Virus SARS-CoV-2 y su impacto en el bruxismo / SARS-CoV-2 virus and its impact on bruxism

La cavidad oral se puede ver alterada a causa del virus SARS-CoV-2 de manera transitoria o permanente, lo que afecta a distintas partes de la cavidad oral incluyendo las glándulas salivales, esto causa xerostomía. La disgeusia es uno de los síntomas principales a lo largo de la enfermedad, nos enfocaremos en aquellas manifestaciones psicológicas como la ansiedad y el estrés en su interacción con la aparición del trastorno llamado bruxismo (AU)

The oral cavity can be altered by the SARS-CoV-2 virus in a transient or permanent manner, affecting different parts of the oral cavity including salivary glands causing xerostomia. Dysgeusia is one of the main symptoms throughout the disease, we will focus on those psychological manifestations such as anxiety and stress in their interaction with the appearance of the disorder called bruxism (AU)

Prevalence of hyposalivation and associated factors in survivors of head and neck cancer treated with radiotherapy

Abstract Hyposalivation and sensation of dry mouth (xerostomia) are one of the most common adverse effects in the treatment of patients with head and neck cancer. Objective: This study evaluates the prevalence of late hyposalivation and associated factors in survivors of squamous cell carcinoma of the oral cavity, oropharynx, hypopharynx, or larynx treated with radiotherapy with or without concomitant chemotherapy. Methodology: A cross-sectional study was conducted with 88 patients who had concluded radiotherapy at least three months before the study, at a referral center for the treatment of head and neck cancer in the Southern region of Brazil. Hyposalivation was evaluated based on the stimulated salivary flow rate using the spitting method. Multivariate analysis using binary logistic regression was performed to determine the associations between hyposalivation and clinical and demographic variables. Results: Hyposalivation was found in 78.41% of the sample and the mean radiation dose was 63.01 Gy (±9.58). In the crude model of the multivariate analysis, hyposalivation was associated with higher doses of radiation (p=0.038), treatment with concomitant radiotherapy and chemotherapy (p=0.005), and time elapsed since the end of radiotherapy (p=0.025). In the adjusted model of the multivariate analysis, hyposalivation was only associated with dose and time elapsed. Patient who received higher doses of radiation had a 4.25-fold greater chance of presenting hyposalivation, whereas a longer time elapsed since the end of radiotherapy exerted a 75% protective effect against the occurrence of hyposalivation. Conclusion: Hyposalivation is a highly prevalence late-onset side effect of radiotherapy in patients treated for head and neck cancer, with a greater chance of occurrence among those who received higher doses of radiation and those who ended therapy less than 22 months before our study. Concomitant chemotherapy and radiotherapy does not seem to increase the chances of hyposalivation compared to radiotherapy alone.

Advances on mechanism and treatment of salivary gland in radiation injury / 华西口腔医学杂志

Oral squamous cell carcinoma (OSCC) is the most frequent tumour in head and neck malignant. The current treatment is mainly based on surgery therapy, radiation therapy and chemical therapy. Meanwhile, there are many a defect in the treatment. For example, there are many defects in radiotherapy. Radioactive salivatitis is the most common. In addition, there are a series of changes such as dry mouth, oral mucositis, rampant dental caries, and radioactive osteomyelitis of jaw, which cause swallowing, chewing problems, and taste dysfunction. Currently, the research on radioactive salivatitis is progressing rapidly, but its mechanism is more complication. This paper review aims to summarize the research progress in this field.

Xerostomia e câncer de mama / Xerostomia and breast cancer / Xerostomía y cáncer de mama

Objetivo: Identificar os estudos que descrevem a prevalência de xerostomia em pacientes com câncer de mama e em quimioterapia. Método: Revisão integrativa, partindo da questão norteadora << Quais as evidências científicas sobre a prevalência de xerostomia em pacientes com câncer de mama e em quimioterapia? >>. Foi realizada uma busca nas bases de dados: US National Library of Medicine and National Institute of Health, Literatura Latino-Americana e do Caribe em Ciências da Saúde e Scientific Electronic Library Online por meio dos Descritores em Ciências da Saúde. Foram encontrados 63 artigos, analisados por dois pesquisadores seguindo os critérios de inclusão e exclusão. Resultados: A prevalência de xerostomia foi descrita em 10 artigos que utilizaram como método de avaliação escalas, questionários com respostas dicotômicas e sialometria. Conclusão: Identificou-se uma prevalência de 47% a 77,3% de xerostomia durante a quimioterapia

Objective: To identify studies describing the prevalence of xerostomia in breast cancer patients undergoing chemotherapy. Method: Integrative review based on the guiding question << What is the scientific evidence on the prevalence of xerostomia in breast cancer patients undergoing chemotherapy? >>. We searched the US National Library of Medicine and National Institute of Health, Latin American and Caribbean Health Sciences Literature and Scientific Electronic Library Online databases using the Health Sciences Descriptors. We found 63 articles, which were analyzed by two researchers, following the inclusion and exclusion criteria. Results: The prevalence of xerostomia was described in 10 articles that used scales, questionnaires with dichotomous answers, and sialometry as evaluation methods. Conclusion: A prevalence of 47% to 77.3% of xerostomia during chemotherapy was identified

Objetivo: Identificar estudios que describen la prevalencia de xerostomía en pacientes con cáncer de mama y quimioterapia. Método: Revisión integradora, basada en la pregunta guía << ¿Cuál es la evidencia científica sobre la prevalencia de xerostomía en pacientes con cáncer de mama y quimioterapia? >>. Se realizaron búsquedas en las bases de datos US National Library of Medicine and National Institute of Health, Literatura Latino-Americana y del Caribe en Ciencias de la Salud y Scientific Electronic Library Online utilizando los Descriptores de Ciencias de la Salud. Encontramos 63 artículos, que fueron analizados por dos investigadores siguiendo los criterios de inclusión y exclusión. Resultados: La prevalencia de xerostomía se describió en 10 artículos que utilizaron escalas, cuestionarios con respuestas dicotómicas y sialometría como método de evaluación. Conclusión: Se identificó una prevalencia de xerostomía del 47% al 77,3% durante la quimioterapia

Frecuencia del síndrome de Sjögren en pacientes con lupus eritematoso del Hospital Central del Instituto de Previsión Social en el año 2017 que acuden a tratamiento odontológico / Frequency of sjögren's syndrome in patients with lupus erythematosus at the Central Hospital of the Social Welfare Institute in 2017 who seek dental treatment

La xerostomía, síndrome de boca seca o síndrome de Sjögren se define como la disminución del flujo salival en condiciones de reposo. El origen de esta endad clínica es mulcausal, pudiendo ser el resultado de una alteración localizada sobre las glándulas productoras de la saliva, o bien el resultado de un desequilibrio o alteración de índole sistémica. La evaluación del grado de disfunción de las glándulas salivares ha constuido un objevo básico por ello el propósito de este estudio fue determinar frecuencia del síndrome de Sjögren en pacientes con lupus eritematoso del hospital central del Instuto de Previsión Social en el año 2017 que acuden a tratamiento odontológico. Se realizó un descripción observacional retrospecvo para lo cual se recurrió a la historial clínico previo permiso del jefe de reumatología para acceder a los datos . Como conclusión general se obtuvo que existe una predominancia de pacientes de entre 46 a 50 años de edad representada por el 39% y de sexo femenino en el 83% de los casos. Se demuestra la frecuencia mencionando que acudieron 74 pacientes y de los cuales 18 (24%) personas presentan lupus eritematoso y síndrome de Sjögren, y entre estos el 78% acude a tratamiento odontológico.

Xerostomia, dry mouth syndrome or Sjögren's syndrome is defined as decreased salivary flow under resng condions. The origin of this clinical enty is mulcausal, and may be the result of an alteraon located on the glands producing saliva, or the result of an imbalance or alteraon of a systemic nature. The evaluaon of the degree of dysfuncon of the salivary glands has been a basic objecve and therefore the purpose of this study was to determine the frequency of Sjögren syndrome in paents with lupus erythematosus from the central hospital of the Social Welfare Instute in 2017 who seek dental treatment. A retrospecve observaonal descripon was made, for which the clinical history was used with the prior permission of the head of rheumatology to access the data. The general conclusion was that there is a predominance of paents between 46 and 50 years of age represented by 39% and female in 83% of cases. The frequency is demonstrated by menoning that 74 paents aended and of which 18 (24%) people present with lupus erythematosus and Sjögren's syndrome, of which 78% aend dental treatment

Estudo da prevalência de alterações orais em uma população de pacientes diabéticos do estado da Paraíba / Study of the prevalence of oral changes in a population of diabetic patients in the state of Paraiba

Introdução: o Diabetes Mellitus (DM) atinge cerca de 425 milhões de pessoas no mundo. A cavidade oral pode se tornar susceptível ao surgimento de inúmeras alterações decorrentes do DM como xerostomia, infecções, queilites, alterações gengivais e periodontais. Objetivo: determinar a prevalência de alterações da cavidade oral em pacientes com DM. Material e Método: A amostra foi composta por 118 indivíduos com DM atendidos nas unidades básicas de saúde da família. As características clínicas dos pacientes foram analisadas com auxílio de espátula e iluminação artificial e registradas em um formulário previamente elaborado. Para a análise estatística foi considerado o valor de p<0,05 como significativo. Resultados: da amostra, 38 (32,2%) indivíduos eram do sexo masculino e 80 (67,8%) do sexo feminino, sendo a média de idade de 63,6 anos. O tipo 2 de DM foi o mais frequente (n=109/92,4%). Observou-se alta prevalência de alterações orais, destacando-se: a xerostomia, que exibiu associação com o uso de medicamentos (p=0,049) e a doença periodontal mais frequente em indivíduos com ≤ 60 anos (p<0,0001). A maioria dos indivíduos que fazia uso de hipoglicemiantes orais não apresentou a doença (77,8%; p=0,035). As lesões potencialmente malignas estiveram associadas com o sexo masculino (65,2%; p<0,0001) e com indivíduos de idade acima de 60 anos (82,6%; p<0,015). Conclusão: os indivíduos com DM apresentaram alta prevalência de alterações orais, destacando-se a xerostomia, doença periodontal e alterações potencialmente malignas sugerindo que o diabetes pode influenciar o desenvolvimento e/ou agravamento das doenças orais.(AU)

Introduction: Diabetes Mellitus (DM) affects about 425 million people worldwide. The oral cavity may become susceptible to the emergence of numerous changes from DM, such as xerostomia, infections, cheilitis, and gingival and periodontal changes. Objective: To determine the prevalence of oral cavity changes in patients with DM. Material and Method: The sample consisted of 118 individuals with DM assisted at basic family health units. The clinical characteristics of the patients were analyzed using an oral spatula and artificial lighting, and they were recorded on a form previously prepared. For the statistical analysis, the value of p <0.05 was considered significant. Results: From the sample, 38 (32.2%) individuals were men and 80 (67.8%) were women, with an average age of 63.6 years. Type 2 DM was the most frequent (n = 109 / 92.4%). There was a high prevalence of oral changes, namely xerostomia, which showed association with medication use (p = 0.049) and a higher frequency of periodontal disease in individuals aged ≤ 60 years (p <0.0001). Most of the individuals who used oral hypoglycemic agents did not present the disease (77.8%; p = 0.035). Potentially malignant lesions were associated with the male sex (65.2%, p <0.0001) and individuals over 60 years old (82.6%, p <0.015). Conclusion: Individuals with DM presented a high prevalence of oral changes, especially xerostomia, periodontal disease, and potentially malignant changes, suggesting that diabetes may affect the development and/or aggravation of oral diseases.(AU)

Estimulação elétrica no tratamento da hipossalivação induzida pela radioterapia / Electrical stimulation in the treatment of radiotherapy-induced hyposalivation

RESUMO Objetivo Analisar os efeitos da eletroestimulação sobre o fluxo salivar de pacientes com hipossalivação induzida por radioterapia em região de cabeça e pescoço. Estratégia de pesquisa Utilizaram-se as bases de dados Medline (via Pubmed), Cochrane Library, Scopus e Lilacs. Critérios de seleção Foram selecionados os ensaios clínicos que avaliaram objetivamente o fluxo salivar, publicados nos últimos 10 anos em português, inglês ou espanhol. Análise dos dados Para avaliação metodológica dos estudos, foi utilizada a escala PEDro. Resultados A estratégia de busca resultou em 21 publicações, sendo que 17 foram excluídas, selecionando-se assim 4 artigos. Os estudos incluídos contaram com um total de 212 participantes, sendo que todos demonstraram aumento do fluxo salivar, tanto por meio do método de eletroacupuntura quanto pela estimulação aplicada diretamente sobre as glândulas salivares. A pontuação obtida por meio da escala PEDro foi baixa, evidenciando qualidade metodológica baixa e com consideráveis riscos de viés. Conclusão os estudos incluídos demonstram o potencial clínico da TENS no aumento do fluxo salivar de pacientes com câncer de cabeça e pescoço tratados com RT.

ABSTRACT Purpose To analyze the effects of electrical stimulation on the salivary flow of head and neck cancer patients with radiotherapy-induced hyposalivation. Research strategies Searches were made in the Medline (via Pubmed), Cochrane Library, Scopus and Lilacs databases. Selection criteria Selection included clinical trials that evaluated salivary flow objectively, published in the last 10 years in either Portuguese, English or Spanish. Data analysis The PEDro scale was used for the methodological evaluation of the studies. Results The search strategy resulted in 21 publications, 17 of which were excluded, hence there were 4 articles left. The included studies had a total of 212 participants, all of whom had an increase in salivary flow, both through the electroacupuncture method and direct application on the salivary glands. The score obtained through the PEDRo scale was low, evidencing questionable methodological quality and risk of bias. Conclusion The included studies demonstrate the clinical potential of TENS to increase the salivary flow of head and neck cancer patients treated with RT.

Recommendations from the Brazilian society of rheumatology for the diagnosis of Sjögren's syndrome (Part I): glandular manifestations (systematic review)

Abstract Background: Primary Sjögren's syndrome (pSS) is a systemic immune-mediated disease whose main characteristic is exocrine gland inflammation and, subsequent reduction in tear and saliva production. A delayed diagnosis is common due to the nonspecific clinical manifestations of disease. The aim of the present study was to develop recommendations for the diagnosis of glandular manifestations of pSS based on evidence and expert opinion. Main body of the abstract: We conducted a systematic literature review to retrieve the best evidence available on the accuracy of diagnostic tests for pSS. We also held two in-person meetings with experts (rheumatologists, pathologists, ophthalmologists and dentists) to establish their level of agreement using the Delphi method. Ultimately, we generated 18 recommendations that aim to facilitate the diagnosis of the glandular manifestations of pSS. Conclusion: The diagnosis of glandular manifestations of pSS is complex and multidisciplinary. It requires specific knowledge in the field of ophthalmology, immunology, pathology and imaging, making it compulsory for the rheumatologist to work with professionals from these different areas in order to improve accuracy and early diagnosis. Glandular dysfunction tests, ANA, RF, Anti-Ro, protein electrophoresis, urinalysis, blood count, C-Reactive protein, complement, testing for syphilis and viruses (HCV, HIV) and SGUS should be investigated when dryness or systemic manifestation are present. Minor salivary gland biopsy is recommended for all anti-Ro negative or incomplete criteria cases.

Obesity, salivary glands and oral pathology / Obesidad, glándulas salivales y patología oral

Abstract Obesity has reached pandemic proportions in recent years. Not only adults suffer from the disease, but increasingly children and young people. One of the main causes of overweight and obesity is excessive food intake, in particular heavily processed carbohydrates. Obesity alters multiple organs, including the salivary glands, bringing functional alterations with it. Among researchers, the relation between obesity and tooth decay, periodontal disease and xerostomia is being debated. More and more scientific reports are drawing attention to the changes in the microflora of the oral cavity during obesity. All changes are closely related to the morphological and functional alterations of the salivary glands. This article review presents the current points of view regarding the impact of obesity on the health of the salivary glands, and how changes their functions influence other structures in the oral cavity.

Resumen La obesidad ha alcanzado proporciones pandémicas en los últimos años. No solo los adultos padecen la enfermedad, sino también cada vez más niños y jóvenes. Una de las principales causas del sobrepeso y la obesidad es la ingesta excesiva de alimentos, en particular los carbohidratos altamente procesados. La obesidad altera múltiples órganos, incluidas las glándulas salivales, y trae consigo alteraciones funcionales. Entre los investigadores, se está debatiendo la relación entre la obesidad y la caries dental, la enfermedad periodontal y la xerostomía. Cada vez más informes científicos están llamando la atención sobre los cambios en la microflora de la cavidad oral durante la obesidad. Todos los cambios están estrechamente relacionados con las alteraciones morfológicas y funcionales de las glándulas salivales. Esta revisión del artículo presenta los puntos de vista actuales sobre el impacto de la obesidad en la salud de las glándulas salivales, y cómo los cambios en sus funciones influyen en otras estructuras de la cavidad oral.

Xerostomia em pacientes com HIV/ Aids: revisão sistemática de literatura

Introdução: a transmissão do vírus da imunodeficiênciahumana (HIV) leva à redução da resposta imunológicado indivíduo, podendo ocorrer alterações na cavidadebucal, entre elas, a xerostomia. Objetivo: por meio deuma revisão sistemática, este trabalho objetiva analisara presença e as correlações da presença de xerostomiaem pacientes HIV positivos ou com Aids. Métodos: foifeita busca nas bases de dados PubMed, SciELO e Lilacsutilizando os descritores "oral manifestations", "HIV","Aids" e "xerostomia", sendo os critérios de inclusãotrabalhos epidemiológicos descritivos e observacionaiscom no máximo 10 anos de publicação e em línguainglesa, portuguesa ou espanhola. Resultados: foramencontrados 162 artigos que, após critérios exclusivos,foram reduzidos a 15 trabalhos desenvolvidos em setepaíses, nos quais se encontraram valores variando entre2% e 76,2% na presença de xerostomia em pacientescom HIV/Aids, a maioria homens entre a terceira e aquarta década de vida. Conclusão: a xerostomia em pacientescom HIV/Aids necessita de diversas pesquisasclínicas, devido aos inúmeros fatores que podem ocasionara etiologia, além da grande divergência de resultadosencontrados. Estudos afirmam que patologias queacometem as glândulas salivares podem levar à sensaçãode boca seca nesses indivíduos e são decorrentesda utilização prolongada da terapia antirretroviral altamenteativa (Haart). (AU)

Introduction: the human immunodeficiency virus transmission reduces the immune response of individuals and may cause changes in the oral cavity, such as xerostomia. Objective: by means of a systematic review, the present study aims to analyze the presence and correlations of the presence of xerostomia in HIV+ patients or those living with AIDS. Methods: the databases PubMed, SciELO, and Lilacs were searched using the descriptors "oral manifestations", "HIV", "AIDS", and "xerostomia". Inclusion criteria consisted of observational descriptive epidemiological studies with up to 10 years of publication, in English, Portuguese, or Spanish. Results: a total of 162 articles were found, which after exclusive criteria were reduced to the quantity of 15 studies from seven countries. These studies found varying values in the presence of xerostomia in HIV/ AIDS patients, ranging from 2% to 76.2%, most of them in men between the third and fourth decades of life. Conclusion: xerostomia in HIV/AIDS patients requires several clinical studies due to the numerous factors that may cause the etiology, besides the great divergence of results found. Studies indicate that pathologies affecting the salivary glands may cause dry mouth sensation in these patients, which derives from the prolonged use of Highly Active Antiretroviral Therapy (HAART). (AU)

Intensity-modulated radiation therapy (IMRT) versus 3-dimensional conformal radiation therapy (3D-CRT) for head and neck cancer: cost-effectiveness analysis

SUMMARY BACKGROUND: A cost-effectiveness analysis of IMRT compared to 3D-CRT for head and neck cancer patients (HNCPs) was conducted in the Brazilian Public Health System. METHODS: A Markov model was used to simulate radiation therapy-induced dysphagia and xerostomia in HNCPs. Data from the PARSPORT trial and the quality-of-life study were used as parameters. The incremental cost-effectiveness ratio (ICER) and cost per quality-adjusted life-year (QALY) gained were calculated. RESULTS: At 2 years, IMRT was associated with an incremental benefit of 0.16 QALYs gained per person, resulting in an ICER of BRL 31,579 per QALY gained. IMRT was considered cost-effective when using the guideline proposed by the World Health Organization (WHO) of three times the national gross domestic product (GDP) per capita (BRL 72,195). Regarding life expectancy (15 years), the incremental benefit of IMRT was 1.16 QALYs gained per person, with an ICER of BRL 4,341. IMRT was also cost-effective using the WHO definition, which states that the maximum cost is equal to the GDP per capita (BRL 24,065). CONCLUSIONS: IMRT was considered cost-effective from the perspective of the Brazilian public health system.

RESUMO INTRODUÇÃO: Foi realizada uma análise de custo-efetividade da radioterapia com intensidade modulada de feixe (IMRT) comparada com a radioterapia conformada para pacientes com câncer de cabeça e pescoço (CCP) no contexto do Sistema Único de Saúde (SUS). MÉTODOS: Foi elaborado um modelo de Markov para comparar os custos médicos diretos e os desfechos de saúde relacionados à qualidade de vida do paciente pós-intervenção radioterápica sofrendo de xerostomia e disfagia. Com essa finalidade, foram usados os dados do estudo PARSPORT e parâmetros de qualidade de vida. Os resultados comparativos das estratégias alternativas de tratamento foram medidos pela razão de custo-efetividade incremental (RCEI). O desfecho analisado foi o de anos de vida ajustados à qualidade (QALY). RESULTADOS: Em um horizonte de tempo de dois anos, a IMRT foi associada com um benefício incremental de ganho de 0,16 QALYs por indivíduo, resultando em um RCEI de R$ 31.579 por QALY ganhado. A IMRT foi custo-efetivo, adotando-se o limite máximo de disposição a pagar, proposto pela OMS, de três vezes o PIB per capita nacional, equivalente a R$ 72.195. No horizonte de tempo de 15 anos, o benefício incremental de ganho foi de 1,16 QALYs por indivíduo, com um RCEI de R$ 4.341. A IMRT foi custo-efetivo, adotando-se o limite de disposição a pagar, proposto pela OMS, de uma vez o PIB per capita nacional, equivalente a R$ 24.065. CONCLUSÃO: A IMRT foi considerada um tratamento custo-efetivo na perspectiva do SUS.

A novel method to evaluate salivary flow rates of head and neck cancer patients after radiotherapy: a pilot study / Um novo método para avaliar as taxas de fluxo salivar em pacientes com câncer de cabeça e pescoço após radioterapia: estudo piloto

Abstract Introduction The procedure used to evaluate salivary flow rate is called sialometry. It can be performed through several techniques, but none appears to be really efficient for post-radiotherapy patients. Objective To adequate sialometry tests for head and neck cancer patients submitted to radiotherapy. Methods 22 xerostomic patients post-radiotherapy (total radiation dose ranging from 60 to 70 Gy) were included in this study. Ten patients were evaluated using sialometries originally proposed by the Radiation Therapy Oncology Group and twelve were assessed by our modified methods. Unstimulated and stimulated sialometries were performed and the results were classified according a grading scale and compared between both groups. Results There was no statistically significant difference between the salivary evaluations of both groups (p = 0.4487 and p = 0.5615). Also, most of these rates were classified as very low and low. Conclusion This novel method seems to be suitable for patients submitted to radiotherapy.

Resumo Introdução O procedimento utilizado para avaliar a taxa de fluxo salivar é denominado sialometria. Pode ser realizado por meio de várias técnicas, mas nenhuma parece ser realmente eficiente para pacientes pós-radioterapia. Objetivo Adaptar sialometrias para pacientes com câncer de cabeça e pescoço submetidos à radioterapia. Método 22 pacientes xerostômicos pós-radioterapia (dose de radiação total variando de 60-70 Gy) foram incluídos neste estudo. Dez pacientes foram avaliados utilizando sialometrias originalmente propostas pelo Radiation Therapy Oncology Group e doze foram avaliados por nossos métodos modificados. Sialometrias não estimuladas e estimuladas foram conduzidas e os resultados foram classificados de acordo com uma escala de graduação e comparados entre os dois grupos. Resultados Não houve diferença estatisticamente significante entre as avaliações salivares de ambos os grupos (p = 0,4487 e p = 0,5615). Além disso, a maioria dessas taxas foi classificada como muito baixa e baixa. Conclusão Esse novo método parece ser adequado para pacientes submetidos à radioterapia.

Efeito agudo da Transcutaneous Electric Nerve Stimulation (TENS) sobre a hipossalivação induzida pela radioterapia na região de cabeça e pescoço: um estudo preliminar / Transcutaneous Electrical Nerve Stimulation (TENS) on hyposalivation induced by radiotherapy in the head and neck region: a preliminary study

RESUMO Objetivo Verificar o efeito agudo da eletroestimulação sobre o fluxo salivar de pacientes com hipossalivação. Método Ensaio clínico não controlado que avaliou o efeito de uma única aplicação da Transcutaneous Electric Nerve Stimulation (TENS) sobre o fluxo salivar de 15 pacientes com hipossalivação induzida por radioterapia (RT), utilizada no tratamento de câncer de cabeça e pescoço. A média de idade dos pacientes foi de 56,8 ± 6,46 anos e o gênero masculino foi predominante (73%). A TENS foi programada com 50Hz de frequência, 250μs de largura de pulso e a intensidade foi ajustada ao longo dos 20 minutos conforme máxima tolerância. Os eletrodos foram fixados bilateralmente sobre a região das glândulas salivares. A avaliação do fluxo salivar foi realizada por meio de sialometria estimulada, antes e imediatamente após a aplicação da TENS. Resultados Em 80% dos casos, o tratamento oncológico incluiu quimioterapia. A RT foi aplicada em 80% dos casos na região e orofaringe, com intensidade média de 64,6 ± 7,27 Gy. Após a TENS, o fluxo salivar aumentou significativamente (p = 0,0051), passando de 0,05 (0,00; 0,40) mL/min para 0,10 (0,07;0,40) mL/min. A resposta à TENS foi diretamente correlacionada à intensidade da corrente elétrica tolerada (r = 0,553; p = 0,032) e à dose utilizada na RT (r = -0,514; p = 0,050). Conclusão A TENS aumentou significativamente o fluxo salivar de pacientes com hipossalivação induzida pela RT.

ABSTRACT Purpose To verify the acute effect of electrostimulation on the salivary flow of patients with hyposalivation. Methods Uncontrolled clinical trial evaluating 15 patients with hyposalivation induced by radiotherapy (RT) used for head and neck cancer treatment. Mean age of the patients was 56.8 ± 6.46 years. Males outnumbered females (73%). Transcutaneous Electrical Nerve Stimulation (TENS) was adjusted with 50Hz of frequency and 250μs of pulse width. Intensity was adjusted over a 20-minute period according to maximum tolerance. The electrodes were attached bilaterally on the region of the salivary glands. Evaluation of the salivary flow was performed through sialometry before and immediately after application of TENS. Results The most prevalent region for RT was the oropharynx (80.0% of cases). The mean dose used in RT was 64.6 ± 7.27 Gy. After TENS, salivary flow increased significantly (p = 0.0051) from 0.05 (0.00; 0.40) mL/min to 0.10 (0.07: 0.40) mL/min. The response to TENS was directly correlated with the intensity of the tolerated electric current (r = 0.553; p = 0.032) and the dose used in RT (r = -0.514; p = 0.050). Conclusion TENS was able to increase the salivary flow rate of patients with RT-induced hyposalivation.

Manejo actual de la xerostomía / Current management of xerostomia

La xerostomía es la sensación de boca seca producto de una alteración del funcionamiento de las glándulas salivales. No es una enfermedad propiamente tal, pero sí una manifestación común a una serie de patologías alterando considerablemente la calidad de vida de los pacientes. Es una complicación frecuente de los pacientes oncológicos de cabeza y cuello que han sido irradiados, por lo que el otorrinolaringólogo juega un rol importante en su manejo. El objetivo de esta revisión es actualizar el manejo de la xerostomía, haciendo énfasis en la prevención de ésta en el paciente oncológico.

Xerostomia is the sensation of dry mouth and is usully caused by an altered functioning of the salivary glands. It is not a disease itself, but it is a common manifestation of a number of pathologies altering the quality of life of patients. It is a common complication of head and neck cancer patients that have been irradiated, so the otolaryngologist plays an important role in its management. The objective ofthis review is to update the management of xerostomia, with emphasis on preventing this in cancer patients.

Manejo odontológico de las complicaciones orales como resultado de la terapia contra el cáncer / Dental management of oral complications of cancer therapy

La atención dental debe acompañar a los pacientes que reciben terapia contra el cáncer de cabeza y cuello debido a que existen efectos secundarios relacionados con la radioterapia y un mal estado bucal, así como secuelas por la cirugía ablativa. Los principales efectos desarrollados por la radioterapia incluyen xerostomía y mucositis, seguidos por trismus, caries por radiación y osteorradionecrosis. Para disminuir el riesgo de desarrollar estos padecimientos es necesaria la visita alcirujano dentista previa al tratamiento para realizar los procedimientos bajo los requerimentos de un paciente con cáncer y hacer la toma de decisiones ante dientes cariados, restauraciones extensas, enfermedad periodontal o dientes posteriores inaccesibles para una higiene diaria. Sin embargo, puede ser desafi ante llevar a cabo estas tareas en el corto periodo entre el diagnóstico del paciente y el inicio de su tratamiento. De igual manera los pacientes que han terminado el tratamiento deberán ser atendidos con consideraciones especiales por la posibilidad de desarrollar osteorradionecrosis...

La saliva: una mirada hacia el diagnóstico / Saliva: a look on diagnosis

La saliva juega un importante rol en la prevención y mantenimiento de la salud oral. La alteración del flujo salival es un factor clave en el desarrollo de diversas patologías e infecciones oportunistas en lacavidad bucal. Existen diversos caminos por los que algunos elementosque no son constituyentes y habituales de la saliva pueden llegar a ella, a través de rutas intracelulares y extracelulares; gracias a esta posibilidad, se abre una perspectiva para su aplicación en el diagnósticode determinadas patologías. El conocimiento de su composición y funciones ayudará a promoveren los profesionales una mayor conciencia del papel de la saliva en la prevención de patologías y mantenimiento de la salud oral.

Saliva plays an important role in the preventionand maintenance of oral health. Alterationof salivary flow is a key factor in the developmentof various diseases and opportunistic infectionsin the oral cavity.There are various way by which some elementsthat are not common constituents of saliva canreach it through intracellular and extracellularroutes; thanks to this possibility, a prospectfor application in the diagnosis of certainpathologies opens. The knowledge of itscomposition and functions, help promoteprofessionals, greater awareness of the roleof saliva in the prevention of diseasesand maintenance of oral health.

Síndrome de Sjögren: Caso clínico / Sjögren's syndrome: case report

Introducción: El síndrome de Sjögren (SS) es una enfermedad crónica, autoinmune, que afecta principalmente a las glándulas exocrinas lagrimales y salivales. En niños es una enfermedad rara. Objetivo: Presentar el caso de un adolescente con síntomas inespecíficos, en que la sospecha clínica hizo llegar al diagnóstico de SS. Caso Clínico: Paciente de 12 años, de sexo masculino, con historia de artralgias de 3 años de evolución y xeroftalmia dudosa. El examen físico mostró leve congestión conjuntival, boca seca e hiperlaxitud de rodillas. Pruebas de laboratorio: hemograma y VHS normales, anticuerpos antinucleares (+) > 60, Ro (+) > 60 U, factor reumatoideo (+) 160 UI/ml. Se sospechó SS y se completó el estudio: test de Shirmer, que determinó ojo seco leve; gammagrafía de las glándulas salivales, que mostró disfunción de las glándulas submaxilares y parotídeas; biopsia de glándulas salivales, que mostró focos de infiltrado linfoide acinar y periductal. Se confirmó SS y se inició tratamiento con prednisona 7,5 mg/día e hidroxicloroquina 200 mg/día y tratamientos locales, con buena respuesta. Conclusiones: Los criterios diagnósticos del SS en adultos identifican solo al 39% de los pacientes pediátricos por la baja frecuencia de síntomas de sicca. Aún no existen criterios diagnósticos validados para niños. Un buen diagnóstico permitirá aliviar los síntomas, evitar complicaciones y detectar enfermedades asociadas.

Introduction: Sjögren’s syndrome (SS) is a chronic autoimmune disease that primarily affects the lacrimal and salivary exocrine glands. In children, it is a rare condition. Objective: To present the case of an adolescent with non-specific symptoms, but with a clinical suspicion of SS. Case report: A male 12-year old patient, with history of arthralgias for 3 years and suspicion of xerophthalmia. Physical examination showed mild conjunctival congestion, dry mouth and hypermobility of the knees. Laboratory work: blood count and ESR were normal, antinuclear antibodies (+) > 60, Ro (+) > 60 U, and rheumatoid factor concentration (+) 160 IU/ml. SS was suspected, and a study was carried out: Schirmer test determined mild dry eye, salivary gland scintigraphy showed parotid and submandibular gland dysfunction, and salivary gland biopsy reported focal lymphocytic acinar and periductal infiltration. SS was confirmed and treated with prednisone 7.5 mg/day and hydroxychloroquine 200 mg/day, and local treatment, with good response. Conclusions: The diagnostic criteria for SS in adults identified only 39% of pediatric patients, due to the low frequency of sicca symptoms. Still there are no validated diagnostic criteria for children. A good diagnosis will alleviate symptoms, prevent complications and detect associated diseases.

Hiposialia por activación de receptores de cannabinoides en la glándula submaxilar: revisión / Hyposialia by cannabinoid receptors activation in the submandibular gland: a review

El presente trabajo aporta evidencia de la presencia de receptores de cannabinoides en la glándula submaxilar de la rata, cuya expresión secircunscribe a componentes acinares y ductales. A su vez, los resultados expuestos confirman la participación de los receptores de cannabinoides en el control de la secreción salival, y por ende aportan una explicación empírica a la hiposialia observada luego del consumo de marihuana

The present study provides evidence for the presence of cannabinoid receptors in rat submandibular gland, whose expression is restricted to acinar and ductal components. In turn, the presented results confirm the involvement of cannabinoid receptors in the control of salivary secretion, and thus provide an empirical explanation to hyposialia observed after marijuana consumption.

Queixas fonoaudiológicas e verificação da fala de indivíduos com diagnóstico de ardência bucal e xerostomia / Complaints to oral functions and verification of the speech of individuals diagnosed with burning mouth and xerostomia

OBJETIVO: Investigar as queixas das funções orais em presença dos sintomas de ardência e secura bucal e analisar as alterações da fala em seu aspecto articulatório. MÉTODOS: Foram avaliados 66 indivíduos com idade entre 30 e 78 anos, divididos em três grupos: grupo ardência bucal, grupo xerostomia e grupo sem sintomas bucais. Foram realizadas entrevistas, exame clínico da cavidade oral e gravação da fala, com utilização de fichário evocativo. RESULTADOS: A característica comum nos dois primeiros grupos foi a presença do sintoma de secura bucal. Na localização dos sintomas, o grupo xerostomia apresentou maior quantidade de estruturas afetadas pelo sintoma. As queixas mais referidas por esse grupo foram cansaço e força na fala e força e engasgos à deglutição. A queixa de força foi significativa, na comparação com grupo de ardência bucal, com aumento do sintoma provocado pela função de fala. Dos sujeitos que se queixaram de boca seca, como sintoma principal, ou associado, a maioria apresentou ruídos durante a fala. O grupo xerostomia apresentou maior ocorrência desse ruído. Não foram evidenciadas alterações fonéticas nos grupos de sintomas bucais. CONCLUSÃO: Das queixas envolvendo as funções orais, falar e deglutir com força foram as mais referidas pelos indivíduos do grupo xerostomia. Observou-se a presença de estalidos na fala da maioria dos sujeitos com o sintoma de secura bucal. Apesar das sintomatologias apresentadas e do número de estruturas orais afetadas, não houve evidência de alteração fonética nos indivíduos com sintomas bucais.

PURPOSE: To investigate complaints related to oral functions in the presence of burning mouth and dry mouth, and analyze changes in the manner of articulation of speech. METHODS: There were 66 participants, age range 30-78 years, arranged in three groups: burning mouth group, xerostomia group, and group of individuals without oral symptoms. Interviews, as well as a clinical exam of the oral cavity and the recording of the subjects' speech based on a pre-set list of words, were carried out. RESULTS: Dry mouth was found as a common characteristic for the first two groups. Regarding symptom localization, the xerostomia group described a larger amount of structures affected by the symptom. The complaints that were most frequently reported by this group were tiredness and struggle to speak, and struggle and choke during deglutition. The struggle complaint was significant in comparison with the burning mouth group, and the symptom was aggravated in presence of speech. Most of the subjects reporting dry mouth either as the main symptom or as an associated symptom gave off clicks during speech. A higher incidence of those clicks was found in the xerostomia group. No evidence of phonetic changes were found in the symptomatic groups. CONCLUSION: Regarding the complaints involving the oral functions, struggle speaking and swallowing were the most frequently reported by the subjects in the xerostomia group. Clicks were found in the speech of the majority of the subjects with dry mouth. Despite the symptomatology identified and the number of affected oral structures. Despite the symptomatology and the number of affected oral structures, no evidence of phonetic changes in the individuals with oral symptoms.

Analysis of oral complications related to cancer therapy / Análise das complicações bucais relacionadas à terapia do câncer

The side effects and adverse reactions related to cancer therapies may cause significant alterations in the oral cavity, discomfort or even severe pain in parts of the body, patient’s nutritional deficiency, delay in the administration of oncologic drugs or dose limitation, an increase of hospitalization time and of the related expenses, as well as a decrease in the patient’s quality of life. Objective: The purpose of this study was to determine the deleterious effects of cancer therapies in the oral cavity. Material and methods: Data was gathered from medical records of the treatment of 643 cancer patients at the São José Hospital, in Joinville, state of Santa Catarina, from January to September 2012. Among the records selected for this study, 59.41% were female patients, with a mean age of 51 to 60 years. Results: Oral complications were reported in 72.47% of the patients, and the complication with the highest prevalence was mucositis (14.62%) followed by dry mouth (10.58%). Most of the patients had not received dental care prior to the cancer treatment, and no dental record was found. Conclusions: Several different oral disorders were re¬ported as a result of cancer treatment, and a significant number of patients needed dental evaluation prior to the treatment...

Os efeitos colaterais e as reações adversas relacionadas às terapias contra o câncer podem causar alterações significativas na cavidade oral e proporcionar desconforto ou mesmo dor nos locais de tratamento, carência nutricional do paciente, atraso na administração de medicamentos oncológicos ou de limitação de dose, aumento do tempo de internação e das despesas relacionadas, bem como uma diminuição da qualidade de vida do paciente. Objetivo: O objetivo deste estudo foi determinar os efeitos deletérios das terapias contra o câncer na cavidade bucal. Material e métodos: Os dados foram obtidos a partir dos prontuários de 643 pacientes que fizeram tratamento contra o câncer no Hospital Municipal São José, em Joinville, estado de Santa Catarina, de janeiro a setembro de 2012. Resultados: Nos registros do estudo, 59,41% eram pacientes do sexo feminino, com média de idade de 51 a 60 anos. As complicações bucais foram relatadas em 72,47% dos pacientes; a complicação de maior prevalência foi a mucosite (14,62%), seguida de xerostomia (10,58%). A maioria dos pacientes (71,85%) não havia recebido atendimento odontológico antes do tratamento do câncer. Conclusão: Diversos distúrbios bucais foram reportados como efeitos colaterais da terapia oncológica, e um número significativo de pacientes necessitou de avaliação odontológica antes do tratamento...