Read by QxMD icon Read

Mandible fractures

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
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
Arunesh Tiwari, Jeevan Lata, Madan Mishra
AIMS: This study was set out to evaluate the relationship between the presence and absence of unerupted mandibular third molar and fracture of mandibular angle/condyle, and to analyse if prophylactic removal of symptom-free unerupted mandibular third molar is beneficial. METHODS: Hundred patients of mandible fracture were selected randomly irrespective of age, sex, caste, creed and socio-economic status. Data were collected from the patients on the basis of history, clinical examination and radiographs for the following information: age, sex, aetiology of fracture, presence and status of the mandibular third molar and location of mandible fracture...
September 2016: Journal of Oral Biology and Craniofacial Research
Jianhua Wang, Yang Lu, Hong Xia, Qingshui Yin
PURPOSE: To investigate a unique procedure of joined transoral and retropharyngeal high cervical approach (JTRC) without mandibulectomy for treating upper cervical neoplasm involving both C2 and C3. METHOD: A 23-year-old male patient had neoplasma involving C2 and C3 that caused pathologic fracture of C2 and bony destruction of C3. The neoplasm excision and cervical spine reconstruction were performed through JTRC approach without splitting up the mandible. In this approach, there were two surgery windows that could be applied in turns by closing or opening the mouth to gain an ideal exposure...
October 18, 2016: European Spine Journal
Mustafa Sancar Ataç, Yeliz Kilinç
The bony augmentation of severely atrophied mandible is generally required for the purposes of prosthetic rehabilitations. The treatment strategies have been well defined in the literature ranging from osteotomy techniques to distraction osteogenesis. Visor osteotomy is the milestone of the reconstructive surgery for the atrophied mandible which has received some modifications. In the present study, the authors describe a new modification of visor osteotomy in which a complete coronal split osteotomy down to the inferior border at the mental region has been performed...
October 14, 2016: Journal of Craniofacial Surgery
Ritesh Kumar, Syed Saeed Ahmed, Gulam Sarwar Hashmi, Md Kalim Ansari, Sajjad Abdur Rahman
AIM: The present study was planned to investigate the etiology of injuries and to analyze correlation between clinical and radiological findings in cases of craniomaxillofacial trauma. STUDY DESIGN: An 18 months cross-sectional study was done and 325 patients with maxillofacial fractures were analyzed from January 2013 to June 2014 who reported to the department of oral and maxillofacial surgery, Aligarh, Uttar Pradesh. Data was recorded in a preformed case sheet which included: patient's demographic data, cause of injury, type of injury, treatment plan...
September 2016: Journal of Maxillofacial and Oral Surgery
Soung Min Kim, Emmanuel K Amponsah, Hui Young Kim, Ik Jae Kwon, Hoon Myoung, Jong Ho Lee
: Ameloblastoma is the most common benign odontogenic tumor of the jaw, and expansional growth of a huge untreated ameloblastoma can result in disturbances in facial aesthetics and function, such as difficulty with mouth opening, swallowing, chewing, breathing, neurologic deficits, and pathologic fractures. Radical wide resection with safety margins and subsequent reconstruction is generally recommended. A fibular free flap (FFF) is commonly used to reconstruct the mandible in order to adequately restore both aesthetic appearance and function...
September 2016: Ghana Medical Journal
Andrea E Geddes, Clay Cothren Burlew, Amy E Wagenaar, Walter L Biffl, Jeffrey L Johnson, Fredric M Pieracci, Eric M Campion, Ernest E Moore
BACKGROUND: We implemented expanded screening criteria for blunt cerebrovascular injuries (BCVIs) in an attempt to capture the remaining 20% of patients not historically identified with earlier protocols. We hypothesized that these expanded criteria would capture the additional 20% of BCVI patients not previously identified. METHODS: Screening criteria for BCVI were expanded in 2011 after identifying new injury patterns. The study population included 4 years prior (2007 to 2010; classic) and following (2011 to 2014; expanded) implementation of expanded criteria...
September 29, 2016: American Journal of Surgery
M Pedrazzoli, L Autelitano, F Biglioli
Mandibular fracture is usually the clinical end of bisphosphonate-related osteonecrosis of the jaw. This is a painful complication and patients cannot feed as usual, with a worsening of their quality of life. The goal of treatment in bisphosphonate related osteonecrosis of jaw (BRONJ) patients is to slow progression of bone necrosis. We present a novel technique for treatment of severe mandibular BRONJ in stage 3 patients that present with a high risk to develop fracture, since they have a residual unaffected mandibular bone height less than 6 mm...
August 2016: Acta Otorhinolaryngologica Italica
Jeffrey Y Tsai, Barry C Boyd, Ted C Ondracek, Etern S Park
We present a case of a parapharyngeal schwannoma of the mandibular nerve with intraosseous extension into the mandible. The initial symptoms included decreased auditory acuity, with subsequent magnetic resonance imaging findings suggestive of Eustachian tube obstruction. This represents a rare symptom of schwannomas of the mandibular nerve. Owing to the degree of bony expansion and cortical thinning of the adjacent mandibular ramus, concern existed for a pathologic fracture. Treatment involved complete excision of the lesion using hemimandibulectomy with second stage reconstruction...
September 15, 2016: Journal of Oral and Maxillofacial Surgery
Hayat Aynaou, Imane Skiker, Hanane Latrech
INTRODUCTION: Pycnodysostosis is a rare genetic disease characterized by osteosclerosis and bone fragility. The clinical aspects are varied including short stature, acro-osteolysis of distal phalanges, and dysplasia of the clavicles. Oral and maxillofacial manifestations of this disease are very clear. The head is usually large, a beaked nose, obtuse mandibular angle, and both maxilla and mandible are hypoplastic. Dental abnormalities are common. We report a case with the typical clinical and radiological characteristics of the Pycnodysostosis associated with a conductive hearing loss, an association rarely reported...
April 2016: Journal of Orthopaedic Case Reports
Júlio Cezar M A Mancini, Márcio Ricardo Taveira Garcia, Ilka Regina Souza de Oliveira, Ronaldo Rodrigues de Freitas, João Gualberto C Luz
PURPOSE: This study assessed the arterial blood supply to the mandible of edentulous patients treated for mandibular fractures using colour Doppler ultrasound. METHODS: The blood supply of edentulous patients surgically treated for mandibular fractures (group A) and edentulous fracture-free individuals (group B) was assessed. Only the fractured sides were evaluated in the first group (N = 17), whereas each side was evaluated in the second group (N = 20)...
October 1, 2016: Oral and Maxillofacial Surgery
S Vo Quang, J Dichamp, C Tomat, M P Vazquez, A Picard, N Kadlub
INTRODUCTION: Subcondylar fractures are common in children. Occlusion disorders resulting from these fractures in deciduous or mixed dentition do not have as much impact as in adults due to alveolar adaption possibilities. Functional treatment allows for good functional results, but does not treat the dynamic shortening of the ramus. The objective of this study was to evaluate the axiographic condylar slope changes after subcondylar fracture in children. MATERIALS AND METHODS: A prospective study was conducted from 2010 to 2015, including all the under-18 patients presenting with a subcondylar fracture...
September 28, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
Andreas Fuchs, Stefan Hartmann, Karen Ernestus, Grit Mutzbauer, Christian Linz, Roman C Brands, Alexander C Kübler, Urs D A Müller-Richter
BACKGROUND: Mandibular pseudocarcinomatous hyperplasia is a rare and generally benign pathology. We report on one of these rare cases. CASE PRESENTATION: The case history of a 73-year-old white man stated that he had a carcinoma of the oropharynx, which was primarily treated with radiotherapy and chemotherapy 4 years prior. As a result of radiotherapy he developed an osteoradionecrosis of his mandible and a consecutive pathological fracture of his left mandibular angle...
September 29, 2016: Journal of Medical Case Reports
Loai Hijazi, Wael Hejazi, Mhd Ayham Darwich, Khaldoun Darwich
PURPOSE: The purpose of the study was to evaluate the effect of clenching tasks on the stress and strain of condylar osteosynthesis screws and plates, as well as on the stress, strain distribution and displacement on the whole mandible and bone surrounding screws. METHODS: Three-dimensional finite element models of the mandible, two straight four-hole plates and eight screws were established. Six static clenching tasks were simulated in this study: incisal clench (INC), intercuspal position (ICP), right unilateral molar clench (RMOL), left unilateral molar clench (LMOL), right group function (RGF) and left group function (LGF)...
September 23, 2016: Oral and Maxillofacial Surgery
Ajit Joshi, Manu Goel, Ashutosh Thorat
PURPOSE: Iatrogenic fracture of mandible (IFM) associated with exodontia though rare, they do occur with an incidence ranging from 0.0034 to 0.0075 %. Most of the data is in the form of case reports or a small case series. This is an attempt to amass the data available in literature since the last 62 years. The purpose of this meta-analysis is to identify the etiologies and risk factors leading to IFM associated with exodontia and also the measures to minimize the complication. METHODS: Articles published between 1953 and 2015 were searched in Medline database...
September 23, 2016: Oral and Maxillofacial Surgery
Xiaona Jin, Hongli Jing, Yu Liu, Fang Li
A 14-year-old girl underwent a Tc MDP bone scan to evaluate multiple fractures. The images showed not only expected increased activity at the fracture sites of lower extremities but also intense activity in both sides of the maxilla and mandible. Microscopic examination of the mandible was consistent with a diagnosis of gigantiform cementoma.
November 2016: Clinical Nuclear Medicine
Valfrido Antonio Pereira-Filho, Luis Fernando de Gorla Oliveira, José Maurício Dos Santos Nunes Reis, Marisa Aparecida Cabrini Gabrielli, Rubens Spin Neto, Marcelo Silva Monnazzi
The aim of this study was to evaluate the mechanical behavior of different rigid fixation methods in mandible angle fractures. Three different plates were tested: one 4-hole grid miniplate, one 8-hole curved grid miniplate, and one 4-hole straight miniplate.For the loading tests, 30 polyurethane hemimandibles sectioned at the angle area to simulate a simple angle fracture were used: 10 hemimandibles for each group. The mechanical evaluation revealed that the straight plate positioned at the tension zone presented the best results in supporting vertical loading in the predefined displacement moments of 1, 3, and 5 mm...
October 2016: Journal of Craniofacial Surgery
Youn-Jung Kim, Shin Ahn, Dong-Woo Seo, Chang Hwan Sohn, Hyung-Joo Lee, In-June Park, Dong-Jin Yang, Seung Mok Ryoo, Won Young Kim, Kyung Soo Lim
OBJECTIVES: This study aimed to determine orbital wall fracture (OWF) patterns and associated facial injuries in elderly patients and compare them with those in their younger adult counterparts. DESIGN: A retrospective case-control study. SETTING: An emergency department of a university-affiliated hospital located in an urban area. PARTICIPANTS: A total of 1378 adult patients with OWF diagnosed by CT from 1 January 2004 through 31 March 2014 were enrolled...
September 19, 2016: BMJ Open
David Dreizin, Arthur J Nam, Nikki Tirada, Martin D Levin, Deborah M Stein, Uttam K Bodanapally, Stuart E Mirvis, Felipe Munera
After the nasal bones, the mandible is the second most common site of facial fractures, and mandibular fractures frequently require open reduction. In the trauma injury setting, multidetector computed tomography (CT) has become the cornerstone imaging modality for determining the most appropriate treatment management, fixation method, and surgical approach. Multidetector CT is also used to assess the adequacy of the reduction and evaluate potential complications in the postoperative period. For successful restoration of the mandible's form and function, as well as management of posttraumatic and postoperative complications, reconstructive surgeons are required to have a detailed understanding of mandibular biomechanics, occlusion, and anatomy...
September 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"