Barotrauma y barodontalgia en la aviación / Barotrauma and barodontalgia in Aviation / Barotrauma e barodontalgia na aviação

Introducción: se ha estudiado ampliamente la importancia de los cambios de presión y sus consecuencias en el cuerpo humano. De esto se desprenden dos conceptos importantes: el barotrauma que se define como el daño producido por cambios en la presión atmosférica; y la barodontalgia que se define como el dolor dentario producido por variaciones de presión barométrica, por ejemplo cuando existen gases atrapados en restauraciones o en la cámara pulpar y/o conducto radicular. Estos conceptos se fundamentan en las leyes de los gases: la Ley de Difusión Gaseosa, la Ley de Dalton, la Ley de Boyle, la Ley de Charles y la Ley de Henry. Discusión: el estudio y prevención de la barodontalgia es de suma importancia, ya que aunque no tiene alta prevalencia entre los aviadores, su aparición es súbita y de alta intensidad, lo que puede provocar en el piloto una incapacidad física y mental, que aumenta el riesgo de accidentes. Conclusiones: en esta revisión, se reúnen las estrategias recomendadas para prevenir su aparición.

Introduction: the importance of pressure changes and their consequences on the human body has been widely studied. Two important concepts arise from this: barotrauma, which is defined as the damage produced by changes in atmospheric pressure; and barodontalgia, which is defined as dental pain produced by variations in barometric pressure, for example when gases are trapped in restorations or in the pulp chamber and/or root canal. These concepts are based on the gas laws: the Law of Gaseous Diffusion, Dalton's Law, Boyle's Law, Charles' Law and Henry's Law. Discusion: the study and prevention of barodontalgia is of utmost importance, since although it is not highly prevalent among aviators, its onset is sudden and of high intensity, which can cause physical and mental incapacity in the pilot, increasing the risk of accidents. Conclusions: this review brings together the recommended strategies to prevent its occurrence.

Introducão: a importância das mudanças de pressão e suas conseqüências sobre o corpo humano têm sido amplamente estudadas. Dois conceitos importantes podem ser derivados disto: barotrauma, que é definido como o dano produzido por mudanças na pressão atmosférica; e barodontalgia, que é definida como a dor dental produzida por variações na pressão barométrica, por exemplo, quando os gases estão presos em restaurações ou na câmara de polpa e/ou canal radicular. Estes conceitos são baseados nas leis do gás: a Lei de Difusão Gasosa, a Lei de Dalton, a Lei de Boyle, a Lei de Charles e a Lei de Henry. Discusion: o estudo e prevenção da barodontia é de suma importância, pois embora não seja muito prevalente entre os aviadores, seu início é repentino e de alta intensidade, o que pode causar incapacidade física e mental no piloto, aumentando o risco de acidentes. Conclusões: esta revisão reúne as estratégias recomendadas para evitar sua ocorrência.

Diagnóstico y tratamiento de la sinusitis maxilar odontogénica / Diagnosis and treatment of odontogenic maxillary sinusitis

RESUMEN Introducción: La patología sinusal inflamatoria e infecciosa puede comprometer la mucosa sinusal maxilar, etmoidal, esfenoidal o frontal, y su etiología es variada. Se ha observado que la patología odontológica es uno de los factores causales de la sinusitis maxilar, con una incidencia del 10% al 40% según diversas series de casos. El diagnóstico y tratamiento se debe realizar de manera interdisciplinaria entre las especialidades de otorrinolaringología y de cirugía maxilofacial. Se elaboró un documento descriptivo sobre la sinusitis odontogénica y orientador sobre su manejo, de acuerdo a una revisión de la literatura. Se realizaron búsquedas en las bases de datos PubMed, Lilacs y Google Académico, utilizando términos relevantes para la sinusitis odontogénica, con el fin de elaborar el documento. Se utilizaron 43 artículos, todos publicados desde el año 1986 hasta la fecha. Se concluye que la sinusitis odontogénica difiere tanto en la clínica como en la microbiología de otras enfermedades sinusales. El tratamiento se basa en el trabajo interdisciplinario e incluye cirugía endoscópica funcional, realizada por el otorrinolaringólogo, en conjunto con el tratamiento odontológico, siendo fundamental la buena comunicación entre ambos equipos.

ABSTRACT Introduction: Infectious and inflammatory sinus diseases have a varied etiology and can be associated to the maxillary, ethmoidal, sphenoidal and frontal sinuses. Dental pathology can be one of the etiological factors associated to maxillary sinus disease, with frequency rates of 10-40%. Diagnosis and treatment require interdisciplinary work, with participation of otorhinolaryngology and oral and maxillofacial surgery. The development of a descriptive document on odontogenic sinusitis and management guidelines according to literature review. Pubmed, Lilacs and Google Academic database were searched using terms relevant to odontogenic sinusitis, in order to prepare the document. 43 articles were used, all published from 1986 onwards. We conclude that odontogenic sinusitis differs clinically and microbiologically from other sinus pathologies. Treatment modalities are based upon interdisciplinary surgery, including functional endoscopic surgery done by otolaryngologists and dental treatment, being fundamental close communication between the two teams.

Rinosinusitis maxilar crónica de origen dental / Chronic maxillary rhinosinusitis of dental origin

Introducción: La rinosinusitis maxilar de origen dental (RSMD) es una entidad reconocida con una incidencia cercana al 30%. Su diagnóstico puede pasar inadvertido, tanto en la clínica como en las imágenes, llevando a persistencia de sintomatología y fracaso de tratamiento. Objetivo: Describir la presentación clínica, diagnóstico y tratamiento de pacientes con rinosinusitis maxilar de origen dental. Material y método: Reporte de casos. Se revisaron historias clínicas, imágenes radiológicas, protocolos operatorios y cultivos microbiológicos de pacientes con diagnóstico de rinosinusitis de origen dental atendidos en Clínica Las Condes. Resultados: Diez pacientes, siete mujeres y tres hombres con edad promedio de 63 años. Descarga posterior y rinorrea fueron los síntomas más frecuentes. El estudio incluyó radiografía dental y tomografía computarizada de cavidades paranasales. Las complicaciones secundarias a extracciones dentales y de implantes dentales fueron las etiologías más frecuentes, siendo el primer molar la pieza dental más comprometida. Todos los casos fueron manejados en conjunto por equipo médico y odontológico. Ocho pacientes requirieron tratamiento quirúrgico y 5 de ellos además procedimientos dentales asociados. La flora responsable fue mixta aerobia y anaerobia. Conclusión: En pacientes rebeldes a tratamiento y con síntomas unilaterales, se debe tener un alto índice de sospecha y buscar dirigidamente patologías dentales que expliquen cuadros rinosinusales máxilo-etmoidales.

Introduction: Odontogenic maxillary sinusitis is a well-recognized condition and accounts for approximately 30% of maxillary sinusitis cases. The diagnosis can be missed leading to failure in medical and surgical treatments. Aim: To describe clinical features, diagnosis procedures and treatment of odontogenic maxillary sinusitis. Material and method: Case Report. We retrospectively reviewed medical records, radiologic characteristic, surgical findings and intraoperative microbial cultures of patients with diagnosis of odontogenic sinusitis at Clínica Las Condes. Results: 10 patients were identified, 7 females and 3 males with a mean age of 63 years. Posterior discharge and rhinorrhea were the most common symptoms. Dental x-rays and paranasal sinus CT-scans were performed in all patients. Iatrogenic causes, which include dental implants and dental extractions, were the most common etiology and the 1st molar was the dental piece most frequently involved. Both otolaryngologists and dentistsworked together in all cases. 8 patients had endoscopic sinus surgery and five of them received concomitant management of the dental origin. Polymicrobial cultures were obtained. Conclusions: Otolaryngologists must have a high index of suspicion and look for an odontogenic cause in individuals with unilateral maxillary and ethmoidal symptoms, resistant to conventional sinusitis therapy.

Cervical Necrotizing Fasciitis of Odontogenic Origin in a Diabetic Patient Complicated by Substance Abuse

Cervical necrotizing fasciitis (CNF) is an uncommon, potentially fatal soft tissue infection with rapid progression characterized by necrosis in the subcutaneous tissue and fascia. A case of CNF of odontogenic origin in a diabetic patient, complicated by alcohol dependence and tobacco abuse, is presented with a literature review. The emergency procedure comprised hydration, colloid administration, glycemic control and broad spectrum antibiotic therapy, followed by aggressive surgical debridement. Necrosis in the platysma muscle was verified by histopathologic analysis. Reconstructive surgery was performed after suppressing the infection, and the wound was closed with an autologous skin graft. The patient had a long hospital stay, in part because the substance abuse led to a difficult recovery. The principles of early diagnosis, aggressive surgical debridement, broad-spectrum antibiotic therapy and intensive supportive care in the treatment of CNF were confirmed in the present case. It was concluded that given the occurrence of CNF in the presence of diabetes mellitus and abuse of substances such as alcohol and tobacco, the health care professional should consider a stronger response to treatment and longer hospitalization.

A fasceíte necrotizante cervical (FNC) é uma infecção rara de tecidos moles, potencialmente fatal, caracterizada por necrose no tecido subcutâneo e fascia com progressão rápida. Um caso de FNC de origem odontogênica em um paciente diabético, complicado por dependência alcoólica e abuso de tabaco, é relatado junto a uma revisão da literatura. O procedimento de emergência compreendeu hidratação, administração de colóide, controle glicêmico e antibioticoterapia de amplo espectro, seguido de debridamento cirúrgico agressivo. Necrose no músculo platisma foi verificada por análise histopatológica. Cirurgia reconstrutiva foi feita após resolução da infecção e a ferida foi fechada com enxerto dérmico autógeno. O paciente teve um longo período de internação hospitalar, em parte devido ao abuso de substâncias, o que levou a uma recuperação difícil. Os princípios de diagnóstico imediato, debridamento cirúrgico agressivo, antibioticoterapia de amplo espectro e cuidados em terapia intensiva no tratamento da FNC foram confirmados no presente caso. Foi concluído que diante da ocorrência de FNC na presença de diabetes mellitus e de abuso de substâncias como álcool e tabaco, o profissional assistente deve considerar uma resposta mais difícil ao tratamento e maior tempo de internação.

Oral health status among psychiatric patients in Riyadh, Saudi Arabia / Estado de la salud oral entre los pacientes psiquiátricos en Riyadh, Arabia Saudita

OBJECTIVE: The purpose of this study is to describe the oral health status among psychiatric patients as compared to psychologically normal controls. METHOD: A convenience sample of 100 patients who regularly attended a psychiatric clinic in King Saud University, King Khalid Hospital, Riyadh, Saudi Arabia, was selected as the study group. The control group consisted of 84 age- and gender-matched volunteers. All controls were screened using the General Health Questionnaire (GHQ-28) and five persons were excluded based on this. All the participants were interviewed and a comprehensive review questionnaire designed for this survey was completed, then they were examined. The examination involved an extra-oral examination as well as examination of teeth and soft tissues using the decayed, missing, filled teeth (DMFT) index, the Silness and Löe plaque index and the bleeding index. RESULTS: The study group had more tenderness in the masticatory muscles, especially the temporalis muscle. Temporomandbular joint findings showed no significant differences between groups. Decayed, missing, filled teeth index, plaque and bleeding indices were higher among the study group. The incidence of scalloped tongue was significantly higher among psychiatric patients. CONCLUSION: Oral health status is worse among psychiatric patients, who are more likely to develop some oral conditions, such as temporomandibular disorder and dental caries. It is necessary for both dental and mental healthcare providers to be aware of patients' needs and preventive measures to be instituted for them.

OBJETIVO: El propósito de este estudio es describir el estado de la salud oral entre los pacientes psiquiátricos en comparación con controles psicológicamente normales. MÉTODO: Una muestra conveniente de 100 pacientes que asistían regularmente a una clínica psiquiátrica en King Saud University, King Khalid Hospital, Riyadh, Saudi Arabia, fueron seleccionados como grupo de estudio. El grupo control consistió en 84 voluntarios apareados por sexo y edad. Todos los controles tuvieron que pasar el tamiz del Cuestionario General de Salud (GHQ-28) y cinco personas fueron excluidas sobre esa base. Todos los participantes fueron entrevistados, y respondieron a un cuestionario integral de revisión diseñado para este estudio, tras lo cual fueron examinados. El examen conllevó un examen extraoral así como un examen de los dientes y los tejidos blandos, incluyendo el índice DMFT, el índice de placa de Silness y Löe, y el índice de sangramiento. RESULTADOS: El grupo de estudio tenía más sensibilidad en los músculos masticatorios, especialmente el músculo temporal. Los hallazgos de la articulación temporomandbular no mostraron ninguna diferencia significativa entre los grupos. Los índices de DMFT, placa, y sangramiento fueron más altos entre el grupo del estudio. La incidencia de lengua festoneada fue significativamente más alta entre los pacientes psiquiátricos. CONCLUSIÓN: El estado de salud oral es peor entre los pacientes psiquiátricos, que muestran una mayor tendencia a desarrollar algunas condiciones orales tales como trastorno temporomandibular y caries dentales. Es necesario que tanto los profesionales de la salud dental como los de la salud mental tengan conciencia de las necesidades de sus pacientes y de las medidas preventivas que es necesario instituir para ellos.

Behavioral and Healthcare-Associated Risk Factors for Chronic Hepatitis C Virus Infection in Korea

The risk factors related to hepatitis C virus (HCV) infection showed geographic and temporal differences. We investigated HCV-related risk factors in Korea where intravenous drug use (IVDU) is uncommon. The HCV-related risk factors were investigated in a prospective, multicenter chronic HCV cohort (n = 711) using a standardized questionnaire in four university hospitals. The results were compared with those of 206 patients with chronic liver diseases not related to either of HCV or hepatitis B virus infection (comparison group). The IVDU was found in 3.9% and remote blood transfusion (> or = 20 yr ago) in 18.3% in HCV cohort group, while that in comparison group was in none and 5.3%, respectively. In a multivariate logistic analysis, transfusion in the remote past (odds ratio [OR], 2.99), needle stick injury (OR, 4.72), surgery (OR, 1.89), dental procedures (OR, 2.96), tattooing (OR, 2.07), and multiple sexual partners (2-3 persons; OR, 2.14, > or = 4 persons; OR, 3.19), were independent risk factors for HCV infection. In conclusion, the major risk factors for HCV infection in Korea are mostly related to conventional or alterative healthcare procedures such as blood transfusion in the remote past, needle stick injury, surgery, dental procedure, and tattooing although multiple sex partners or IVDU plays a minor role.

Behavioral and Healthcare-Associated Risk Factors for Chronic Hepatitis C Virus Infection in Korea

The risk factors related to hepatitis C virus (HCV) infection showed geographic and temporal differences. We investigated HCV-related risk factors in Korea where intravenous drug use (IVDU) is uncommon. The HCV-related risk factors were investigated in a prospective, multicenter chronic HCV cohort (n = 711) using a standardized questionnaire in four university hospitals. The results were compared with those of 206 patients with chronic liver diseases not related to either of HCV or hepatitis B virus infection (comparison group). The IVDU was found in 3.9% and remote blood transfusion (> or = 20 yr ago) in 18.3% in HCV cohort group, while that in comparison group was in none and 5.3%, respectively. In a multivariate logistic analysis, transfusion in the remote past (odds ratio [OR], 2.99), needle stick injury (OR, 4.72), surgery (OR, 1.89), dental procedures (OR, 2.96), tattooing (OR, 2.07), and multiple sexual partners (2-3 persons; OR, 2.14, > or = 4 persons; OR, 3.19), were independent risk factors for HCV infection. In conclusion, the major risk factors for HCV infection in Korea are mostly related to conventional or alterative healthcare procedures such as blood transfusion in the remote past, needle stick injury, surgery, dental procedure, and tattooing although multiple sex partners or IVDU plays a minor role.

Prevalence of parafunctional habits and temporomandibular dysfunction symptoms in patients attending a tertiary headache clinic / Prevalência de hábitos parafuncionais e de sintomas de disfunção temporomandibular em pacientes atendidos em um ambulatório terciário de cefaléias

OBJETIVE: To investigate the most prevalent forms of headache in a tertiary outpatient service, and to assess the frequency of associated parafunctional habits and temporomandibular dysfunction symptoms (TMD). METHOD: All new patients referred to the Headache Outpatient Service in UNIMES during 2008 were prospectively assessed by the neurologist and the dental surgeon. RESULTS: Eighty new patients were assessed; chronic migraine and episodic migraine without aura were the most prevalent conditions, accounting for 66.3 percent of all cases. There was significantly higher use of analgesics/days for the chronic migraine patients. The prevalence of parafunctional habits was 47.5 percent and the prevalence of TMD symptoms was 35 percent. CONCLUSION: The high prevalence of primary headaches, parafunctional habits and TMD symptoms and the inadequate use of analgesic drugs suggest that primary healthcare units need further training in the field of headache and orofacial pain.

OBJETIVO: Investigar as formas prevalentes de cefaléia em um ambulatório terciário e analisar a frequência de hábitos parafuncionais e de sintomas de disfunção temporomandibular (DTM) associados. MÉTODO: Todos os pacientes novos encaminhados ao Serviço de Cefaléias da UNIMES durante 2008 foram avaliados de forma prospectiva pelo neurologista e pelo cirurgião dentista. RESULTADOS: Oitenta pacientes novos foram avaliados; enxaqueca crônica e enxaqueca episódica sem aura foram as condições mais prevalentes, perfazendo 66,3 por cento de todos os casos. Houve uso significativamente alto de analgésicos/dias pelos pacientes com enxaqueca crônica. A prevalência de hábitos parafuncionais foi 47,5 por cento e a prevalência de sintomas de DTM foi 35 por cento. CONCLUSÃO: A alta prevalência de cefaléias primárias, hábitos parafuncionais, sintomas de DTM e o uso inadequado de drogas analgésicas sugerem que as unidades básicas de saúde necessitam maior treinamento no campo da cefaléia e da dor orofacial.

Maxillary sinusitis of dental origin: a case report and literature review / Sinusitis maxilar de origen dentario, reporte de un caso y revisión de la literatura

The inflammatory lesions that affect the paranasal sinuses receive the generic denomination sinusitis; the maxillary sinus is the most commonly affected. This inflammation can have various origins, including the tooth. We describe a case of maxillary sinusitis in a 56-year-old patient who experienced pain on the left-side maxilla, referred to atooth and performed a partial review of the literature.

Las lesiones inflamatorias que afectan los senos paranasales reciben la denominación genérica de sinusitis, siendo el seno maxilar el más comúnmente afectado. Esta inflamación puede tener diversos orígenes, entre ellos el dentario. Se describe un caso de sinusitis del seno maxilar de origen dentario de un paciente de 56 años que consultó por dolor en la zona maxilar del lado izquierdo referido a una pieza dentaria y se realiza una revisión parcial de la literatura.

overview of odontogenic infections. When to refer?

Dental and Medical practitioners as well as specialists in medicine and dentistry are often faced with the challenge of managing patients with infections. These infections can range in their severity from those that may only require antibiotic therapy to those that may require aggressive surgical intervention. Oral and maxillofacial infections, in particular, have the tendency to spread rapidly along fascial planes and if left untreated they may lead to highly morbid clinical conditions with severe complications that may ultimately lead to death. Careful diagnosis and sound clinical judgment have the potential to reduce morbidity associated with odontogenic infections. The success of these treatments are, in part, dependent on the virulence of the pathogen involved, the resistance of the host and strict adherence to sound medical, pharmacological and surgical principles. An overview of the principles of antibiotic therapy, diagnostic laboratory and imaging studies and the principles of surgical management will be presented

Epidemiologic and ethiologic evaluation of deep neck infection in Shiraz Khalili hospital during 1996 - 2005

infections of the head and neck spaces are serious and dangerous due to vicinity to the great vessels and mediastinum. The most common source of infection leading to head and neck space abscess, are dental infection. This retrospective study was performed to determine the prevalence of head and neck space infections following dental infections, the spaces involved, the most common microorganisms involved in these infections and to determine the prevalence of head and neck space infections according to age and sex of the patients. In this retrospective study, the charts of 241 patients with head and neck space infections referring to Khalili hospital during the past 10 years was reviewed and data well assessed. The most common source of head and neck space infections was dental infections occurring in 141 patients [58.5%]. From these 141 patients, 79 patients were male and 62 patients were female. The most common age of involvement was the 3[rd] decade [39 patient 27.6%]. The second most common cause was tonsillitis occurring in 33 patients [13.7%]. The most common spaces involved in 141 patients with head and neck space infection following dental infections, were: simultaneous involvement of submandibular, sub mental and sublingual space bilaterally [Ludwig's angina] in 53 patients [37.6%] followed by sumbandibular space in 45 patients [31.9%] and Para pharyngeal space in 37 patients [26.2%]. Culture has been performed in only 34 patients from which bacterial growth occurred in 18 cases. The most common organism was non hemolytic streptococci [11 cases]. Head and neck space infection are dangerous and life threatening conditions that occur most commonly following dental infections so it seems that escalating the general knowledge about oral health, increasing dentistry centers and early and proper management of dental infections have a major role in reducing the incidence of head and neck abscesses

Angina de Ludwig: manejo en el servicio de cirugía maxilofacial del Hospital Central Militar / Ludwig's angina: its treatment in the maxillo-facial department of the Military Central Hospital

Entre las complicaciones de las infecciones cervicofaciales se encuentra la angina de Ludwing, celulitis acentuada que por lo general comienza en el espacio aponeurótico submandibular y afecta en forma secundaria a los espacios aponeuróticos sublingual y submentoniano de forma bilateral. Es una infección letal ya que puede producir edema de glotis, elevación y proptrusión de la lengua causando obstrucción respiratoria progresiva. En el presente trabajo se informan 17 casos atendidos en el servicio de cirugía maxilofacial del Hospital Central Militar en los últimos 13 años. Los antibióticos de elección fueron penicilina G sódica cristalina y G procaínica, metronidazol, clindamicina y gentamicina. Los procedimientos quirúrgicos realizados fueron 15 canalizaciones y 2 fasciotomías. El manejo hospitalario de la angina de Ludwig, incluye un diagnóstico oportuno, el mantener una vía aérea permeable, iniciar antibioticoterapia masiva y una vez estabilizado el paciente; realizar los procedimientos quirúrgicos u odontológicos necesarios

Prevalencia de bebedores de alcohol entre los pacientes que se atienden en la Facultad de Odontología / Prevalence of alcohol drinkers among patients of the Odontology School

La odontología debería tener mayor ingerencia en algunos problemas de salud pública general importantes en nuestro país. De acuerdo a este se realizó un estudio para determinar la prevalencia de bebedores problema en quienes acudían a recibir atención dental a la Facultad de Odontología de la Universidad de Chile en 1989. Se analizaron 420 pacientes mayores de 15 años de ambos sexos, cuyas edades fluctuaron entre los 15 y los 74 años. La investigación se realizó como un estudio transversal, por medio de la aplicación de un instrumento ya probado para tal efecto: la Escala Breve de Bebedores Alcohólicos, E.B.B.A. De la muestra seleccionada se estudiaron tres variables: sexo, edad y distribución por clínica, las que fueron analizadas estadísticamente mediante el test de Chi cuadrado y la prueba de Z. Los resultados obtenidos a partir de la muestra indican que hay una alta prevalencia de bebedores problema, habiéndose obtenido una tasa global de 31,9 por ciento de ellos. La diferencia de frecuencia encontrada entre ambos sexos fue estadísticamente significativa. La información obtenida permite sugerir la necesidad de profundizar los conocimientos en cuanto a los cambios morfofuncionales de las estructuras bucomáxilo faciales en pacientes adictos al alcohol