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Maxillary fractures

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https://www.readbyqxmd.com/read/28918998/convex-bone-deformity-after-closed-reduction-of-nasal-bone-fracture
#1
Hiroshi Nishioka, Shoji Kondoh, Shunsuke Yuzuriha
BACKGROUND: Nasal fracture is the most common type of facial fracture treated by plastic surgeons. Here, we clarify the postoperative deformities that frequently remain after closed reduction of fresh nasal bone fracture by three-dimensional computed tomography (3D-CT). METHODS: Hundred consecutive cases of fresh nasal bone fracture in patients treated between May 2010 and January 2016 were examined. After closed reduction, the overall appearance of the arch formed by the nasal bone and maxillary process was evaluated as 'Excellent', 'Good' or 'Fair'...
August 24, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28913295/management-of-le-fort-i-fracture
#2
REVIEW
Hak Su Kim, Seong Eun Kim, Hyun Tae Lee
Among the classification of maxillary fracture, the Le Fort classification is the best-known categorization. Le Fort (1901) completed experiments that determined the maxilla areas of structural weakness which he designated as the "lines of weakness". According to these results, there are three basic fracture line patterns (transverse, pyramidal and craniofacial disjunction). A transverse fracture is a Le Fort I fracture that is above the level of the apices of the maxillary teeth section, including the entire alveolar process of the maxilla, vault of the palate and inferior ends of the pterygoid processes in a single block from the upper craniofacial skeleton...
March 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28913290/delayed-onset-methicillin-resistant-staphylococcus-aureus-infection-at-18-months-after-absorbable-plate-fixation-for-zygomaticomaxillary-complex-fracture
#3
Hyun Rok Lee, Hea Kyeong Shin, Dong Lark Lee, Gyu Yong Jung
None of the reports of delayed infection mentioned a latent period exceeding 13 months. we report an infection that developed 18 months after implantation of an absorbable plate. A 16-year-old adolescent girl had undergone reduction and fixation with an absorbable plate for Lefort I and zygomaticomaxillary complex fractures 18 months prior at our hospital. In her most recent hospital visit as an outpatient, abscess was observed in periocular area. Computed tomography revealed sinusitis with an abscess above the infraorbital rim...
December 2016: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28893016/comparison-of-intubating-conditions-using-fentanyl-plus-propofol-versus-fentanyl-plus-midazolam-during-fiberoptic-laryngoscopy
#4
Parmod Kumar, Tripat Kaur, Gurpreet Kaur Atwal, Jatinderpaul Singh Bhupal, Ajay Kumar Basra
INTRODUCTION: Awake nasal or oral flexible fiberoptic intubation is the airway management technique of choice in known or anticipated difficult airway, unstable cervical fracture, limited mouth opening (as in temporomandibular joint disease), mandibular-maxillary fixation and severe facial burns. Both optimal intubating condition and patient comfort are important for fiberoptic intubation. Optimal intubating conditions provided by an ideal sedation regimen would ensure haemodynamic stability, patient comfort, attenuation of airway reflexes and amnesia...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890610/evaluation-of-novel-glass-fiber-reinforced-composite-technique-for-primary-anterior-teeth-with-deep-carious-lesions-a-12-month-clinical-study
#5
Ajinkya Sawant, Yusuf Chunawalla, Abdul Morawala, Nupur S Kanchan, Kapil Jain, Rohan Talathi
BACKGROUND: Early childhood caries discloses a distinct clinical pattern, and the teeth most often involved are the maxillary central incisors, lateral incisors, and the maxillary and man-dibular first molars. The maxillary incisors are most severely affected, with deep carious lesions usually involving the pulp. Teeth that have been endodontically treated often have little coronal tooth tissue remaining and as such require a post to retain the core and restoration .This study evaluated and compared the efficacy of EverStick glass fiber-reinforced composite post with ParaPost Taper Lux in primary maxillary anterior teeth...
April 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28887879/orbital-floor-fracture-repair-the-endonasal-approach
#6
T Kuhnel, H Jagle, W Hosemann, R Weber, V Vielsmeier
To avoid the dangers associated with lower eyelid approaches to the orbital floor and to improve visualization, we propose an endoscopic procedure for orbital floor fracture reduction and osteosynthesis using endonasal access via the medial maxillary sinus wall. The technique of endoscopic, endonasal transantral surgery is described, together with a retrospective analysis of 17 patients who had undergone this surgical procedure in the Department of Otorhinolaryngology, University of Regensburg, between July 2013 and June 2016...
September 9, 2017: Rhinology
https://www.readbyqxmd.com/read/28886951/strength-comparison-of-anterior-teeth-restored-with-ceramic-endocrowns-vs-custom-made-post-and-cores
#7
Beata Dejak, Andrzej Młotkowski
PURPOSE: The aim of the study was to compare strength of the anterior teeth restored with ceramic endocrowns versus custom-made post and core. METHODS: The investigation used the finite element analysis. Three 3-D models of maxillary central incisor were created: model A-tooth restored with metal post and core with ceramic crown; model B-tooth with leucite ceramic endocrown; model C-tooth with lithium disilicate ceramic endocrown. Each model was subjected to a 100N force applied at a distance of 5mm from the incisal edge, at the angle of 130° to the long axis of the tooth...
September 5, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28875527/management-of-an-uncomplicated-crown-fracture-by-re-attaching-the-fractured-fragment-case-report
#8
Josué Martos, Karoline Von Ahn Pinto, Tiago Martins Feijó Miguelis, Cristina Braga Xavier
Coronal fractures of the anterior teeth are common sequelae of traumatic dental injuries. Reattachment of fractured tooth fragments using dental adhesive techniques offers some advantages, including restoration of the function, aesthetics, shape, texture and brightness of the surface. The present report describes a clinical case of reattachment with a 4-year clinical and radiographic follow-up in a permanent maxillary central incisor with an uncomplicated crown fracture. Fragment reattachment is a conservative procedure, preserving aesthetics and functionality, and it can provide an immediate positive emotional response from the patient...
September 6, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28874990/in-vitro-study-of-the-fracture-resistance-of-monolithic-lithium-disilicate-monolithic-zirconia-and-lithium-disilicate-pressed-on-zirconia-for-three-unit-fixed-dental-prostheses
#9
Jae-Won Choi, So-Yeun Kim, Ji-Hyeon Bae, Eun-Bin Bae, Jung-Bo Huh
PURPOSE: The purpose of this study was to determine fracture resistance and failure modes of three-unit fixed dental prostheses (FDPs) made of lithium disilicate pressed on zirconia (LZ), monolithic lithium disilicate (ML), and monolithic zirconia (MZ). MATERIALS AND METHODS: Co-Cr alloy three-unit metal FDPs model with maxillary first premolar and first molar abutments was fabricated. Three different FDPs groups, LZ, ML, and MZ, were prepared (n = 5 per group)...
August 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28857988/stability-of-orbital-floor-fracture-fixation-after-endoscope-assisted-balloon-placement
#10
Tsutomu Kashimura, Kazutaka Soejima, Yuji Kikuchi, Hiroaki Nakazawa
In recent years, endoscope-assisted balloon fixation using transantral and endonasal approaches has gained popularity as a minimally invasive treatment for orbital floor fractures. However, the optimal duration for balloon placement and the efficacy of the method have not been fully evaluated. The authors report their assessment of this method using postoperative and chronological measurements of the maxillary sinus volume.Fourteen patients with blowout fracture of the orbital floor who underwent reduction using endoscopic transantral and endonasal approaches followed by 6-week fixation with a balloon were evaluated...
August 28, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28855714/the-pterygomaxillary-junction-an-imaging-study-for-surgical-information-of-lefort-i-osteotomy
#11
Yen-Po Chin, Maria Belen Leno, Sarayuth Dumrongwongsiri, Kyung Hoon Chung, Hsiu-Hsia Lin, Lun-Jou Lo
Maxillary osteotomy is a common surgical procedure and often involves separation of the pterygomaxillary junction (PMJ), which is a "blinded" procedure with inherent risks. Knowledge of the PMJ structure is essential. It remains unclear whether patients with different facial types have different PMJ structures, or different surgical outcome. This study evaluated the computed tomographic images of 283 consecutive patients who received orthognathic surgery. Patients were classified into Angle class I, II, III and cleft lip/palate groups...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28843882/influence-of-various-bonding-techniques-on-the-fracture-strength-of-thin-cad-cam-fabricated-occlusal-glass-ceramic-veneers
#12
Christine Yazigi, Matthias Kern, Mohamed Sad Chaar
OBJECTIVES: To evaluate the efficiency of immediate dentin sealing and the effects of different bonding protocols on the fracture strength of CAD/CAM occlusal veneers bonded to exposed dentin. METHODS: Ninety-six extracted maxillary premolars were initially divided into three main groups with 32 specimens each: without immediate dentin sealing, immediate dentin sealing/total etching and immediate dentin sealing/selective etching. Teeth were identically prepared in the dentin to receive occlusal veneers of 0...
August 15, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28839406/an-appraisal-of-the-prevalence-and-attributes-of-traumatic-dental-injuries-in-the-permanent-anterior-teeth-among-7-14-year-old-school-children-of-north-east-delhi
#13
Kopal Garg, Namita Kalra, Rishi Tyagi, Amit Khatri, Gaurav Panwar
AIMS: The aim of this study was to assess the prevalence, associated risk factors, characteristics, and pattern of traumatic dental injuries (TDIs) in the permanent anterior teeth among school children of North East Delhi area. SETTINGS AND DESIGN: A cross-sectional study was done in 3000 school-going children aged 7-14 years. MATERIALS AND METHODS: A detailed case history and clinical examination were performed on the entire sample population...
April 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/28834837/open-versus-closed-reduction-of-maxillary-fractures-complications-and-resource-utilization
#14
Yasmina Zoghbi, David J Gerth, Jun Tashiro, Albert Lee, Seth R Thaller
INTRODUCTION: Maxillary fractures are frequently managed depending on the surgeon's preferences, nature of the injury, presence of associated injuries, and comorbidities. Current literature advocates open reduction with plating versus closed techniques. However, data defining associated costs and complications comparing the 2 approaches remains lacking. METHODS: National Inpatient Sample (2006-2011) was examined for patients undergoing closed or open (76.73-76.74) reduction of maxillary fractures...
August 22, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28820172/timing-of-surgery-in-traumatic-globe-dislocation
#15
Md Shahid Alam, Olma Veena Noronha, Bipasha Mukherjee
Traumatic globe dislocation into the maxillary sinus is a rare event and usually associated with a poor visual outcome if not managed appropriately. We report a 45-year-old female patient who presented to the emergency after blunt injury to her face with a door. Initial evaluation revealed nil perception of light and an apparently anophthalmic socket. Neuroimaging revealed large floor and medial wall fracture with dislocation of the globe into the maxillary sinus. The patient underwent exploration with repositioning of the globe and fracture repair...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28806382/orbital-cellulitis-following-orbital-blow-out-fracture
#16
Je Yeon Byeon, Hwan Jun Choi
Orbital cellulitis and abscess have been described in the literature as complication that usually occur secondary to infection in the maxillary, ethmoidal, and frontal sinuses. If left untreated, it can lead to blindness, cavernous sinus thrombosis, meningitis, or cerebral abscess. Orbital fractures are a common sequela of blunt orbital trauma, but are only rarely associated with orbital cellulitis. So, the authors present rare orbital cellulitis after orbital blow-out fracture. A 55-year-old Asian complains of severe orbital swelling and pain on the left side...
August 10, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28796346/fracture-of-nickel-titanium-rotary-instrument-during-root-canal-treatment-and-re-treatment-a-5-year-retrospective-study
#17
K Alfouzan, A Jamleh
AIM: To evaluate retrospectively the incidence of K3 nickel titanium rotary instrument fracture in referred cases during root canal treatment and re-treatment. METHODOLOGY: Clinical and radiographic reports of 12867 endodontic cases treated at the King Abdulaziz medical city between January 2010 and November 2015 were reviewed to obtain information on intra-canal fractured instruments with respect to the treatment performed, tooth type, and the size and at what level the instrument fractured (coronal, middle or apical)...
August 10, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28774943/epidemiological-survey-on-equine-cheek-tooth-infundibular-caries-in-the-united-kingdom
#18
Dewi Borkent, Richard Reardon, Padraic M Dixon
Infundibular caries (IC) is an important equine dental disorder that can cause premature wear, fractures and apical infection of affected maxillary cheek teeth. No accurate prevalence values for IC are available for UK horses. The feeding of high levels of concentrates is believed to increase its prevalence, but no objective information is available on such possible environmental risk factors. The aims of the study were to document the prevalence of IC in UK horses, assess its distribution and severity between infundibulae and teeth in affected horses and examine for potential risk factors for its development...
August 3, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28756865/influence-of-remaining-coronal-tooth-structure-on-fracture-resistance-and-failure-mode-of-restored-endodontically-treated-maxillary-incisors
#19
Domingo Santos Pantaleón, Brian R Morrow, David R Cagna, Cornelis H Pameijer, Franklin Garcia-Godoy
STATEMENT OF PROBLEM: Limited information is available on the effect of an incomplete ferrule because of the varying residual axial wall heights and the volume of residual tooth structure on the fracture resistance of endodontically treated and restored maxillary incisors. PURPOSE: The purpose of this in vitro investigation was to examine the effect of varying residual axial wall heights, residual coronal tooth structure, and the absence of 1 proximal axial wall on the fracture resistance and failure mode of endodontically treated teeth restored with metal posts...
July 27, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28741325/continuous-pain-and-swelling-after-humerus-fracture-in-an-86-years-old-woman
#20
M Herrera-Pérez, J Boluda-Mengod, R Muñoz-Ortus, M J Gutiérrez-Morales, J Pais-Brito
Metastases to bone are the most frequent cause of destructive lesions to the skeleton in adults . The tumours that are most likely to metastasize to bone are prostate (32%), breast (22%), kidney (16%), lung and thyroid. The typical distribution of metastatic lesions are to the spine, ribs, pelvis, and proximal limb girdles. The humerus is the second most common site for long bone metastases, behind only the femur in its frequency of involvement . It represents the 20% of all bony metastases. We present a clinical case of an 86 yo woman with a previous diagnosis of myofibroblastic sarcoma of the maxillaris who suffers a pathological fracture of the humeral shaft secondary to metastasis and was misdiagnosed and treated for a typical humeral fracture using and intramedullary pinning (Hackethal technique), producing the progression of the disease within the humeral shaft...
January 2017: Acta Ortopédica Mexicana
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