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Mandibular 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
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
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
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
Akif Türer, Mustafa Cenk Durmuşlar, Ismail Şener, Ahmet Ferhat Misir, Mehmet Emin Önger
Mandibular fracture is the most common injury seen in facial fractures and plays an important role for oral and maxillofacial surgery department. The purpose of this study is to investigate the potential of the local administration of rosuvastatin (RSV) on mandibular fracture healing in rats. Thirty-two rats were divided into 4 groups: group C-14 (control), group R-14, group C-28 (control), and group R-28. A unilateral standard vertical osteotomy was performed right side of the mandibula extending from the tooth to the mandibular basis for each animal...
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
Charles E Anyanechi, Otasowie D Osunde, Birch D Saheeb
OBJECTIVE: To analyze cases of compound, unfavorable and non-comminuted mandibular angle fractures treated by trans-osseous wiring, presenting postoperative complications, in a low resource center. MATERIALS AND METHODS: This was a 13-year retrospective study of 1,324 fractures in 1,317 subjects. The predictor variables were age, gender, aetiology, time lag between injury and treatment, and concomitant mandibular and mid-facial fractures. The outcome variable was the development of complication(s) after treatment...
September 2016: Ghana Medical Journal
Paulo Domingos Ribeiro-Junior, Ricardo Alexandre Galdioli Senko, Gabriel Cury Batista Mendes, Fernando Gianzanti Peres
Facial nerve has great functional and aesthetic importance to the face, and damage to its structure can lead to major complications. This article reports a clinical case of neuroanastomosis of the facial nerve after facial trauma, describing surgical procedure and postoperative follow-up. A trauma patient with extensive injury cut in right mandibular body causing neurotmesis of the VIIth cranial nerve and mandibular angle fracture right side was treated. During surgical exploration, the nerve segments were identified and a neuroanastomosis was performed using nylon 10-0, after reduction and internal fixation of the mandibular fracture...
October 2016: Journal of Craniofacial Surgery
Thomas Mücke, Christian R Krestan, David A Mitchell, Jan S Kirschke, Arno Wutzl
For patients with malignant disease taking bisphosphonates and denosumab, the incidence of medication-related osteonecrosis of the jaw (MRONJ) is up to 15% in contrast to 0.01% in patients with osteoporosis. Clinical presentation of MRONJ extends from asymptomatic exposure of bone in 94% of patients to severe cases of mandibular fractures in a minority of 4.5%. The strongest risk factors for MRONJ are invasive dental procedures and dental infections. Advances in imaging provide more preoperation information compared with panoramic radiograph...
July 2016: Seminars in Musculoskeletal Radiology
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
Diego H Díaz, Julieta A Rodas, Clarisa E Bozzini, Patricia M Mandalunis, Natalia D Escudero
Bisphosphonates are the first choice therapy for the pharmaco logical treatment of osteoporosis. Following reports of cases of bisphosphonaterelated osteonecrosis of the jaw and atypical femur fracture, the safety of longterm use of bisphosphonates has been evaluated, resulting in the proposal of strontium as an alternative drug. No experimental study using a sequential administration design has been reported to date. Hence, the aim of this study was to evaluate the effect on bone tissue of ovariectomized rats of administration of alendronate followed by strontium ranelate...
September 2016: Acta Odontológica Latinoamericana: AOL
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
Keyong Yuan, Chenguang Niu, Qian Xie, Wenxin Jiang, Li Gao, Zhengwei Huang, Rui Ma
Minimally invasive endodontics emphasizes preservation of a maximal amount of healthy tooth tissue. However, whether the tooth structure preserved by minimally invasive endodontics can maintain higher fracture resistance is unclear. This study aimed to compare the biomechanics on teeth after minimally invasive (MI) preparation and straight-line (SL) preparation using finite element analysis. Six finite element analysis models of a mandibular first molar were constructed and divided into two groups (MI and SL)...
October 5, 2016: European Journal of Oral Sciences
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
Sabah Ali Beza, Sayed Attia, Edward Ellis, Layla Omara
AIM: The aim of the present study was to compare the extraoral and transbuccal approaches for the treatment of mandibular angle fractures with regard to postoperative complications. PATIENTS AND METHODS: An electronic search for relevant articles without language and date restrictions was performed in July 2016. Inclusion criteria were studies in humans including randomised controlled trials (RCTs), controlled clinical trials (CCTs), prospective studies (PS), and retrospective studies (RS)...
September 15, 2016: Open Access Macedonian Journal of Medical Sciences
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
W R Pires, J P Bonardi, L P Faverani, G A C Momesso, X M J P Muñoz, A F M Silva, S R Panzarini, A P F Bassi, D Ponzoni
Factors associated with the diagnosis, aetiology, and treatment of mandibular fractures occurring during the postoperative period following the removal of a lower third molar are discussed. The following databases were searched using specific key words: PubMed/MEDLINE, LILACS, Embase, and Scopus. The search yielded 124 cases. Sex, age, side, tooth position and angulation, bone impaction, relationship between the tooth and the inferior alveolar nerve, local pathological conditions, aetiology of the fracture, symptomatology, and time between surgery and fracture, as well as any displacement of the fracture and the treatment of the fracture, were evaluated...
September 26, 2016: International Journal of Oral and Maxillofacial Surgery
Tamer Tuzuner, Gorkem Yahyaoglu, Emre Tosun, Fatih Taskesen, Adem Kusgoz
The presented case evaluates the treatment of an alveolar fracture associated with mandibular immature lower permanent incisors. An 8-year-old girl was referred to our clinic 3 hours after the trauma. The clinical and radiographic examination of the alveoler bone showed a fracture, along with the mandibular fracture and significant segment mobility and dislocation of several immature mandibular permanent incisors. These were moving together to the lingual side because of the direct trauma associated with falling from the school wall...
October 2016: JPMA. the Journal of the Pakistan Medical Association
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