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Maxilla fracture

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https://www.readbyqxmd.com/read/29892332/virtual-surgical-planning-for-the-management-of-severe-atrophic-mandible-fractures
#1
Jaime Castro-Núñez, Jared M Shelton, Susan Snyder, Joseph Van Sickels
Severely atrophic mandible fractures are frequently a challenge to treat. Virtual surgical planning (VSP) uses three-dimensional computed tomographic (CT) scans that can be translated into stereolithographic models to fabricate surgical templates, facilitating intraoperative procedures. The purpose of this article is to describe the reconstruction of two cases of severe atrophic mandible fracture using VSP. Two elderly edentulous/partially dentate patients who presented with fractures of their mandibles and who underwent reconstruction using VSP were included...
June 2018: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29791684/stability-of-the-anterior-arm-of-three-different-hyrax-hybrid-expanders-an-in-vitro-study
#2
Gonzalo de la Iglesia, André Walter, Fernando de la Iglesia, Heinz Winsauer, Andreu Puigdollers
INTRODUCTION: The force applied to the teeth by fixed orthopaedic expanders has previously been studied, but not the force applied to the orthodontic mini-implant (OMI) used to expand the maxilla with Hyrax hybrid expanders (HHE). OBJECTIVE: The aim of this article was to evaluate the clinical safety of the components (OMI, abutment and double wire arms) of three different force-transmitting systems (FTS) for conducting orthopaedic maxillary expansion: Jeil Medical & Tiger Dental™, Microdent™ and Ortholox™...
January 2018: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/29769591/clinical-retrospective-case-control-study-on-the-mechanics-of-obstacle-in-mouth-opening-and-malocclusion-in-patients-with-maxillofacial-fractures
#3
Hai-Hua Zhou, Kun Lv, Rong-Tao Yang, Zhi Li, Xue-Wen Yang, Zu-Bing Li
This study aims to identify and distinguish various factors that may influence the clinical symptoms (limited mouth opening and malocclusion) in patients with maxillofacial fractures. From January 2000 to December 2009, 963 patients with maxillofacial fractures were enrolled in this statistical study to aid in evaluating the association between various risk factors and clinical symptoms. Patients with fractured posterior mandibles tended to experience serious limitation in mouth opening. Patients who sustained coronoid fractures have the highest risk of serious limitation in mouth opening (OR = 9...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29739624/fracture-loads-and-failure-modes-of-customized-and-non-customized-zirconia-abutments
#4
Izabela Cristina Maurício Moris, Yung-Chung Chen, Adriana Cláudia Lapria Faria, Ricardo Faria Ribeiro, Alex Sui-Lun Fok, Renata Cristina Silveira Rodrigues
OBJECTIVE: This study aimed to evaluate the fracture load and pattern of customized and non-customized zirconia abutments with Morse-taper connection. METHODS: 18 implants were divided into 3 groups according to the abutments used: Zr - with non-customized zirconia abutments; Zrc - with customized zirconia abutments; and Ti - with titanium abutments. To test their load capacity, a universal test machine with a 500-kgf load cell and a 0.5-mm/min speed were used. After, one implant-abutment assembly from each group was analyzed by Scanning Electron Microscopy (SEM)...
May 5, 2018: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29727315/autopsy-features-of-fatal-donkey-attack
#5
Lajos Fogel, Gyula Varga, Marta Hubay, Endre Felszeghy, Peter Varga, Roger W Byard
Lethal donkey attacks have very rarely been described. The case of a 65-year-old man who was found deceased on a country road with 2 domestic donkeys nearby is, therefore, reported. Examination of the body revealed contusions and lacerations of the face and scalp, a comminuted fracture of the left maxilla, comminuted fracturing of the right radius and ulna and of the left anterior superior iliac spine, a flail chest, and pulmonary contusions. In addition, there were bite marks on the left thigh, right buttock, right axilla/upper arm, and left cheek which corresponded to the dental arcades of the donkeys...
May 2, 2018: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29692842/technical-quality-of-root-canal-treatment-performed-by-undergraduate-clinical-students-of-isfahan-dental-school
#6
Masoud Saatchi, Golshan Mohammadi, Armita Vali Sichani, Saba Moshkforoush
Introduction: The aim of the present study was to evaluate the radiographic quality of RCTs performed by undergraduate clinical students of Dental School of Isfahan University of Medical Sciences. Methods and Materials: In this cross sectional study, records and periapical radiographs of 1200 root filled teeth were randomly selected from the records of patients who had received RCTs in Dental School of Isfahan University of Medical Sciences from 2013 to 2015. After excluding 416 records, the final sample consisted of 784 root-treated teeth (1674 root canals)...
2018: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/29685338/open-reduction-and-internal-fixation-of-palatal-fractures-using-three-dimensional-plates
#7
Karthik R, Cynthia S, Vivek N, Prashanthi G, Saravana Kumar S, Rajyalakshmi V
The maxilla is arguably the most anatomically intricate structure of the craniofacial skeleton, and the hard palate is an important bone that regulates the width and architecture of the face. The management of palatal fractures has long been a matter of debate, and varies with anatomical pattern and other injuries to the craniofacial skeleton. We have studied 18 palatal fractures during a five-year period that were treated using 3-dimensional rectangular plates placed across the palatal vault together with fixation of other fractures of the facial bones...
June 2018: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/29664830/transcatheter-arterial-embolization-in-the-treatment-of-maxillofacial-fractures-with-life-threatening-hemorrhage
#8
Shokei Matsumoto, Taku Akashi, Kei Hayashida, Kazuhiko Sekine, Tomohiko Orita, Tomohiro Funabiki, Mitsuhide Kitano
INTRODUCTION: Transcatheter arterial embolization (TAE) has gained importance in the management of maxillofacial fractures with life-threating hemorrhage (MFH). However, clinical evidence supporting the use of TAE has not been clearly established in the literature. Therefore, we evaluated the effectiveness of TAE for MFH, based on data obtained from the Japan Trauma Data Bank. METHODS: Patients were identified from Japan Trauma Data Bank entries for the years 2004 to 2014...
June 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29571670/maxillary-tumour-induced-osteomalacia
#9
O Emodi, A Rachmiel, D Tiosano, R M Nagler
Tumour-induced osteomalacia (TIO) is a rare paraneoplastic form of renal phosphate wasting that results in severe hypophosphatemia, defective vitamin D metabolism, and osteomalacia. In the case reported here, maxillary TIO was not diagnosed for 6years, although initial complaints were reported when the patient was 12years old. Meanwhile she suffered from profound growth limitation, pain, weakness, and spontaneous multiple bone fractures, culminating in complete loss of ambulatory ability and severe limitation in daily activities...
March 20, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29559219/rehabilitation-of-edentulous-jaws-with-zirconia-complete-arch-fixed-implant-supported-prostheses-an-up-to-4-year-retrospective-clinical-study
#10
Michael Tischler, Claudia Patch, Avinash S Bidra
STATEMENT OF PROBLEM: Limited data are available on the clinical outcomes of patients with edentulism treated with zirconia complete-arch fixed implant-supported prostheses (CAFIPs). PURPOSE: The primary purpose of this retrospective clinical study was to study the failure rate of dental implants as well as the fracture rate of zirconia CAFIPs. The secondary purpose was to study the survival outcomes of patients with edentulism treated with zirconia CAFIPs as well as the rate of technical complications...
March 17, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29534871/fiber-reinforced-resin-fixed-prostheses-on-4-short-implants-in-severely-atrophic-maxillas-1-year-results-of-a-prospective-cohort-study
#11
Florian Wagner, Rudolf Seemann, Mauro Marincola, Rolf Ewers
PURPOSE: The aim of this study was to report on 1-year outcomes of fixed full-arch fiber-reinforced resin bridges on short implants in atrophic maxillary jaws. MATERIALS AND METHODS: A prospective cohort study was designed and patients with severely atrophic maxillas, corresponding to Cawood and Howell Classes V and VI, were included. Mesial and distal peri-implant bone levels were assessed on panoramic radiographs that were taken at the time of implant insertion (baseline) and during follow-up visits...
February 19, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29520416/assessment-of-sensitivity-of-whole-body-ct-for-major-trauma
#12
Susan Yoong, Ravi Kothari, Adam Brooks
INTRODUCTION: Whole body computed tomography has become standard practice in many centres in the management of severely injured trauma patients, however, the evidence for it's diagnostic accuracy is limited. AIM: To assess the sensitivity of whole body CT in major trauma. METHOD: Retrospective review of all patients with injury severity score (ISS) > 15 presenting with blunt trauma to a UK Major Trauma Centre between May 2012 and April 2014...
March 8, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29491620/cervicofacial-infection-in-a-3-year-old-child-with-regional-odontodysplasia-a-case-report-and-literature-review
#13
Eleanor Bowden, Conor Carroll, Mishaal Gill, Rodney Llewelyn
Regional odontodysplasia (RO) also known as ghost teeth is a rare developmental anomaly affecting the mesodermal and ectodermal components of teeth with characteristic clinical and radiographic findings. The enamel and dentin are hypomineralized and hypocalcified with short roots and open apices. The affected teeth have an abnormal morphology, meaning they are fragile and thin and liable to fracture and decay. Radiographically, there is a marked reduction in radiodensity with little distinction between the enamel and dentin, hence the term "ghost teeth...
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/29491591/horizontal-alveolar-ridge-expansion-followed-by-immediate-placement-of-implants-and-rehabilitation-with-zirconia-prosthesis
#14
Tatiana Miranda Deliberador, Thalyta Verbicaro, Leonel Minerva, Rafaela Scariot, Allan Fernando Giovanini, João César Zielak
In recent years, there have been a growing number of procedures involving dental implants. Most cases, though, are characterized by bone atrophy, especially horizontal atrophy. This clinical case aims to report a technique for the expansion of the horizontal alveolar ridge. A longitudinal fracture was created in the alveolar ridge to expand the bone, followed by immediate insertion of dental implants along with a particulate allogeneic bone graft. Eight implants were placed in the maxilla, and after 12 months, a surgical reopening was performed, along with rehabilitation with a protocol-type prosthesis, for which a zirconia infrastructure was made...
September 2017: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29481518/juvenile-nasopharyngeal-angiofibroma-with-sphenoid-sinus-invasion-and-protrusion-treatment-approach-with-le-fort-i-osteotomy
#15
Claiton Heitz, Alexandre Weber, Leandro Dini, Guilherme Pivatto Louzada, Eduardo Lombardo
Juvenile nasopharyngeal angiofibroma (JNA) is a rare benign tumor that occurs predominantly in young males. The authors report the case of a 22-year-old male patient who presented with a painless, exophytic tumor mass protruding through the right nostril, with anterior lateral extension associated with severe posterior involvement, erosion of the sphenoid bone to the right of the pterygoid process, and significant epistaxis. The preoperative evaluation, surgical approach, postoperative results, and a review of the literature are presented...
February 23, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29480233/3d-reconstruction-images-of-cone-beam-computed-tomography-applied-to-maxillofacial-fractures-a-case-study-and-mini-review
#16
Liyun Bai, Linlin Li, Kexin Su, Anthony Bleyer, Yuanyuan Zhang, Ping Ji
Maxillofacial injuries can be complex and are clinically important due to their functional and cosmetic significance. Maltreated and missed fractures might cause deformity of the face; thus, accurate evaluation of the fracture provided by X-ray images is critical. In this study, we explore the application of cone-beam computed tomography (CBCT) for diagnosis of severe maxillofacial traumas. A patient with a complex fracture that affects the maxilla, mandible, wall of the maxillary sinus, zygoma, zygomatic arch and nasal bone was diagnosed using 3D reconstruction of CBCT images...
2018: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/29476683/changing-pattern-and-etiology-of-maxillofacial-fractures-during-the-civil-uprising-in-western-libya
#17
M-S Elarabi, A-B Bataineh
BACKGROUND: The purpose of the present study was to evaluate changing pattern in characteristics of maxillofacial fractures and concomitant injuries in Western Libya During revolution and to assess the association between mechanism of injury and fracture patterns. MATERIAL AND METHODS: A retrospective review of medical records and radiographs of 187 patients treated for maxillofacial fractures from January 2010 to December 2012 was performed, there were 326 fractures in 187 patients...
March 1, 2018: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29476584/retrospective-evaluation-of-extended-heat-pressed-ceramic-veneers-after-a-mean-observational-period-of-7-years
#18
Sven Rinke, Anne-Kathrin Pabel, Xenia Schulz, Matthias Rödiger, Gerhard Schmalz, Dirk Ziebolz
OBJECTIVES: Retrospective evaluation of extended anterior glass-ceramic veneers 7 years after placement in a private practice. MATERIALS AND METHODS: A total of 31 patients (20 females/11 males) underwent restoration with adhesively luted extended veneers that were fabricated using heat-pressed glass-ceramic (Cergo, Dentsply Sirona). A single dentist restored 101 teeth (maxilla, n = 65; mandible, n = 36). Adhesive cementation was performed using an etch-and-rinse adhesive (OptibondFL, Kerr Corporation), and two different dual-curing composite cements (Variolink, Ivoclar Vivadent/Calibra, Dentsply Sirona)...
February 24, 2018: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29422224/development-of-a-novel-anatomical-thin-titanium-mesh-plate-with-reduction-guidance-and-fixation-function-for-asian-zygomatic-orbitomaxillary-complex-fracture
#19
Yu-Tzu Wang, Chih-Hao Chen, Po-Fang Wang, Chun-Li Lin
For this study we developed an anatomical thin titanium mesh (ATTM) plate for Asian zygomaticomaxillary complex (ZMC) fracture repair with reduction guidance and fixation function. The ATTM plate profile was designed as an L-shape to fix at the anterior maxilla and lateral buttress of the ZMC. Computer-aided stamping analysis was performed on four screw-hole patterns in the ATTM plate - a control without screw-holes, square screw-holes, double screw-holes, and large-diameter, double screw-holes - using upper/lower dies of averaged ZMC reconstruction models...
April 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29402514/dynamic-analysis-of-maxillary-perfusion-during-le-fort-i-osteotomy-using-indocyanine-green
#20
S Salman, T Fattahi, R Fernandes, B Steinberg
The aim of this study was to evaluate the dynamic perfusion of the maxilla during various stages of a Le Fort I osteotomy using indocyanine green (ICG) dye angiography. This was a retrospective evaluation of patients who underwent a Le Fort I osteotomy. ICG was used to assess perfusion at specific time points during the procedure. Twenty-four patients underwent a Le Fort I osteotomy with dynamic perfusion ICG angiography. Statistically significant differences in perfusion were noted at all three locations assessed between preoperative (T0), post down-fracture (T1), and postoperative (T2) time points...
February 2, 2018: International Journal of Oral and Maxillofacial Surgery
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