction, without the use of collagenase, to regenerate the bone tissue in the maxillo-facial region. This method employs a device that allows the isolation and concentration of stromal vascular fraction by means of lipoaspirates, which separate the lipid component and fragments of the extracellular matrix. The innovative element consists in using a filtration device instead of a centrifuging device to separate the different components...
May 2016: Journal of Craniofacial Surgery
Armelle Manière-Ezvan, Charles Savoldelli, Floriant Busson, Arlette Oueiss, Jean-Daniel Orthlieb
These interventions usually aimed at the correction of the skeletal discrepancy by mandibular retrognatism with an advancement of the distal portion of the mandible after mandibular osteotomy. The position of the condyle is determined during the osteosynthesis with miniplates. Condyles are set back in relation with the supine position of the patient and the weakness of his (her) curarized muscle. All studies show that surgery of mandibular advancement causes a lateral, torque and backward movement of the condyles, all harmful to the condyles...
March 2016: L' Orthodontie Française
Mourad Sebbar, Amal El Aouame, Idriss Tougui
INTRODUCTION: Management of adult patients with a cleft lip and palate is often multidisciplinary. The aim of orthodontic treatment is to correct the malocclusion. When the skeletal dysmorphosis is significant, the solution has to be orthognathic surgery. OBSERVATION: The authors report the case of a 16-year-old patient with a cleft lip and palate and a skeletal Class III. The aim of the orthodontic treatment was to correct dento-alveolar compensations. The skeletal discrepancy was corrected by maxillary advancement and mandibular setback...
June 2016: International Orthodontics
Ilaria Zollino, Michele Zuolo, Sergio Gianesini, Massimo Pedriali, Maria Grazia Sibilla, Mirko Tessari, Francesco Carinci, Savino Occhionorelli, Paolo Zamboni
OBJECTIVES: The present review represents a translational boundary between basic research and surgery, particularly focusing on the promising application of adipose-derived stem cells harvested intra-operatively during debridement of venous leg ulcers. METHODS: We reviewed 830 out of 5578 articles on MEDLINE starting from 1997 and sorted by the relevance option. RESULTS: The technique currently used for adipose-derived stem cells intra-operative harvesting is presented, including a safety evaluation on a cohort of 5089 revised patients who underwent plastic surgery and maxillo-facial surgical procedures...
April 7, 2016: Phlebology
Francesca Arpone, Florian Combremont, Kerstin Weber, Paolo Scolozzi
Burning mouth syndrome (BMS) is a medical condition that is often refractory to conventional diagnostic and therapeutic methods. Patients suffering from BMS can benefit from a biopsychosocial approach in a joint, medical-psychological consultation model. Such a consultation exists at Geneva University Hospitals, involving the collaboration of the maxillo-facial and oral surgery division and the division of liaison psychiatry and crisis intervention, in order to take into account the multiple factors involved in BMS onset and persistence...
February 10, 2016: Revue Médicale Suisse
Daniel Lonic, Betty Chien-Jung Pai, Kazuaki Yamaguchi, Peerasak Chortrakarnkij, Hsiu-Hsia Lin, Lun-Jou Lo
BACKGROUND: Although conventional two-dimensional (2D) methods for orthognathic surgery planning are still popular, the use of three-dimensional (3D) simulation is steadily increasing. In facial asymmetry cases such as in cleft lip/palate patients, the additional information can dramatically improve planning accuracy and outcome. The purpose of this study is to investigate which parameters are changed most frequently in transferring a traditional 2D plan to 3D simulation, and what planning parameters can be better adjusted by this method...
2016: PloS One
Claudio Ungari, Emiliano Riccardi, Gabriele Reale, Alessandro Agrillo, Claudio Rinna, Valeria Mitro, Fabio Filiaci
AIM: The aim of this study was to determinate how orthognatic surgery aids to cure many skull and face abnormalities and to help re-establishing the correct occlusive relation thanks to the repositioning of the maxillo-mandibular skeleton basis. METHODS: The study included 183 male patients and 338 female patients, with an average age of 23 years. The sample series was divided according to specific pathologies. All patients underwent surgical procedures and the therapeutic strategy was determined based on the anomalies presented...
July 2015: Annali di Stomatologia
A S Grigoryan
Evidence based medicine is the conscientious, explicit, and judicious use of current best evidence in making decisions about the care of individual patients.
2016: Stomatologii︠a︡
Edoardo Brauner, Valentino Valentini, Sara Jamshir, Giorgio Guarino, Andrea Battisti, Maria Teresa Fadda, Giorgio Pompa
BACKGROUND: Numerous studies have been published about the prosthetic rehabilitation of the postoncological maxillo-facial patient, but the guidelines that emerge lack a correlation between the anatomical classification of the treated site, which generally is preparatory upon surgery, and the type of prosthetic rehabilitation appropriate to the new anatomical and functional condition. With this correlation, it would be possible to obtain a multidisciplinary and predictable therapeutic process, able to identify from the beginning the best type of prosthetic rehabilitation...
February 2016: Minerva Stomatologica
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