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Mandibular fracture

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https://www.readbyqxmd.com/read/27900824/mandibular-angle-fractures-a-comparative-study-between-one-and-two-plate-fixation
#1
Marcelo Silva Monnazzi, Marisa Ap Cabrini Gabrielli, Mário Francisco Real Gabrielli, Alexandre Elias Trivellato
BACKGROUND/AIM: The mandibular angle fracture is a challenging fracture to manage. Over time, the literature has shown many types of treatment modalities and different kinds of internal fixation. The aim of this study was to evaluate the outcomes and complications of mandibular angle fractures managed by Champy's technique and two-plate fixation, over a period of 20 years. MATERIAL AND METHODS: The files of 149 patients with 155 angle fractures fulfilled the inclusion criteria and were chosen for this study...
November 7, 2016: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/27898160/haptic-feedback-improves-surgeons-user-experience-and-fracture-reduction-in-facial-trauma-simulation
#2
Sabine Girod, Sara C Schvartzman, Dyani Gaudilliere, Kenneth Salisbury, Rebeka Silva
Computer-assisted surgical (CAS) planning tools are available for craniofacial surgery, but are usually based on computer-aided design (CAD) tools that lack the ability to detect the collision of virtual objects (i.e., fractured bone segments). We developed a CAS system featuring a sense of touch (haptic) that enables surgeons to physically interact with individual, patient-specific anatomy and immerse in a three-dimensional virtual environment. In this study, we evaluated initial user experience with our novel system compared to an existing CAD system...
2016: Journal of Rehabilitation Research and Development
https://www.readbyqxmd.com/read/27886977/can-submandibular-tracheal-intubation-be-an-alternative-to-tracheotomy-during-surgery-for-major-maxillofacial-fractures
#3
Ahmed Gaber Hassanein, Ahmed M A Abdel Mabood
PURPOSE: During surgery for major maxillofacial fractures, orotracheal intubation can interfere with some surgical procedures and nasal intubation can be contraindicated or impossible. That is why tracheotomy is presented as a solution, although it carries a relatively high incidence of complications. In this study, the use of submandibular tracheal intubation is basically evaluated as an alternative to tracheotomy in such circumstances. MATERIALS AND METHODS: This prospective study was performed in patients undergoing surgery for major maxillofacial fractures in which oral intubation and/or nasal intubation have been unsuitable, impossible, or contraindicated...
November 2, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27884333/c-spine-injury-and-mandibular-fractures-lifesaver-broken-in-two-spots
#4
Michael W Chu, Tahereh Soleimani, Tyler A Evans, Sarah I Fernandez, Leigh Spera, Carrie Klene, Ben L Zarzaur, Sunil S Tholpady
BACKGROUND: Trauma is a leading cause of injury and mortality and may involve mandibular fractures and cervical spine injuries. Manipulation of the spine during trauma protocols and operative treatment has the potential to cause serious spinal cord injuries. The purpose of this study was to identify risk factors associated with cervical spine injury (CSI) in patients with mandibular fractures. METHODS: The National Trauma Databank (2007-2010) was used to identify patients with mandibular fractures...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27871481/impacts-of-contracted-endodontic-cavities-on-instrumentation-efficacy-and-biomechanical-responses-in-maxillary-molars
#5
Brent Moore, Konstantinos Verdelis, Anil Kishen, Thuan Dao, Shimon Friedman
INTRODUCTION: Recently, we reported that in mandibular molars contracted endodontic cavities (CECs) improved fracture strength compared with traditional endodontic cavities (TECs) but compromised instrumentation efficacy in distal canals. This study assessed the impacts of CECs on instrumentation efficacy and axial strain responses in maxillary molars. METHODS: Eighteen extracted intact maxillary molars were imaged with micro-computed tomographic imaging (12-μm voxel), assigned to CEC or TEC groups (n = 9/group), and accessed accordingly...
December 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27858080/-treatment-of-mandibular-angle-fracture-through-intraoral-and-extraoral-approach-a-comparative-study
#6
Bo-Jun Zhang, Wei-Hong Wang, Biao Xu
PURPOSE: To compare the clinical effects of mandibular angle fracture surgery through intraoral and extraoral approach. METHODS: From January 2008 to December 2014, 46 patients with mandibular angle fracture were retrospectively recruited in this study. An intraoral approach was used in 22 cases as group 1 in whom the fractures were fixed by one titanium miniplate alone, the others through an extraoral approach as group 2 in whom the fractures were fixed by two plates...
August 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/27857527/primary-hyperparathyroidism-jaw-tumor-syndrome-a-confusing-and-forgotten-diagnosis
#7
Doina Piciu, Andra Piciu, Elena Barbus, Claudiu Pestean, Maria Iulia Larg, Bogdan Fetica
BACKGROUND: Primary hyperparathyroidism is caused by the excessive growth of parathormone secretion, its consequence being hypercalcemia. The parathyroid adenoma is responsible for over half of primary hyperparathyroidism cases. The mandibular tumor can be the initial sign in the case of primary hyperparathyroidism. CASE PRESENTATION: We present the case of a 33 year old patient with history of a mandibular operated tumor, repetitive pathological fractures and hypercalcemia manifestations...
2016: Clujul Medical (1957)
https://www.readbyqxmd.com/read/27847733/post-traumatic-and-postoperative-neurosensory-deficits-of-the-inferior-alveolar-nerve-in-mandibular-fracture-a-prospective-study
#8
Sunil Yadav, Hitesh Chander Mittal, Sunita Malik, Vikas Dhupar, Akash Sachdeva, Vijaylaxmy Malhotra, Gurdarshan Singh
OBJECTIVES: We evaluated and recorded post-traumatic and postoperative neurosensory deficits of the inferior alveolar nerve (IAN) in mandibular fracture in order to identify associated risk factors. MATERIALS AND METHODS: This was a prospective cohort study composed of 60 patients treated for mandibular fracture. The primary study variable was the change between the post-traumatic IAN neurosensory examination score and the score after fracture reduction. Risk factors were categorized as demographic, anatomic, fracture displacement, and treatment...
October 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/27847136/evaluation-of-two-trephine-techniques-for-removal-of-fractured-rotary-nickel-titanium-instruments-from-root-canals
#9
Qian Yang, Ya Shen, Dingming Huang, Xuedong Zhou, Yuan Gao, Markus Haapasalo
INTRODUCTION: The aim of this in vitro study was to evaluate the effects on root dentin of 2 trephining techniques using an ultrasonic tip or a trepan bur in the mesial canals of mandibular molars during attempts to remove fractured file fragments using micro-computed tomographic imaging. METHODS: Twenty-one teeth with a similar anatomic configuration in mesial (buccal and lingual) canals were selected. A 4-mm apical segment of K3 file size 25/.06 was fractured in each mesiobuccal and mesiolingual canal 5 mm apically from the canal orifice...
November 12, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27833349/management-of-mandibular-angle-fractures-single-stainless-steel-linear-miniplate-versus-rectangular-grid-plate-a-prospective-randomised-study
#10
Sridhar Reddy Kanubaddy, Sathya Kumar Devireddy, Kishore Kumar Rayadurgam, Rajsekhar Gali, Mallikarjun Rao Dasari, Sivaganesh Pampana
PURPOSE: This prospective study was conducted to evaluate the efficacy of stainless steel single linear miniplate with rectangular grid plate in the treatment of mandibular angle fractures. METHODS: This study included 30 patients who were allocated randomly into two groups of each. Group 1 patients were treated with single 2 mm × 4 hole linear stainless steel miniplate and group 2 patients with 2 mm × 4 hole rectangular grid plate. Patients were evaluated for fracture stability, occlusion, mouth opening, and complications at 1st week, 1 and 3 months post operatively...
December 2016: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/27832968/fifteen-year-survival-of-anterior-all-ceramic-cantilever-resin-bonded-fixed-dental-prostheses
#11
Matthias Kern
PURPOSE: The aim of this follow-up study was to report the long-term outcome of all-ceramic cantilever resin-bonded fixed dental prostheses (RBFDPs). MATERIALS AND METHODS: In 16 patients (mean age of 33.3±17.5years) 22 RBFDPs made from a glass-infiltrated alumina ceramic (In-Ceram) were inserted with a phosphate monomer containing luting agent after air-abrasion of the retainer wings. The abutment preparation included a shallow groove on the cingulum and a small proximal box...
November 8, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27812671/oral-motor-and-electromyographic-characterization-of-patients-submitted-to-open-a-nd-closed-reductions-of-mandibular-condyle-fracture
#12
Amanda Pagliotto da Silva, Fernanda Chiarion Sassi, Claudia Regina Furquim de Andrade
Purpose: To characterize the oral-motor system of adults with mandibular condyle facture comparing the performance of individuals submitted to open reduction with internal fixation (ORIF) and closed reduction with mandibulomaxillary fixation (CRMMF). Methods: Study participants were 26 adults divided into three groups: G1 - eight individuals submitted to ORIF for correction of condyle fracture; G2 - nine individuals submitted to CRMMF for correction of condyle fracture; CG - nine healthy volunteers with no alterations of the orofacial myofunctional system...
September 2016: CoDAS
https://www.readbyqxmd.com/read/27810549/technical-modifications-for-intraoral-quadrangular-le-fort-ii-osteotomy
#13
Clemens Klug, Julia Cede
PURPOSE: The intraoral quadrangular Le Fort II osteotomy (IQLFIIO) represents a reliable surgical method in cases of midfacial deficiency with good functional, esthetic, and stable long-term results. PATIENTS AND METHODS: In this technical note, we present 3 surgical modifications to previous reports: 1) inferior orbital rim osteotomy by angulated piezosurgical instruments, thereby avoiding the use of chisels in the orbital region; 2) osteosynthetic fixation only laterally at the zygomatic buttress with 2 L-shaped miniplates, thus avoiding paranasal osteosynthesis; and 3) advancement step camouflage in the lateral infraorbital region with a compound mass of autologous bone chips and fibrin glue with the intention to reduce bone block-associated side effects...
October 6, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27805890/dental-treatment-needs-among-children-and-adolescents-residing-in-an-ugandan-orphanage
#14
Pessia Friedman Rubin, Ephraim Winocur, Assaf Erez, Ravit Birenboim-Wilensky, Benjamin Peretz
BACKGROUND: Previous studies focused on the dental caries status of East African children and not on their overall dental needs. Urban children consume more sugar-rich foods. OBJECTIVES: To assess overall dental treatment needs of children living in an orphanage in Uganda. STUDY DESIGN: Teeth were diagnosed as needing treatment by obvious frank carious lesions (WHO criteria), temporary fillings, staining, or very deep pit and/or fissures possibly requiring sealants...
2016: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/27800459/effectiveness-of-bicycle-safety-helmets-in-preventing-facial-injuries-in-road-accidents
#15
Rebecca Stier, Dietmar Otte, Christian Müller, Maximilian Petri, Ralph Gaulke, Christian Krettek, Stephan Brand
BACKGROUND: The effectiveness of bicycle safety helmets in preventing head injuries is well- documented. Recent studies differ regarding the effectiveness of bicycle helmets in preventing facial injuries, especially those of the mid-face and the mandible. OBJECTIVES: The present study was conducted to determine the protective effect of a bicycle helmet in preventing mid-face and mandibular fractures. PATIENTS AND METHODS: Data from an accident research unit were analyzed to collect technical collision details (relative collision speed, type of collision, collision partner, and use of a helmet) and clinical data (type of fracture)...
September 2016: Archives of Trauma Research
https://www.readbyqxmd.com/read/27795654/entrapped-foreign-body-a-diagnostic-muddle-for-the-radiologist
#16
Ajmal Mohamed, Beena Varma, Nidhin J Valappila, S Aravind Meena
Exact localization of foreign body is important for planning the treatment required for its retrieval without much tissue damage. Plain film radiography is the initial screening modality used for the detection of suspected foreign body. However, about one-third of all the foreign bodies are missed in the initial radiographic examination. In case of a wooden foreign body, only 15% are well-visualized on plain radiographs and are, therefore, often missed or misdiagnosed. Hence, the different radiographic technique should be used to localize the object instead of relying on a single radiographic image...
September 2016: Indian Journal of Dentistry
https://www.readbyqxmd.com/read/27776924/in-vitro-evaluation-of-the-resistance-of-three-types-of-fixation-to-treat-fractures-of-the-mandibular-angle
#17
D Maritza Contreras Gonzalez, G Spagnol, C Edvard Sverzut, A Elias Trivellato
The purpose of this study was to compare the mechanical resistance of three different plates used to treat fractures of the mandibular angle: a regular 4-hole plate, a longer 4-hole plate (both positioned using the Champy technique), and a 3-dimensional plate positioned over the oblique line. Three equal groups of replicas of human dentate mandibles made out of polyurethane resin were used (n=21 in each group). The force was applied perpendicular to the occlusal plane at a rate of 2mm/minute at three different points: the first molar on the sectioned side; the first molar on the contralateral side; and between the central incisors...
October 21, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27765333/influence-of-voxel-size-and-scan-field-of-view-on-fracture-like-artifacts-from-gutta-percha-obturated-endodontically-treated-teeth-on-cone-beam-computed-tomography-images
#18
Masahiro Iikubo, Takashi Nishioka, Shintaro Okura, Kaoru Kobayashi, Tsukasa Sano, Akitoshi Katsumata, Eiichiro Ariji, Ikuho Kojima, Maya Sakamoto, Takashi Sasano
OBJECTIVE: To determine the optimal scan settings (scan mode and position of field of view [FOV]) for cone beam computed tomography to reduce root fracture-like artifacts that are often observed in teeth filled with gutta-percha cones (GPCs). STUDY DESIGN: Fracture-like artifacts that appeared on cone beam computed tomography images of 9 extracted human mandibular premolars filled with GPCs were analyzed using I-mode (FOV, 102 mm; voxel size, 0.2 mm) and D-mode (FOV, 51 mm; voxel size, 0...
November 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27763984/relation-of-lower-last-molar-teeth-with-mandibular-fractures
#19
Mohammad Waheed El-Anwar, Hazem Saeed Amer, Ayman F Ahmed
OBJECTIVES: The objectives of this study were to study and investigate the relation between the state of the lower last molar teeth eruption and the site of the mandibular fractures. METHODS: Adult patients with traumatic mandibular fractures were included in this study. Panorama and computed tomography was performed for all patients. The relation between the state of the lower last molar eruption and criteria of the fracture was analyzed. RESULTS: In 106 patients who had 168 mandibular fractures, impacted lower third molar teeth were found to significantly increase the incidence of mandibular angle fracture while they had nonsignificant effect on incidence of other sites of mandibular fractures...
October 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27761894/a-novel-computer-algorithm-for-modeling-and-treating-mandibular-fractures-a-pilot-study
#20
Christopher J Rizzi, Timothy Ortlip, Jewel D Greywoode, Kavita T Vakharia, Kalpesh T Vakharia
OBJECTIVES/HYPOTHESIS: To describe a novel computer algorithm that can model mandibular fracture repair. To evaluate the algorithm as a tool to model mandibular fracture reduction and hardware selection. STUDY DESIGN: Retrospective pilot study combined with cross-sectional survey. METHODS: A computer algorithm utilizing Aquarius Net (TeraRecon, Inc, Foster City, CA) and Adobe Photoshop CS6 (Adobe Systems, Inc, San Jose, CA) was developed to model mandibular fracture repair...
October 20, 2016: Laryngoscope
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