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The aim of the study was to assess knowledge of HIV/AIDS and the clinical and sexual practices of dental students. This was a cross-sectional study in which a self-administered questionnaire about age, gender, and dental program term; knowledge of HIV/AIDS transmission and prevention; use of personal protective equipment; prevention and occurrence of accidental exposure to biological material; post-exposure conduct; and sexual behavior was answered by dental students (n = 148, answer rate of 91.9%). Descriptive and inferential statistical analyses (chi-square and Fisher's exact tests) were performed, at a significance level of 5%. Students correctly recognized the routes of HIV transmission, including “blood” (100%), “sexual.3%). Regarding frequency of condom use during sexual intercourse, 37% of dental students said “always,” 55.5% “sometimes” and 7.6% “never”. Regarding clinical practices, 99.3% of dental students said they used personal protective equipment, 28.4% had intercourse” (99.3%), “vertical transmission” (58.1%) and “sharing contaminated material” (94.6%), and ways of prevention, including “condom use” (100%) and “not sharing needles and syringes” (99suffered percutaneous injuries, the needle was the most cited exposure agent (32.5%) and in most cases (54.8%), no providences were taken after the accident. In conclusion, the students had good knowledge of HIV / AIDS and appropriate preventive attitudes in clinical care and handling of sharp instruments; however, they still need to be motivated with regard to condom use and oriented about care after accidental exposure to biological material. The aim of the study was to assess knowledge of HIV/AIDS and the clinical and sexual practices of dental students. This was a cross-sectional study in which a self-administered questionnaire about age, gender, and dental program term; knowledge of HIV/AIDS transmission and prevention; use of personal protective equipment; prevention and occurrence of accidental exposure to biological material; post-exposure conduct; and sexual behavior was answered by dental students (n = 148, answer rate of 91.9%). Descriptive and inferential statistical analyses (chi-square and Fisher's exact tests) were performed, at a significance level of 5%. Students correctly recognized the routes of HIV transmission, including “blood” (100%), “sexual.3%). Regarding frequency of condom use during sexual intercourse, 37% of dental students said “always,” 55.5% “sometimes” and 7.6% “never”. Regarding clinical practices, 99.3% of dental students said they used personal protective equipment, 28.4% had intercourse” (99.3%), “vertical transmission” (58.1%) and “sharing contaminated material” (94.6%), and ways of prevention, including “condom use” (100%) and “not sharing needles and syringes” (99suffered percutaneous injuries, the needle was the most cited exposure agent (32.5%) and in most cases (54.8%), no providences were taken after the accident. In conclusion, the students had good knowledge of HIV / AIDS and appropriate preventive attitudes in clinical care and handling of sharp instruments; however, they still need to be motivated with regard to condom use and oriented about care after accidental exposure to biological material.

Background Developmental enamel defects (DDE) represent one of the prevalent oral problems in childhood; however, few studies have evaluated its impact on quality of life in the children's own perception. Aim To evaluate the DDE impact on quality of life of 5-year-old children. Methods This cross-sectional observational study assessed 566 children aged 5 years old, in Teresina, Piaui, Brazil, according to their self-perceptions. Children answered the Pediatric Quality of Life Inventory™ Version 4.0 and Oral Health Scale. The dmft index, modified DDE index and Foster and Hamilton criteria were used to diagnose dental caries, DDE and malocclusion, respectively. A single examiner performed the clinical examination. Descriptive analyses and Poisson regression with robust variance were performed. Results The prevalence of DDE was 33.7%. For children's self-reports, the presence of DDE had a negative association with oral health-related quality of life (OHRQoL; PR 1.09, 95% CI 1.02-1.15). Enamel hypoplasia had a negative impact on the physical function (PR 1.05; 95% CI 1.01-1.10) and oral health (PR 1.06, 95% CI 1.01-1.11) domains. Diffuse opacity had a negative impact on the social aspect (PR 1.09, 95% CI 1.02-1.18). Conclusions Enamel defects had a negative impact on OHRQoL according to the self-reports of the children.

O linfoma de Burkitt é um raro e agressivo tipo de linfoma não-Hodgkin pobremente diferenciado. O presente relato trata de uma criança do sexo masculino, com sete anos de idade, que foi examinada na Clínica de Odontopediatria do Departamento de Odontologia da UFRN, exibindo uma massa tumoral na região de pré-molares mandibulares com mobilidade dentária. O exame radiográfico revelou uma área radiolúcida difusa e o diagnóstico histopatológico foi de linfoma de Burkitt. O paciente foi tratado por poliquimioterapia e obteve completa remissão da patologia.

SummaryBurkitt's lymphoma is a poorly differentiated rare and aggressive type of non-Hodgkin's lymphoma. This article reports the case of a male child aged seven years, who was examined at the Odontopediatric Clinic of the UFRN Dentistry Department. The patient presented a tumor in the premolar region of the mandible; teeth were mobile in this region. Radiology revealed a diffuse radioluscent area which was diagnosed histopathologically as Burkitt's lymphoma. The patient was treated with polychemotherapy; complete remission of the disease was attained.

Background: Viral hepatitis B (VHB) is an occupational risk for dentists. It is necessary that dental students start clinical practice immunized with the vaccine, response monitored and informed about the means of transmission of the disease. Rarely, there are studies, which evaluate concomitantly knowledge of these academics and their vaccine situation? Objectives: To evaluate the knowledge about Hepatitis B, the vaccine situation and the immunization status of dental students and to investigate the probable correlation between the status of immunization, vaccination membership and adherence to the test of seroconversion and associated factors. Patients and Methods: 189 students from the dentistry course at the Federal University of Piaui (UFPI) who attended from the 3rd to 9th period were invited to participate in the research. Their knowledge about HBV, attitude regarding protection and their vaccine situation were assessed through a self-administered form. Antibodies against surface antigens of Hepatitis B virus (Anti-HBs) and against the antigens of the virus nucleous of Hepatitis B (Anti-HBc total) were measured qualitatively using the enzyme-linked immunosorbent assay (ELISA). Results: Of the 179 students surveyed, 58.1% knew about the degree of virulence of the Hepatitis B virus (HBV). As to the means of transmission, 98.3% considered blood transmission, 82.6% plates and cutlery, 15.6% cough and 12.3% vertical transmission. Most students (87.4%) knew that they should take 3 doses of the vaccine and 62.2% completed the immunization schedule. A minority of students (48.6%) knew the about the Anti-HBs test and 5.6% took the test. Among the students who reported having taken three doses of the vaccine, 12.5% were not seroconverted. There was no significant correlation between the variables. Conclusions: Dental academics were unsure about the means of infection and prevention against HBV. Many of them had not completed the immunization scheme and did not have the test of seroconversion. The serological analysis revealed unprotection, even after students completed the vaccination schedule.

INTRODUCTION: Many people suffering from mental disorders fail to adequately perform self-care, especially in relation to personal hygiene and in particular to oral hygiene. For these individuals, the prevention and ongoing clinical monitoring are essential. OBJECTIVE: To investigate the oral diseases that most affect patients with mental disorders attended in the Dental College of the Federal University of Piauí (UFPI). METHODOLOGY: Patients treated during the 2nd half of 2011 and 1st half of 2012 were examined. The DMFT index was used for evaluation of dental caries and the CPI index for periodontal evaluation. The statistical analyzes were performed with SPSS (Statistical Package for the Social Sciences), version 18.0, using a descriptive statistics to determine averages, standard deviations and frequencies. RESULT: 67.50% of the 40 patients had contact with the surgeon dentist for over one year, 95% performed their own oral hygiene and 70% did not use dental floss. The average of DMFT was 14.18. Of the patients, 49.13% needed of restorations of one surface and 60% needed dental prosthesis. Moreover, 33.75% of sextants evaluated had periodontal pockets. CONCLUSION: It can be noticed that patients with mental illness have a high risk of developing oral disorders, however, few carriers visite a dental professional regularly. In addition, the delay to seek treatment and lack of staff training, lead to solutions often crippling. INTRODUÇÃO: Muitas pessoas acometidas por transtornos mentais não conseguem realizar o auto cuidado adequadamente, principalmente em relação à higiene pessoal e em particular à higiene oral. Para esses indivíduos, a prevenção e o acompanhamento clínico contínuo são fundamentais. OBJETIVO: Investigar as afecções bucais que mais afetam os pacientes portadores de transtornos mentais, atendidos na faculdade de odontologia da Universidade Federal do Piauí (UFPI). METODOLOGIA: Pacientes atendidos durante o 2º semestre de 2011 e 1º semestre de 2012 foram examinados. O índice CPOD foi utilizado para avaliação da cárie dentária e o índice CPI para avaliação periodontal. As análises estatísticas foram feitas no Programa SPSS (Statistical Package for the Social Sciences), versão 18.0, utilizando-se da estatística descritiva na determinação de médias, desvio-padrão e frequências. RESULTADO: 67,50% dos 40 pacientes tiveram contato com o cirurgião-dentista há mais de um ano, 95% realizavam a própria higiene oral e 70% não usavam fio dental. A média do CPOD foi de 14,18. 49,13% dos pacientes necessitavam de restaurações de uma superfície e 60% necessitavam de prótese dentária. Além disso, 33,75% dos sextantes avaliados apresentavam bolsa periodontal. CONCLUSÃO: Pode-se perceber que os portadores de doença mental apresentam um elevado risco de desenvolver desordens orais, entretanto, poucos portadores visitam um profissional da odontologia com regularidade. Além disso, a procura tardia por tratamento e a falta de preparo dos profissionais, levam a soluções muitas vezes mutiladoras.

OBJETIVO: O propósito deste estudo foi avaliar a proliferação celular de ameloblastomas antes e depois de submetidos à técnica cirúrgica da marsupialização.MÉTODOS: quatro casos de ameloblastomas submetidos à marsupialização foram examinados imuno-histoquimicamente para a expressão do antígeno nuclear de proliferação celular (PCNA) e da proteína p53, em dois momentos do tratamento: na cirurgia inicial de descompressão e na subseqüente enucleação. RESULTADOS: Observamos que a reatividade imuno-histoquímica para o PCNA e proteína p53, após a marsupialização, diminuiu em dois casos e aumentou em dois dos espécimes estudados. CONCLUSÃO: A marsupialização em ameloblastomas nem sempre é capaz de causar redução na atividade proliferativa das células tumorais.

Objective To evaluate the immunohistochemical expression of MMP-1, -2, -7, -9 and -26 in oral squamous cell carcinomas (SCCs) according to tumour site and histological grade of malignancy. Study design Fifteen cases of SCC of the lower lip and 15 cases of tongue SCC were selected and divided into low grade malignancy (n = 17) and high grade malignancy (n = 13). Results Higher immunohistochemical expression of MMPs by neoplastic cells was observed in tongue SCCs, with a statistically significant difference for MMP-9 (P

Diversos estudios han demostrado la asociación de trombocitopenia con la ocurrencia de sangrado en pacientes con neoplasias malignas, estados de inmunosupresión o el uso de medicamentos. En el presente estudio se evaluó la ocurrencia de sangrado oral espontáneo en 40 niños con neoplasias malignas y si existía relación entre esta complicación estomatológica con el tipo de neoplasia, tratamiento y el conteo plaquetario. Dos niños con leucemia linfoblástica aguda y 4 con leucemia mieloblástica aguda desarrollaron conjuntamente 10 episodios de sangrado oral espontáneo, principalmente en la gingiva, coincidiendo la mayoría de éstos con periodos de trombocitopenia. El test exacto de Fisher no mostró diferencia estadísticamente significativa en la ocurrencia de sangrado oral espontáneo entre los niños con neoplasias sistémicas y aquéllos con tumores sólidos (p = 0.067); sin embargo, estadísticamente, los niños con neoplasias sistémicas y con trombocitopenia tuvieron mayor riesgo de presentar esa complicación (OR = 10.93 y OR = 8.077 respectivamente). El sangrado coincidió con el uso acentuado metotrexato y la citarabina. Concluimos que el riesgo de sangrado oral espontáneo en niños con neoplasias malignas es alto, sobre todo en aquéllos acometidos por neoplasias sistémicas. Por otro lado, la presencia de sangrado oral espontáneo puede ser considerada como un indicio precoz de trombocitopenia severa en esos pacientes.

A infecção genital pelo papilomavírus humano (HPV) corresponde a uma das doenças sexualmente transmissíveis mais frequentes no mundo. Uma preocupação dos pacientes que apresentam HPV na região anogenital diz respeito à possibilidade de disseminação desse vírus para outras partes do corpo. O objetivo geral desse estudo foi avaliar a possível correlação existente entre infecções pelo HPV na mucosa oral e no colo uterino em mulheres com sorologias positiva e negativa para o HIV. Pretendeu-se, também, identificar variáveis clínicas, demográficas e laboratoriais associadas à infecção oral pelo HPV. A amostra foi constituída por 200 pacientes do gênero feminino, sendo 100 com sorologia positiva para HIV (grupo 1) e 100 com sorologia negativa para HIV (grupo 2). As pacientes foram incluídas consecutivamente no Centro de Referência e Treinamento em DST-AIDS entre abril de 2008 a maio de 2009. Todas as pacientes assinaram um Termo de Consentimento Livre e Esclarecido e responderam a uma ficha com questionamentos sobre hábitos e comportamento sexual. Além disso, tiveram as cavidades oral e ginecológica examinadas, sendo que células superficiais de ambos os locais foram coletadas e avaliadas pela captura híbrida 2 e pela citologia em base líquida. Para comparação de variáveis qualitativas, como freqüências e proporções, foi utilizado o teste de qui-quadrado ou exato de Fisher, se necessário. Para comparação de dados quantitativos, foram utilizados os testes de Mann-Whitney ou t de Student. A análise multivariada foi executada utilizando-se o teste de regressão logística, sendo que o valor de significância estatística estabelecido foi de 5% (p