Epidemiological Study of Frontal Sinus Fractures: Evaluation of 16 Years of Care at the Faculty of Dentistry of Ribeirão Preto/Brazil.

Purpose: Aiming to evaluate and study the epidemiological profile of frontal sinus fractures treated in the region of Ribeirão Preto-Brazil. Methods: Sixteen years of activity in the Oral and Maxillofacial service of the Faculty of Dentistry of Ribeirão Preto/SP (FORP/USP), totaling 9,736 consultations, 4,524 with facial fractures, those diagnosed with frontal sinus fracture (113) were evaluated and selected for the study. Results: Frontal sinus fractures accounted for 2.5% of facial fractures, the majority occurring in men (89.4%), concentrated in the age group 21-30 years old, with 52.2% of cases being caused by road traffic accidents (RTA). Associations with other facial fractures are common and appeared in 75.2% of cases. Treatment was followed either surgically, by open reduction internal fixation (52.2%) or conservatively (35.4%). Analyzing only the 28 isolated frontal sinus fractures, the most common treatment was conservative (46.4%). surgical treatment dropped to 25%. The most common postoperative complications were temporal branch paralysis and supraorbital nerve paresthesia, both occurring in 30.5% of surgical cases. Conclusion: The frequency of frontal sinus fractures may be decreasing, but the pattern of occurrence in young men due to road traffic accidents does not seem to change, fortunately the appearance of serious complications is not common and it is usually associated with more severe trauma.

Manejo neuroquirúrgico de absceso epidural post traumatismo craneoencefálico: a propósito de un caso / Neurosurgical management of epidural abscess after traumatic brain injury: a case report

RESUMEN El traumatismo craneoencefálico es un evento ocasionado por la fuerza sobre el continente que guarda al contenido cerebral, que hace que la inercia ocasione lesiones por aceleración y desaceleración produciendo hemorragias y/o fracturas Estas pueden generar una serie de complicaciones como el absceso epidural que al estar muy cerca al cerebro constituye una emergencia, siendo complejo su manejo y seguimiento. En esta oportunidad mostramos el caso de un paciente con absceso epidural ocasionado por traumatismo craneoencefálico y manejo neuroquirúrgico, con buena evolución clínica.

ABSTRACT Cranioencephalic trauma is an event caused by force on the container that holds the brain content, which causes inertia to cause acceleration and deceleration injuries, producing hemorrhages and/or fractures; These can generate a series of complications such as epidural abscess which, being very close to the brain, constitutes an emergency for its management and follow-up15. On this occasion we show the case of a patient with epidural abscess caused by cranioencephalic trauma and neurosurgical management.

Growing skull fracture in a child with Ehlers-Danlos syndrome: case report and literature review.

INTRODUCTION: Growing skull fracture (GSF) is a rare complication of head trauma in the pediatric population, commonly observed in children younger than 3 years. DISCUSSION: In this report, the authors describe a case of a 3-year-old male child, with clinical features of Ehlers-Danlos syndrome (EDS), who developed a GSF in frontal bone after a crib fall, treated with duraplasty and cranioplasty with autologous craft. Here, pertinent literature was reviewed with an emphasis on surgical techniques, and correlation with the mentioned syndrome. CONCLUSION: This is the first case of GSF in association with EDS in the literature. The relevance of the case described concerns the rarity of the condition itself, the atypical presentation, and the intraoperative findings, which showed the important fragility of the dura mater, probably due to EDS. Therefore, this syndrome, besides having influenced the pathogenesis, was also a challenging factor in the surgical treatment.

Cranioplastia frontal com enxerto de parede anterior de seio frontal e retalho pericrânio têmporo-parietal: relato de caso / Frontal cranioplasty with bone graft from the anterior wall of the frontal sinus and temporo-parietal pericranium flap: case report

O osso frontal integrante do esqueleto craniano e que integra o terço superior da face, tem papel importante na proteção do conteúdo encefálico. Fazendo parte dessa referência, encontra-se uma cavidade sinusal de dimensões variáveis, o seio frontal. A localização anatômica do seio frontal permite que ele contribua para proteção do lobo frontal agindo como barreira absorvedora de choque, além da fisiologia sinusal. As fraturas craniofaciais podem afetar a parede anterior e/ou posterior, com ou sem envolvimento do ducto nasofrontal (DNF). O planejamento do tratamento é baseado na relação clínico-imaginológica. A tomografia computadorizada (TC) tem grande importância no processo decisório do planejamento. O tratamento pode ser do tipo não cirúrgico, quando há patência dos DNF e comprometimento estético não crítico para o paciente, ou cirúrgico quando há comprometimento dos DNF e/ou comprometimento estético crítico, ou ainda quando há envolvimento da parede posterior e necessidade de cranialização e obliteração ductal. O objetivo deste artigo é relatar uma cranioplastia secundária à sequela de fratura fronto-orbitária, com emprego de fragmentos osteotomizados do próprio sítio de fratura, fixados com miniplacas do Sistema 1.5mm e ainda o emprego de retalho de pericrânio têmporo-parietal para camuflagem de tecido mole por preenchimento.

The frontal bone, part of the cranial skeleton and part of the upper third of the face has an essential role in protecting brain content. As part of this reference, there is a sinus cavity of variable dimensions, the frontal sinus. The anatomical location of the frontal sinus allows it to contribute to frontal lobe protection by acting as a shock-absorbing barrier in addition to sinus physiology. Craniofacial fractures can compromise the anterior and(or) posterior wall, with or without the involvement of the nasofrontal duct (NFD). Treatment planning is based on clinical and imaging evaluation. Computed tomography (CT) is essential for planning and decision-making process. The treatment can be non-surgical, when there is patency of the FND and aesthetic impairment that is not critical for the patient, or surgical when there is impairment of the FND and/or critical aesthetic impairment, or even when there is involvement of the posterior wall and the need for cranialization and ductal obliteration. The objective of this article is to report a cranioplasty secondary to the sequelae of a frontal-orbital fracture, using osteotomized fragments from the fracture site itself, fixed with miniplates (1.5mm System), and the use of a temporoparietal pericranium flap to camouflage tissue soft for filling.

Hemi Le Fort III Fracture with Subdural and Subarachnoid Pneumocephalus with a Mild Mount Fuji Sign

ABSTRACT: Extensive fractures in the fixed facial skeleton combined with traumatic brain injury can cause functional and esthetic impairments, possibly threatening the patient's life. Male patient, 50-year-old, victim of physical aggression, presented with persistent headache and dizziness, fractures in the naso-orbito-ethmoidal, zygomatic-maxillary and right pterygoid process regions, among other minor patterns of facial fracture, with mobility to maxillary traction of the third midface unilaterally. Clinical-imaging findings revealed a Hemi Le Fort III fracture and subdural and subarachnoid pneumocephalus with a mild Mount Fuji Sign. The proposed treatment was facial osteosynthesis and conservative intravenous drug treatment of the pneumocephalus. The patient had a good recovery, with no postoperative motor or functional deficits. The correct management of the patient with facial trauma associated with craniotrauma offers benefits, restoring stability of facial architecture and preventing or correcting neurosurgical complications.

RESUMEN: Las fracturas extensas en el esqueleto facial combinadas con una lesión cerebral traumática pueden causar deficiencias funcionales y estéticas, que posiblemente pongan en peligro la vida del paciente. Paciente de sexo masculino, 50 años, víctima de agresión física, que presentó cefalea persistente y mareos, fracturas en las regiones naso-orbito-etmoidal, cigomático-maxilar y pterigoides derecha, entre otros patrones menores de fractura facial, con movilidad a tracción maxilar del tercio medio facial unilateralmente. Los hallazgos de las imágenes clínicas revelaron una hemifractura de Le Fort III y neumocefalia subdural y subaracnoidea con un leve signo del Monte Fuji. El tratamiento propuesto fue la osteosíntesis facial y el tratamiento farmacológico intravenoso conservador de la neumocefalia. El paciente tuvo una buena recuperación, sin déficit motor ni funcionales postoperatorios. El manejo adecuado del paciente con trauma facial asociado a craneotrauma ofrece beneficios, devolviendo la estabilidad de la arquitectura facial y previniendo o complicaciones neuroquirúrgicas.

Use of Vacuum-suction in Depressed Skull Fractures ­ Case Report and Technical Nuances of Nonoperative Treatment

Up to 20% of victims from skull fractures are represented by the pediatric population, and 50% of these lesions are depressed skull fractures. The treatment is multimodal in nature, ranging from conservative treatment to open surgical repair. The last one is associated, although in a small proportion, to complications, such as infections, hematomas and even death, besides the risks of the anesthetic procedure itself. The authors of the present article present a case report of the successful treatment of a depressed skull fracture in a newborn patient, using the vacuum-suction technique. The use of vacuum-suction may be beneficial for the pediatric patients, as it is a quick, non-invasive procedure, without the need for general anesthesia.

Enfoque terapéutico para la fractura atípica de Le Fort I / Therapeutic approach to atypical Le Fort I fracture

ABSTRACT Objective: Describe the clinical management of an atypical Le Fort I fracture case. Case presentation: A 33-year-old patient was brought to the Surgical and Maxillofacial Traumatology Service of Humberto Lucena Senatorial Emergency and Trauma Hospital in Joao Pessoa (PB), Brazil, after undergoing physical aggression. The patient was conscious and lucid. Clinical examination revealed sinking of the middle third of the face with edema and bilateral periorbital ecchymosis. Visual acuity and ocular motricity were preserved in both eyes. A cut-contusion injury on the upper lip, maxillary mobility when handled and discrete occlusal dystopia were also observed. Imaging examination identified a high bilateral Le Fort I fracture. The therapeutic approach chosen was fracture reduction and fixation with plates and screws. After a period of two months, the patient is healing well without any apparent functional or aesthetic alteration. Conclusions: Atypical Le Fort I fractures are not frequent; however, a number of etiologies besides the impact force may bring about them. Treatment should be based on the one for classical Le Fort I fractures with adjustments to the surgical access approach(AU)

RESUMEN Objetivo: Describir los manejos clínicos realizados en una víctima de fractura de Le Fort I atípica. Reporte de caso: Un hombre de 33 años fue llevado al Servicio de Traumatología Quirúrgica y Maxilofacial del Hospital de Trauma y Emergencias Senatorial Humberto Lucena - Joao Pessoa (PB), Brasil, víctima de agresión física. El paciente estaba consciente y lúcido. Clínicamente, se observó hundimiento del tercio medio de su cara con edema y equimosis periorbital bilateral. La agudeza visual y la motricidad ocular se conservaron en ambos ojos. También se observaron herida constuso-cortante en el labio superior, movilidad maxilar cuando se manipula y discreta distopia oclusal. El examen de imagen identificó una fractura bilateral alta de Le Fort I. El enfoque terapéutico elegido fue la reducción de la fractura y la fijación con placas y tornillos. Después de un período de 2 meses, el paciente está evolucionando bien sin aparentes alteraciones funcionales o estéticas. Conclusiones: las fracturas atípicas de Le Fort I no son frecuentes, sin embargo, diferentes etiologías añadidas a la fuerza de impacto pueden justificarlas. El tratamiento debe basarse en las fracturas clásicas de Le Fort I con ajustes en el abordaje de acceso quirúrgico(AU)

Polymethylmethacrylate imbedded with antibiotics cranioplasty: An infection solution for moderate and large defects reconstruction?

BACKGROUND: In cases where autologous bone graft reconstruction is not possible (such as comminuted fractures, bone graft reabsorption, or infection) and the use of synthetic material is required, polymethylmethacrylate (PMMA) use is a safe and efficient solution. Studies comparing the incidence of postoperative complications between autologous and synthetic cranioplasty are heterogeneous, not allowing a conclusion of which is the best material for skull defects reconstruction. Current medical literature lacks prospective well-delineated studies with long-term follow-up that analyze the impact of antibiotic use in PMMA cranial reconstruction of moderate and large defects. METHODS: A prospective series of patients, who underwent cranioplasty reconstruction with PMMA impregnated with antibiotic, were followed for 2 years. Authors collected data regarding demographic status, clinical conditions, surgical information, and its complications. RESULTS: A total of 58 patients completed full follow-up with a mean group age of 40 years and a male predominance (77%). Major complications that required surgical management were identified in 5 patients, and 10 patients evolved with minor complications. Postoperative surgical site infection incidence was 3.2%. CONCLUSION: The infection rate in patients submitted to PMMA flap cranioplasty impregnated with antibiotic is significantly inferior comparing to the data described in medical literature. A lower infection incidence impacts secondary endpoints such as minimizing surgical morbidity, mortality, hospitalization period, and, consequently, costs.

A Wormian Bone, Mimicking an Entry Gunshot Wound of the Skull, in an Anthropological Specimen.

Wormian bones (WB) are irregular small cranial ossicles found along suture lines and fontanels. In Brazil, gunshot wounds to the skull are quite common in young individuals. Nevertheless, as far as we know, this is the first report of a WB giving an erroneous aspect of gunshot entrance due to its displacement position. The present manuscript describes the case of a Brazilian young man who died due to ballistic trauma, where a gaping bony defect on the right side of the skull was thought to be the exit wound of an injury related to the destruction found on the left side, highly suggestive of firearm injury. Thus, this case study has brought to light similarities between a traumatic lesion and an orifice of a WB, with emphasis on differential diagnosis during routine anthropological examinations.

Profile of Hospitalizations and Deaths from Craniofacial Fractures in Brazilian Children and Adolescents: An Ecological Study

Objective: To characterize the profile of hospitalizations and deaths related to craniofacial fractures in Brazilian children and adolescents. Material and Methods: This is an ecological cross-sectional study with inductive approach with comparative-descriptive procedure and indirect documentation technique. Data were obtained from the DATASUS / SIH-SUS website for the years 2010-2014, considering information for each state of the five Brazilian regions. Admission rates were calculated per 100,000 inhabitants, and data were analyzed by population rates, averages and absolute and relative frequencies. Results: The Northeastern region of Brazil showed the highest hospitalization rate (81.72), followed by the Northern (56.84), Southern (50.94), Midwestern (44.25) and Southeastern regions (30.28). In all regions, the years with the highest hospitalization rates were: 2010 for the Northern (13.17) and Southeastern regions (6.61), 2013 for the Northeastern (20.07) and Midwestern regions (10.17) and 2014 for the Southerner region (10.52). The highest hospitalization rates in all regions of the country in the last five years were observed for male children and adolescent. In relation to age group, higher rates were recorded from 15 to 19 years. Of the total of 27,244 hospitalizations (3.8%), 1028 patients died and 35.5% of them occurred in the Northeastern region. Considering the years under study, the average length of stay and average daily hospitalization cost were respectively 4.0 days and US$ 82.7. Conclusion: The Northeast region of Brazil had the highest hospitalization rate of children and adolescents by craniofacial fractures, and male adolescents and those aged 15-19 years were the most affected in different regions of the country. Costs of hospital admissions due to this type of injury are significant, with more deaths as a result of these injuries in Brazil in the last 5 years evaluated with the highest prevalence in the Northeastern region of Brazil.

Fratura evolutiva de crânio na infância ? Relato de cinco casos e revisão de literatura / Growing skull fracture of childhood ? Report of five cases and literature review

A fratura evolutiva é uma rara complicação que se observa geralmente na infância. Caracteriza-se por afastamento progressivo das bordas das fraturas, às vezes associado à formação de um cisto leptomeníngeo, também conhecido como cisto leptomeníngeo pós-traumático. De acordo com a literatura internacional, sua prevalência varia entre 0,03% e 1,6%. Analisamos a casuística de pacientes internados com traumatismo cranioencefálico no Hospital da Restauração de Recife (Brasil), um centro de referência em neurocirurgia pediátrica, no período de 1° de dezembro de 2000 a 30 de abril de 2008. O grupo de estudo compreendeu crianças de 0 a 14 anos. Durante essa investigação foram realizadas 19.758 admissões na emergência pediátrica por traumatismo cranioencefálico, e 74% foram admitidos da área metropolitana e 26% do interior do estado de Pernambuco. Foi observada fratura craniana em 6,3% dos casos, dos quais cinco crianças (menores de 3 anos) desenvolveram fratura evolutiva, representando 0,4% das fraturas de crânio e 0,02% dos traumatismos cranioencefálicos admitidos. Foi achada em todos os casos uma massa pulsátil, que apareceu em média no quarto mês após o trauma. As cinco crianças foram submetidas a tratamento cirúrgico, que compreendeu a ressecção do cisto leptomeníngeo e do tecido cerebral herniado, reparo do defeito dural e cranioplastia. A nossa experiência e a revisão bibliográfica mostram que crianças menores de 3 anos com história de traumatismo cranioencefálico e fratura de crânio apresentam risco de desenvolver fratura evolutiva. No entanto, sendo uma condição rara crianças com fratura de crânio menores de 3 anos, é obrigatório o acompanhamento clínico. Quando diagnosticado, o tratamento cirúrgico imediato é indicado para prevenir déficit neurológico.

Growing fracture is a rare complication that usually is observed in childhood. It is characterized by a progressive opening from the edges of fractures, sometimes associated with the formation of leptomeningeal cyst, also known as post-traumatic leptomeningeal cyst. According to the literature, its prevalence ranges from 0.03% to 1.6%. We analyzed a casuistic of patients hospitalized with head trauma at the Hospital da Restauração of Recife (Brazil), a referral center for pediatric neurosurgery, in the period from December 1st 2000 to April 30th, 2008. The study group consisted of children aged 0 to 14 years. During this research, were analyzed 19,758 emergency admissions for pediatric traumatic brain injury, which 74% were admitted to the metropolitan area and 26% were from the countryside, in the state of Pernambuco. Skull fracture was observed in 6.3% of cases, including 5 children under 3 years old, who developed growing fracture, constituting 0.4% of skull fractures and 0.02% of traumatic brain injury admitted. In all cases, it was found a pulsating mass that appeared in an average time in the 4th month after the trauma. The five children were submitted to surgical resection of the leptomeningeal cyst and of the herniated brain tissue, repair of dural defect and cranioplasty. Our experience and review of the literature show that children under 3 years old, with a history of traumatic brain injury and skull fracture, present at risk of developing a growing fracture. Even though, it is a rare condition, a clinical follow-up is mandatory for these children. When the growing fracture is diagnosed, an immediate surgical treatment is indicated to prevent neurologic deficit.

Perfil das Internações de Crianças eAdolescentes com Fraturas do Crânio e Ossos da Face na Região Nordeste do Brasil / Profile of Hospitalization of Children and Adolescents with Fractures of the Skull and Facial Bones in Northeastern Brazil

Analisar o perfil das internações de crianças eadolescentes com fraturas do crânio e ossos da face naregião Nordeste, Brasil, no período de 2008 a 2010. Materiale Métodos: Utilizou-se uma abordagem indutiva comprocedimento comparativo-descritivo e técnica dedocumentação indireta. Os dados foram obtidos medianteconsulta aos sítios do DATASUS para os anos de 2008 a2010, nas faixas etárias de 0 a 19 anos, considerando asinformações disponíveis para cada estado da regiãonordeste, sendo analisados descritivamente por meio defrequências absolutas e percentuais. Resultados: No anode 2008, obteve-se um valor total de 1.418 notificações, commaior prevalência do gênero masculino (77,36%) e faixaetária mais acometida a de 15 a 19 anos, sendo a Bahia oestado com número mais expressivo de internações (n=274;17,42%). No ano de 2010, foram registradas 1.352internações, evidenciando-se maior envolvimento do gêneromasculino (79,66%) e da faixa etária de 15 a 19 anos,constatando-se que o Ceará apresentou valores maiselevados de internação (n=301; 22,26%). Conclusão: Houveuma maior ocorrência de fraturas em indivíduos do sexomasculino e a faixa etária mais acometida foi a de 15 a 19anos. Os estados da Bahia e do Ceará apresentaram o maiornúmero de internações, já os estados de Sergipe e doMaranhão foram os menos acometidos no período estudado...

To analyze the profile of hospitalization of childrenand adolescents with fractures of the skull and facial bonesin the Northeastern Brazil from 2008 to 2010. Material andMethods: We used an inductive approach with descriptivestatisticalprocedure and technique of indirect documentation.Data were obtained by consulting the DATASUS websitesfor the years 2008 to 2010, in the age group 0-19 years.Results: In 2008, we obtained a total of 1,418 notifications,with higher prevalence in males (77.36%); the most affectedage group was 15-19 years, and the state of Bahia had themost significant number of hospitalizations (n = 274; 17.42%).In 2010, there were 1,352 admissions, with greaterinvolvement of males (79.66%) aged 15 to 19 years, and thestate of Ceará showed significantly higher hospitalizationrates (n = 301, 22.26%). Conclusion: There was a higherincidence of fractures in males and the most affected agegroup was 15-19 years. The states of Bahia and Ceará hadthe largest number of admissions and the states of Maranhãoand Sergipe were the least affected in the studied period...

Comportamiento de las fracturas maxilofaciales atendidas en el Hospital Universitario de Maabar, República de Yemen / Behavior of the maxillofacial fractures in the Maabar's University Hospital, Yemen Republic

Introducción: las fracturas maxilofaciales constituyen más del 50 porciento del total de fracturas, y en muchas ocasiones están asociadas a otras fracturas del cuerpo humano. Objetivos: estudiar el comportamiento de estas lesiones en el Hospital Universitario de Maabar, de la Universidad de Thamar (Yemen), determinar su relación con la edad, sexo, etiología y localización, y compararlo con los resultados de otros estudios realizados en Cuba y en otros países. Métodos: se realizó un estudio estadístico descriptivo retrospectivo de las fracturas maxilofaciales atendidas por la brigada de profesores cubanos en este hospital entre los años 2006 y 2009. Las variables estudiadas fueron: sexo, edad, causa de la fractura y región afectada, así como el tipo de fractura y los traumatismos asociados. Resultados: el sexo masculino fue mucho más afectado que el femenino. Los accidentes del tránsito fueron la causa más común (más del 50 por ciento de los casos). La fractura nasal fue la más frecuente, y en más de 150 casos se detectaron traumatismos asociados, muchos muy graves, como fracturas de cráneo, de miembros y heridas de partes blandas. Conclusiones: se confirman los resultados que el sexo masculino es el más afectado, y que los accidentes del tránsito son la principal causa de fracturas en la cara. La fractura nasal es la más frecuente de todas las de los huesos faciales (más del 50 por ciento de los casos), pero otros registran la mandíbula o la región zigomática como la zona más frecuente. Impresionaron las fracturas mandibulares en niños, lo cual no es frecuente en Cuba(AU)

Introduction: the maxillofacial fractures account for more than the 50 percent of the total of fractures and often are associated with other fractures of the human body. Objectives: to study the behavior of these lesions in patients from the Maabar's University Hospital of the Thamar's University (Yemen), to determine its relation to age, sex, etiology and location and to compare it with the results of other studies conducted in Cuba and other countries. Methods: a retrospective, descriptive and statistic study was conducted on the maxillofacial fractures seen by the Cuban professor brigade in this hospital between 2006 and 2009. The study variables were: sex, age, cause of the fracture and involved region, as well as the type of fracture and associated traumata. Results: the male sex was more involved that the female one. The road accidents were the commonest cause (more than the 50 percent of cases). The nose fracture was the more frequent and in more than of 150 cases there were associated traumata much of them very severe including skull fracture, of extremities and soft tissue wounds. Conclusions: the results confirm that the male sex is the more involved one and that the road accidents are the leading cause of face fractures. The nose fracture is the more frequent of all that of facial bones (more than 50 percent of cases), but others register the mandible or the zygomatic region as the more frequent involved zone. The mandibular fractures were impressive in children, something not frequent in Cuba(AU)

Incidencia de fracturas maxilofaciales en el municipio Artemisa / Incidence of jaw fractures in the municipality of Artemisa / Incidence des fractures maxillo-faciales à Artemisa

Se realiza un estudio sobre la incidencia de las fracturas maxilofaciales tratadas en el Servicio de Cirugía Maxilofacial de Artemisa, entre los años 1994-97. Del total de 167 casos tratados el 62,3 % correspondió al sexo masculino y el 37,7 % al femenino. Las causas más frecuentes fueron los accidentes del tránsito, las caídas, las riñas y los accidentes deportivos y del trabajo. Al igual que en la mayoría de los estudios la fractura nasal fue la más frecuente, siguiéndole en orden las maxilomolares, las dentoalveolares y las mandibulares.

A study on the incidence of jaw fractures treated at the Service of Maxillofacial Surgery, in Artemisa, from 1994 to 1997, was conducted. Of the 167 cases that received treatment 62.3 % were males and 37.7 % females. The most frequent causes were traffic accidents, falls, quarrels, and sports and working accidents. As in most of the studies, nasal fracture was the most frequent, followed by maxillomolar, dento-alveolar and jaw fractures.

Une étude su l´incidence des fractures maxillo-faciales traitées au Service de Chirurgie maxillo-faciale d´Artemisa a été réalisée entre 1994 et 1997. Du total de 167 cas traités, 62,3 % correspond au sexe masculin et 37,7 % au sexe féminin. Les causes les plus fréquentes ont été les accidents du trafit, les chutes, les bagarres et les accidents de sport et de travail. La fracture du nez a été la plus fréquente, de même que la plupart des études, puis les fractures maxillo-molaires, les dento-alvéolaires et les mandibilaires.