Aneurysmal Bone Cyst in the Anterior Region of the Mandible.

Aneurysmal bone cyst is a rare osteolytic lesion of uncertain etiology, commonly observed in the lower limbs, with only 1-2% of reports in gnathic bones. We present the case of a 27-year-old male patient referred to the oral and maxillofacial surgery and traumatology service due to complaints of paresthesia in the mental region and increased mandibular volume. Physical examination revealed midline shift and hard consistency. Imaging examinations demonstrated a radiolucent/hypodense lesion with disruption of the mandibular cortices. The histopathological examination of incisional biopsy material led to the diagnosis of a central giant cell lesion. The patient underwent surgical resection, and the histopathological analysis of the specimen revealed a predominantly solid lesion, characterized by blood-filled spaces of varying size, not covered by epithelium or endothelium, with the presence of spindle cells, multinucleated giant cells, and basophilic osteoid material, concluding the diagnosis of mixed-type aneurysmal bone cyst. Despite being uncommon, aneurysmal bone cysts should be considered in the differential diagnosis of volumetric increase in the gnathic bones of young patients.

Bone age and dental late effects in childhood cancer survivors: Radiographic findings in a Brazilian sample.

BACKGROUND: Changes in bone age and tooth development are late side effects of cancer therapy and can be identified by imaging examination. AIM: To evaluate the late effects of antineoplastic treatment on bone age and dental development in childhood cancer survivors. DESIGN: This is a retrospective case-control study on paediatric cancer survivors of both sexes who underwent antineoplastic treatment with 5-15 years of survival. Carpal radiographs were assessed for bone age and growth curve, and panoramic radiographs were used to evaluate dental development and alterations. Carpal radiographs were analyzed using the Greulich and Pyle inspection method, and the Martins and Sakima method was used to analyze the growth curve. All tests were applied with a confidence level of 95%. RESULTS: The study and control groups comprised 28 and 56 patients, respectively. There was no significant difference in bone age and growth curve between the study and control groups. Nonetheless, when sex was compared to chronological and bone ages, there was a significant difference in bone age (p = 0.019) and an underestimation in both groups and sexes in the Greulich and Pyle method. As to late dental effects, dental agenesia, microdontia, gyroversion, and unerupted teeth were found. Dental shape alterations mainly involve the root region. CONCLUSION: Close multidisciplinary collaboration is necessary during the follow-up period of young patients who have survived cancer.

A systematic review of the perspectives of botulinum toxin use on the quality of life of neurological patients with drooling.

OBJECTIVE: To investigate the effectiveness of botulinum toxin in the salivary glands of patients with neurological impairment and drooling and its impact on the quality of life. MATERIALS AND METHODS: This systematic review was registered with the International Prospective Register of Systematic Reviews (CRD 42,023,435,242) and conducted using the Preferred Reporting Items for Systematic Reviews and Meta-analyses. An electronic search was performed in the PubMed/MEDLINE, Embase, Scopus, Cochrane Library, and clinical trial databases until August 2023, no language restriction. Cohort studies and randomized clinical trials of patients diagnosed with drooling and neurological impairment who used botulinum toxin on the salivary gland were included, which evaluated subjective quality of life parameters. The risk of bias was assessed using the Joanna Briggs Institute Critical Appraisal Checklist and Risk of Bias 2 tools. The certainty of the evidence was analyzed using the Grading of Recommendations Assessment, Development, and Evaluation approach. RESULTS: Eight studies involving 317 patients were included. All studies, through subjective parameters, suggested the effectiveness of botulinum toxin in reducing drooling, resulting in an improvement in the quality of life. Three studies demonstrated improvements in swallowing and four in cases of respiratory diseases. Two clinical trials had a high risk of bias, whereas one had low risk. The five cohort studies that were evaluated had a high risk of bias. The certainty of the evidence was considered low. CONCLUSIONS: Based on the patient/caregivers' perception of improvement in drooling, dysphagia, and respiratory symptoms, it can be inferred that botulinum toxin application reduces subjective drooling in neurologically compromised patients. Its impact contributes to the general well-being and quality of life. CLINICAL RELEVANCE: Injection of botulinum toxin into the salivary glands can be considered an alternative technique to surgical or medicinal approaches in reducing drooling. It is effective, less invasive and without significant side effects. It promotes a positive impact on the well-being and quality of life of neurological patients.

Use of digital strategies in the diagnosis of oral squamous cell carcinoma: a scoping review.

Telediagnosis uses information and communication technologies to support diagnosis, shortening geographical distances. It helps make decisions about various oral lesions. The objective of this scoping review was to map the existing literature on digital strategies to assist in the diagnosis of oral squamous cell carcinoma. this review was structured based on the 5-stage methodology proposed by Arksey and O'Malley, the Joanna Briggs Institute Manual for Evidence Synthesis and followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews. The methods were registered on the Open Science Framework. The research question was: What digital strategies have been used to assist in the diagnosis of oral squamous cell carcinoma? The search was conducted on PubMed/MEDLINE, Scopus, Web of Science, Embase, and ScienceDirect. Inclusion criteria comprised studies on telediagnosis, teleconsultation or teleconsultation mediated by a professional and studies in English, without date restrictions. The search conducted in June 2023 yielded 1,798 articles, from which 16 studies were included. Telediagnosis was reported in nine studies, involving data screening through applications, clinical images from digital cameras, mobile phones or artificial intelligence. Histopathological images were reported in four studies. Both, telediagnosis and teleconsultation, were mentioned in seven studies, utilizing images and information submission services to platforms, WhatsApp or applications. One study presented teleconsultations involving slides and another study introduced teleconsultation mediated by a professional. Digital strategies telediagnosis and teleconsultations enable the histopathological diagnosis of oral cancer through clinical or histopathological images. The higher the observed diagnostic agreement, the better the performance of the strategy.

Creation of a self-guided course about oral cancer for Community Health Workers: A Teleeducation experience / Criação de um curso autoinstrucional sobre câncer de boca para Agentes Comunitários de Saúde: uma experiência de telemedicina

Abstract Objective: To report the experience of creating and providing a self-instructional course about oral cancer, in a Telehealth platform, to Community Health Workers, and to analyze the participants' clinic and demographic profile. Methods: Descriptive cross-sectional study of development and implementing experience of a course carried on a virtual learning environment, based on ADDIE, an Instructional Design model. The Kolmogorov-Smirnov test was applied, with 95% confidence level for quantitative variables. Results: The initial stage consisted of constructing the online course. In the second stage, the course was provided in a virtual learning environment. The course "Abre a boca, meu povo! - O que você precisa saber sobre o câncer de boca" was provided to the target audience with a student's guide, initial survey, four modules with video lessons, initial and final knowledge test, satisfaction evaluation and certificate. Simplicity, clarity and objectivity have been prioritised in the transmission of knowledge. The final sample comprised 205 Community Health Workers. The predominant profile consisted of professionals aged between 40 and 49 years, female, with more than 10 years of career. Conclusions: The course achieved its objectives, revealing a satisfactory number of professionals in its first edition.

Resumo Objetivo: Relatar a experiência da criação e disponibilização de curso autoinstrucional sobre câncer de boca, em plataforma de Telessaúde, para Agentes Comunitários de Saúde, e analisar o perfil clínico-demográfico dos participantes. Metodologia: Estudo transversal descritivo da experiência de implantação e desenvolvimento de curso realizado em ambiente virtual de aprendizagem, baseado em ADDIE, um modelo de Design Instrucional. Foi aplicado teste de normalidade de Kolmogorov-Smirnov, com 95% de confiança para variáveis quantitativas. Resultados: A primeira fase consistiu na construção do curso on-line. Na segunda fase, o curso foi disponibilizado em ambiente virtual de aprendizagem. O curso "Abre a boca, meu povo! - O que você precisa saber sobre o câncer de boca" foi disponibilizado ao público-alvo com um manual do aluno, enquete inicial, quatro módulos com videoaulas, testes de conhecimentos inicial e final, avaliação de satisfação e certificado. Simplicidade, clareza e objetividade foram priorizadas na transmissão dos conhecimentos. A amostra final foi composta por 205 Agentes Comunitários de Saúde. O perfil predominante foi de profissionais com idade entre 40 e 49 anos, do sexo feminino, com mais de 10 anos de carreira. Conclusões: O curso atingiu os objetivos propostos, revelando um quantitativo satisfatório de profissionais, em sua primeira edição.

Consentimento e esclarecimento: dever e direito à informação em odontologia / Consent and clarification: duty and right to information in dentistry / Consentimiento y aclaración: deber y derecho a la información en odontología

Resumo Estudos acerca do consentimento informado de paciente no âmbito da odontologia são escassos e apresentam divergências, evidenciando a necessidade de aprofundar o conhecimento sobre definições, dinâmica, atos normativos, jurisprudência e limites de responsabilidade diante de fatores diversos e riscos inerentes à profissão. Por meio de revisão bibliográfica que incluiu estudos indexados nas bases de dados SciELO e LILACS, bem como livros-texto, buscou-se definir o que se entende por consentimento livre e esclarecido do paciente, distinguir diferentes tipos e destacar a denominada "escolha esclarecida", considerando que a atividade do cirurgião-dentista é classificada como serviço e é regulamentada pela Constituição Federal de 1988, Código de Defesa do Consumidor, Código Civil e leis especiais. Diante disso, busca-se verificar se é possível melhorar a obtenção do consentimento informado do paciente, transformando-a em processo de escolha esclarecida que considere tratamentos adequadamente indicados cuja finalidade principal é a saúde.

Abstract Studies on informed patient consent in the field of dentistry are scarce and present divergences, highlighting the need to deepen knowledge about definitions, dynamics, normative acts, case law and limits of responsibility in the face of diverse factors and risks inherent to the profession. From a bibliographic review that included studies indexed in the SciELO and LILACS databases, as well as textbooks, this study aimed to define what is meant by a patient's free and informed consent, distinguish different types and highlight the so-called "informed choice," considering that the activity of the dental surgeon is classified as a service and is regulated by the 1988 Federal Constitution of Brazil, the Consumer Defense Code, the Civil Code and special laws. The aim is to see if it is possible to improve the process of obtaining informed consent from patients, transforming it into a process of informed choice that takes into account appropriately indicated treatments whose main purpose is health.

Resumen Los estudios del consentimiento informado del paciente en odontología son escasos y presentan divergencias, lo que revela la necesidad de profundizar en el conocimiento en definiciones, dinámicas, actos normativos, jurisprudencia y límites de responsabilidad frente a diversos factores y riesgos relacionados a la profesión. A partir de una revisión bibliográfica en las bases de datos SciELO y LILACS, y en libros, se buscó definir qué se entiende por consentimiento informado del paciente, distinguir diferentes tipos e identificar la llamada "decisión aclarada", considerando que la actividad del cirujano dental está clasificada como un servicio y reglamentada por la Constitución Federal de 1988, el Código de Defensa del Consumidor, el Código Civil y leyes especiales. Se busca identificar si es posible mejorar el consentimiento informado al convertirlo en un proceso de obtención de decisión aclarada que considere adecuadamente los tratamientos cuya principal finalidad sea la salud.

Genetic polymorphism of interleukins 6 and 17 correlated with apical periodontitis: A Cross-sectional study.

Interleukins 6 and 17 act in bone resorption in the presence of infections of endodontic origin for host defense. Genetic polymorphisms may be associated with increased bone loss, represented by areas of large periapical lesions. This study aimed to verify the frequency of interleukin 6 and 17 gene polymorphism in patients with asymptomatic apical periodontitis or chronic apical abscess and to verify the existence of correlations between periapical lesion area with age, gender, and presence of the polymorphism, in the studied population, in the state of Pernambuco. A population consisting of thirty diagnosed individuals was included. The area of the lesions was measured in mm². Genomic DNA was extracted and genotyping was performed by Polymerase Chain Reaction Restriction Fragment Length Polymorphism for interleukin 6 (rs 1800795) and interleukin 17 (rs 2275913). Fisher's exact, chi-square, and odds ratio tests were used. A logistic regression analysis was also performed using sex, age, and the presence of polymorphism as covariates, in addition to linear regression to test the relationship between age and lesion area. All tests used a significance level of 0.05% (p ≤0.05%). There was no statistical significance in the occurrence of large areas of periapical lesions correlated with age, sex, and diagnosis, nor in the distribution of alleles in the polymorphism of interleukins 6 and 17 in the studied groups. The frequency of homozygous and heterozygous polymorphism was high. The polymorphism of these interleukins is not correlated with the increase in the areas of asymptomatic periapical inflammatory lesions.

Genetic polymorphism of interleukins 6 and 17 correlated with apical periodontitis: A Cross-sectional study

Abstract Interleukins 6 and 17 act in bone resorption in the presence of infections of endodontic origin for host defense. Genetic polymorphisms may be associated with increased bone loss, represented by areas of large periapical lesions. This study aimed to verify the frequency of interleukin 6 and 17 gene polymorphism in patients with asymptomatic apical periodontitis or chronic apical abscess and to verify the existence of correlations between periapical lesion area with age, gender, and presence of the polymorphism, in the studied population, in the state of Pernambuco. A population consisting of thirty diagnosed individuals was included. The area of the lesions was measured in mm². Genomic DNA was extracted and genotyping was performed by Polymerase Chain Reaction Restriction Fragment Length Polymorphism for interleukin 6 (rs 1800795) and interleukin 17 (rs 2275913). Fisher's exact, chi-square, and odds ratio tests were used. A logistic regression analysis was also performed using sex, age, and the presence of polymorphism as covariates, in addition to linear regression to test the relationship between age and lesion area. All tests used a significance level of 0.05% (p ≤0.05%). There was no statistical significance in the occurrence of large areas of periapical lesions correlated with age, sex, and diagnosis, nor in the distribution of alleles in the polymorphism of interleukins 6 and 17 in the studied groups. The frequency of homozygous and heterozygous polymorphism was high. The polymorphism of these interleukins is not correlated with the increase in the areas of asymptomatic periapical inflammatory lesions.

Resumo As interleucinas 6 e 17 atuam na reabsorção óssea na presença de infecções de oriegem endodôntica para defesa do hospedeiro. Polimorfismos genéticos podem estar associados ao aumento da perda óssea, representada por áreas de lesões periapicais grandes. O objetivo deste estudo foi verificar a frequência do polimorfismo dos genes interleucina 6 e 17 em pacientes com periodontite apical assintomática ou abscesso apical crônico e verificar a existência de correlações entre área de lesão periapical com idade, sexo e presença do polimorfismo, na população estudada, no estado de Pernambuco. Foi incluída uma população constituída por trinta indivíduos diagnosticados. A áreas da lesões foram medidas em mm². O DNA genômico foi extraído e a genotipagem realizada por Polimorfismo de Comprimento de Fragmento de Restrição de Reação em Cadeia da Polimerase para interleucina 6 (rs 1800795) e interleucina 17 (rs 2275913). Os testes exato de Fisher, qui-quadrado e odds ratio foram utilizados. Uma análise de regressão logística também foi realizada usando sexo, idade e presença de polimorfismo como covariável, além de regressão linear para testar a relação da idade e área da lesão. Todos os testes utilizaram um nível de significância de 0,05% (p ≤0.05%). Não houve significância estatística na ocorrência das áreas grandes de lesões periapicais correlacionadas com idade, sexo e diagnóstico nem nas distribuições de alelos no polimorfismo das interleucinas 6 e 17 nos grupos estudados. A frequência de polimorfismo homozigoto e heterozigoto foi alta. O polimorfismo dessas interleucinas não está correlacionado ao aumento das áreas das lesões inflamatórias periapicais assintomáticas.

Perfil clínico-epidemiológico de pacientes pediátricos de um centro de oncohematologia de pernambuco / Clinical-epidemiological profile of pediatric patients at a center of oncohematology in Pernambuco / Perfil clínico-epidemiológico de pacientes pediátricos en un centro de oncohematología de Pernambuco

ntrodução:O câncer infantojuvenil corresponde a um grupo de várias doenças que têm em comum a proliferação descontrolada de células anormais e que pode ocorrer em qualquer local do organismo. Objetivo:Identificar os tipos de neoplasias mais frequentes na infância e adolescência e analisar o perfil clínico-epidemiológicodos pacientes. Metodologia:Estudo de transversal exploratório, de natureza aplicada com análise documental, realizado no Centro de Oncohematologia Pediátrica do Hospital Universitário Oswaldo Cruz, Recife, Pernambuco.Foram incluídos crianças e adolescentes diagnosticados com neoplasia e tratados por terapia antineoplásica.Os critérios de exclusão foram crianças e adolescentes normorreativas e/ou com doenças sistêmicas; prontuários ilegíveis ou com falta de informações clínicas.Resultados:Identificou-se que 54,21% dos pacientes eram dosexo feminino, seguido por 44,86% do sexo masculino.A faixa etária prevalente no estudo foi o de crianças de 5 a 14 anos (54,21%), ainda sobre o perfil dos pacientes, identificou-se que população autodeclarada como negra foi a mais prevalente representando 44,86% do total, seguido dos brancos com 43,93%. O diagnóstico que prevaleceu foi o de Leucemia Linfoide Aguda(23,36%), seguido pela Retinoblastoma (7,48%) e pela Rabdomiossarcoma embrionário (6,54%), e consequentemente o local da neoplasia primária que prevaleceu foi a Medula óssea (27,10%) seguido do olho (10,28%), deste total nota-se que o tratamento antineoplásico mais utilizado foi a quimioterapia (40,19%) seguido da quimioterapia associada à radioterapia(12,15%) e pela quimioterapia associada a cirurgia (10,28%). Conclusões:A leucemia linfoide aguda foi a neoplasia mais frequente na infância e adolescência, com prevalência na idade entre 5 e 14 anos, no sexo feminino e na etnia negra. A terapia antineoplásica mais utilizada foi a quimioterapia, seguida da associação entre quimioterapia e radioterapia (AU).

Introduction:Childhood cancer correspondsto a group of several diseases that have in common the uncontrolled proliferation of abnormal cells and that can occur anywhere in the body. Objective:Identify the most frequent types of neoplasms in childhood and adolescence and analyze the clinical-epidemiological profile of patients. Methodology:Exploratory cross-sectional study, applied in nature with document analysis, carried out at the Pediatric Oncohematology Center of Oswaldo Cruz University, Recife, Pernambuco. Children and adolescents diagnosed with neoplasia and treated with antineoplastic therapy were included. Exclusion criteria were normoreactive children and adolescents and/or with systemic diseases; illegible medical records or lacking clinical information. Results:It was identified that54.21% of the patients were female, followed by 44.86% male. The prevalent age group in the study was children from 5 to 14 years old (54.21%), still regarding the patients'profile , it was identified that the population self-declared as black was the most prevalent, representing 44.86% of the total, followed by of whites with 43.93%. The diagnosis that prevailed was Acute Lymphoid Leukemia (23.36%), followed by Retinoblastoma (7.48%) and Embryonic Rhabdomyosarcoma (6.54%), and consequently,the site of the primary neoplasm that prevailed was Bone marrow (27.10%) followed by the eye (10.28%), of this total it is noted that the most used anticancer treatment was chemotherapy (40.19%) followed by chemotherapy associated with radiotherapy (12.15% ) and chemotherapy associated with surgery (10.28%). Conclusions:Acute lymphoblastic leukemia was the most frequent neoplasm in childhood and adolescence, with a prevalence between 5 and 14 years of age, in females,and black ethnicity. The most used antineoplastic therapy was chemotherapy, followed by the association between chemotherapy and radiotherapy (AU).

ntroducción: El cáncer infantil corresponde a un grupo de varias enfermedades que tienen en común la proliferación descontrolada de células anormales y que pueden presentarse en cualquier parte del cuerpo. Objetivo: Identificar los tipos de neoplasias más frecuentes en la infancia y la adolescencia y analizar el perfil clínico-epidemiológico de los pacientes. Metodología: Estudio transversal exploratorio, aplicado en la naturaleza con análisis de documentos, realizado en el Centro de Oncohematología Pediátrica del Hospital Universitario Oswaldo Cruz, Recife, Pernambuco. Se incluyeron niños y adolescentes con diagnóstico de neoplasia y tratados con terapia antineoplásica. Los criterios de exclusión fueron niños y adolescentes normorreactivos y/o con enfermedades sistémicas; registros médicos ilegibles o carentes de información clínica. Resultados: Se identificó que el 54,21% de los pacientes eran del sexo femenino, seguido del 44,86% del masculino. El grupo etario prevalente en el estudio fueron los niños de 5 a 14 años (54,21%), en cuanto al perfil de los pacientes, se identificó que la población autodeclarada afrodescendiente fue la más prevalente, representando el 44,86% del total, seguido de los blancos con un 43,93%. El diagnóstico que predominó fue Leucemia Linfoide Aguda (23,36%), seguido de Retinoblastoma (7,48%) yRabdomiosarcoma Embrionario (6,54%), y en consecuencia el local de la neoplasia primaria que predominó fue Médula Ósea (27,10%) seguido de ocular (10,28%), de este total se destaca que el tratamiento anticancerígeno más utilizado fue la quimioterapia (40,19%) seguida de la quimioterapia asociada a radioterapia (12,15%) y la quimioterapia asociada a cirugía (10,28%). Conclusiones: La leucemia linfoblástica aguda fue la neoplasia más frecuente en la infancia y la adolescencia, con prevalencia entre los 5 y los 14 años, en el sexo femenino y en la etnia negra. La terapia antineoplásica más utilizada fue la quimioterapia, seguida de la asociación entre quimioterapia y radioterapia (AU).

ALDH1 expression and potential clinical implications in chronic inflammatory periapical lesions

Abstract: Aldehyde dehydrogenase 1 (ALDH-1) is a marker of stem cells in a variety of diseases, but its role in individuals with chronic inflammatory periapical lesions remains unknown. The aim of this study was to investigate the presence of cells with a stem cell profile based on the immunoexpression of ALDH-1 in periapical granulomas (PGs) and radicular cysts (RCs). A total of 51 cases of periapical lesions (25 PGs and 26 RCs) were subjected to immunohistochemical study. The anti-ALDH-1 antibody was applied using the immunoperoxidase technique. An immunoexpression score (intensity vs. percentage of cells) was used, with the cases being classified as low expression (score: 0 to 4) and high expression (score: 6 to 9). The Chi-square test was used with a 5% level of significance. Immunoexpression of ALDH-1 was detected in all cases of PGs and RCs. In PG cases, the expression was diffuse in connective tissue cells, with most cases exhibiting high expression (n = 18; 69.2%), while in RC cases the expression revealed focal distribution in cells of the capsule and epithelial cells of the cystic lining, with most cases classified as low expression (n = 18; 72%). Significant differences in the expression scores of ALDH-1 were observed in PGs (p = 0.003). The variable expression of ALDH-1 suggests the presence of cells with stem cell profiles in PGs and RCs. These findings suggest that periapical tissues infiltrated by chronic inflammation can recruit important cells for the repair or evolution of periapical lesions.

Tumores neurais na cavidade oral: estudo imuno-histoquímico / Neural tumors in oral cavity: immuno-histokymic study

Introdução: Os tumores neurais são lesões, que têm origem nos nervos periféricos e representam um percentual de 45% dos neoplasmas, que atingem a região de cabeça e pescoço. A alta incidência nessa área é justificada pela quantidade relativamente grande de terminações nervosas periféricas agrupadas. Ainda que sejam de mesma origem neural, sua heterogeneidade microscópica e patogenética lhes conferem um variado padrão de apresentação clínica e histopatológica, diferindo na sua forma de tratamento. O objetivo do presente estudo foi analisar, por meio da técnica imuno-histoquímica, a expressão das proteínas S100 e CD68 em tumores neurais, localizados na cavidade bucal de pacientes atendidos no Serviço de Patologia Bucal da Universidade de Odontologia de Pernambuco. Metodologia: Todos os casos referentes a tumores neurais do Serviço de Patologia oral e maxilofacial da Faculdade de Odontologia de Pernambuco foram revistos. Avaliaram-se dados relativos à idade, ao sexo e à localização anatômica. A técnica imunohistoquímica foi realizada por meio do método estreptavidina-biotina, utilizando-se os anticorpos anti: S100 e CD68. A análise foi feita de forma descritiva, conforme dados da pesquisa. Resultados: foram avaliados 23 casos de tumores neurais da cavidade bucal, 15 neurofibromas, 6 neuromas traumáticos, 1 neurilemoma e 1 neuroma encapsulado em paliçada. Verificou-se que a proteína S100 foi expressa em todos os casos estudados com positividade variada, e a proteína CD68 apresentou expressão positiva em 18 casos (neuroma traumático, neurofibroma). Conclusões: os tumores neurais da cavidade bucal foram considerados raros, visto que ocorreram em apenas 23 casos entre 5.761, ou seja, em 2,3% das lesões biopsiadas da FOP-UPE... (AU)

Introduction: Neural tumors are lesions that originate from peripheral nerves and represent a percentage of 45% of neoplasms that reach the head and neck region. The high incidence in this area is explained by the relatively large number of grouped peripheral nerve endings. Although they are of the same neural origin, their microscopic and pathogenetic heterogeneity give them a varied pattern of clinical and histopathological presentation, as well as differing in their form of treatment. The aim of the present study was to analyze by immunohistochemical technique the expression of S100 and CD68 proteins in neural tumors located in the oral cavity of patients treated at the Oral Pathology Service of the University of Dentistry of Pernambuco. Methodology: All cases referring to neural tumors of the Service of Oral and Maxillofacial Pathology of the School of Dentistry of Pernambuco were reviewed. Data regarding age, sex, and anatomical location were evaluated. The immunohistochemical technique was performed by the streptavidin-biotin method using the anti-S100 and CD68 antibodies. The analysis was made in a descriptive way according to the research data. Results: 23 cases of neural tumors of the buccal cavity, 15 neurofibromas, 6 traumatic neuromas, 1 neurilemoma and 1 palisade encapsulated neuroma were evaluated. It was verified that S100 protein was expressed in all the cases studied with varied positivity, and the CD68 protein showed positive expression in 18 cases (traumatic neuroma, neurofibroma). Conclusions: Neural tumors of the oral cavity were considered rare, since they occurred in only 23 cases among 5,761, that is, 2.3% of FOP-UPE biopsied lesions... (AU)

Desordens orais potencialmente malignas: um estudo de prevalência / Potentially malignant oral disorders: a prevalence study

Este estudo realizou a prevalência das desordens orais com potencial de transformação maligna diagnosticadas nos pacientes atendidos pela Clínica-Escola de Odontologia da Universídade Federal de Campina Grande. A pesquisa foi realizada nos prontuários arquivados dos pacientes atendidos na clínica-escola. Os pacientes diagnosticados com lesão foram convidadas a comparecerem novamente à clínica-escola para a realização do controle clínico. De um total de 2.706 prontuários, foram encontrados 131 pacientes com desordens orais, revelando uma prevalência de 4,84%. A queilite actínica foi a mais frequente com 68 (50,4%) casos, seguida da leucoplasia com 61 (45,2%). Homens corresponderam a 85 (64,9%) casos; o tipo de pele mais comum foi o feoderma com 64 (48,8%), e a média de idade dos pacientes foi de 45,11 anos. Também foi observado que 89 (68%) pacientes não realizaram o tratamento preconizado para a lesão e que o resultado histopatológico mais comum foi a hiperceratose com 11 (18%) casos, seguida da displasia epitelial leve com 5 (8,2%) ocorrências. Com relação ao controle clínico, apenas 33 (25,2%) pacientes retornaram, sendo 22 livres da doença. Diante do exposto, conclui-se que a prevalência das desordens encontradas foi semelhante à prevalência mundial e que existe uma grande evasão por parte dos pacientes no tratamento e no controle clínico... (AU)

This study evaluated the prevalence of oral disorders with potential malignant transformation diagnosed in the patients attended by the Clinical School of Dentistry of the Federal University of Campina Grande. The research was carried out from medical files of patients attended at the school-clinic. Patients diagnosed with an injury were called to attend the school clinic again for clinical control. From a total of 2,706 medical records, 131 patients with oral disorders were found, showing a prevalence of 4.84%. Actinic cheilitis was the most frequent with 68 (50.4%) cases, followed by leukoplakia with 61 (45.2%). Men corresponded to 85 (64.9%) cases, the most common skin type was feoderma with 64 (48.8%), and the mean age of the patients was 45.11 years. It was also observed that 89 (68%) patients did not perform the recommended treatment for the lesion, and that the most common histopathological result was hyperkeratosis with 11 (18%) cases, followed by mild epithelial dysplasia with 5 (8.2%) occurrences. Regarding the clinical control, only 33 (25.2%) patients returned, being 22 free of the disease. In view of the above, it is concluded that the prevalence of the disorders found was similar to the worldwide prevalence and that there is a great deal of evasion by the patients to the treatment and in the clinical control... (AU)

A multicenter study of biopsied oral and maxillofacial lesions in a Brazilian pediatric population

Abstract The aim of this study was to investigate the prevalence of oral and maxillofacial lesions among children from representative regions of Brazil. A retrospective descriptive study was conducted. Biopsy records comprising the period from 2000 to 2015 were obtained from the archives of three Brazilian oral pathology referral centers. A total of 32,506 biopsy specimens were analyzed, and specimens from 1,706 children aged 0-12 years were selected. Gender, age, anatomical location and histopathological diagnosis were evaluated. Descriptive statistics was carried out. Likelihood ratio tests were used to evaluate the association between the categorical variables. The level of significance was set at 0.05. The post-hoc test was used to identify the subgroups that significantly differed from one another, and the Bonferroni correction was applied. A total of 1,706 oral and maxillofacial lesions were diagnosed in pediatric patients, including 51.9% girls. Oral mucocele was the most prevalent reactive/inflammatory lesion (64%). The most commonly affected sites were the lips (34.5%) and mandible (19.9%). A significant association was observed between age and the group of lesions of the oral cavity (p < 0.001), and between age and anatomical location (p < 0.001). Pediatric oral and maxillofacial lesions were frequent and showed wide diversity, with the prevalence of mucocele. Knowledge of oral lesions is important for pediatric dentists worldwide, since it provides accurate data for the diagnosis and oral health of children.

Immunohistochemical expression of TGF-ß1 and MMP-9 in periapical lesions

Abstract The objective of this study was to evaluate the expression of matrix metalloproteinase 9 (MMP-9) and transforming growth factor beta (TGF-β1) in periapical lesion samples correlated with the intensity of the inflammatory infiltrate and thickness of the epithelial lining. Forty-five cases of periapical lesions (23 periapical granulomas and 22 radicular cysts) were subjected to morphological and immunohistochemical analyses using anti-MMP-9 and anti-TGF-β1 antibodies. The data were analyzed using the following tests: non-parametric Mann-Whitney, chi-square, Fisher's exact test and Spearman's correlation test (P<0.05). Analysis of inflammatory infiltrate revealed that 78% of periapical granulomas presented infiltrate grade III, in contrast with 32% of radicular cysts (P<0.001). Morphological evaluation of the epithelial thickness in radicular cysts revealed the presence of atrophic epithelium in 86% of the cysts. The immunostaining of MMP-9 was score 2 in 67% of the granulomas and 77% of the cysts. Both lesions were predominantly score 1 for TGF-β1. Significant differences were confirmed between the expression scores of TGF-β1 and MMP-9 in periapical granulomas (p = 0.004) and in radicular cysts (p < 0.001). Expression of TGF-β1 was different for periapical granulomas and radicular cysts. This immunoregulatory cytokine seems more representative in asymptomatic lesions. The extracellular matrix remodeling process dependent on MMP-9 seems to be similar for both periapical granulomas and radicular cysts. TGF-β1 and MMP-9 may play an important role in the maintenance of periapical lesions.

Impacto de uma experiência extensionista na formação universitária / Impact of an extension experience in university education

Este estudo teve como objetivo analisar o impacto do projeto de extensão universitária, Resgatando Sorrisos, na formação de estudantes do curso de Odontologia da FOP - UPE, nos anos de 2013 e 2014. Foram utilizados 02 questionários em momentos distintos, tendo como amostra 71 alunos. Foi utilizado o teste de hipótese estatística Wilcoxon para comparar as respostas de antes e depois da ação. Diante da elevada frequência de respostas, como "muitíssimo" e "bastante", observamos um alto grau de aceitação e entendimento da importância do projeto na formação do aluno, assim como no que se refere à capacidade de mudança que o projeto pode causar na vida dos pacientes e sua possível aplicabilidade no sistema público de saúde, dentre outras questões. Contudo, observa-se no ano de 2014 em quesito referente ao grau de expectativa inicial e satisfação final do projeto, uma diferença estatística entre a ida e a volta, p=o,o1. Conclui-se que os alunos apresentam um entendimento positivo em relação à ação extensionista, considerando-a importante para sua formação profissional e pessoal... (AU)

The aim of this study was to analyze the impact of the University Extension Project, ResgatandoSorrisos, in the graduation process of students of Dentistry course FOP - UPE in the years of 2013 and 2014. There were 02 questionnaires used, at different times, with a sample size 71 students. Wilcoxon statistical hypothesis test was used to compare responses before and after the action. Such high frequency responses of "vital" and "enough", a high degree of acceptance and understanding of the importance of the project in the formation of the student was observed, as well as the capacity of a change that the project may cause in the lives of patients and its possible applicability in the public health system, among other issues. However, in 2014, there was a statistical difference between the outward and return (p = o, o1) in a question referring to initial degree of expectation and ultimate satisfaction of the project. It was concluded that students have a positive understanding about the extension action, and they consider it important for their professional and personal training... (AU)

Evaluation of cariogenic antibacterial activity of mineral trioxide aggregate and Portland cement / Avaliação da atividade antibacteriana do MTA e do Cimento Portland sob bactérias cariogênicas

The objective of this study was to evaluate the antimicrobial activity of Mineral trioxide aggregate e Portland cement against some selected cariogenic bacteria.

Avaliar a atividade antimicrobiana do MTA e do cimento Portland sobre bactérias cariogênicas

Tooth Calcification in Low-Weight Human Fetuses / Calcificación de Dientes en Fetos Humanos de Bajo Peso

Tooth calcification begins during the intrauterine life and is related to the nutritional status of fetus. The purpose of this study was to evaluate the dental calcification status of 15 low-weight human fetuses aged from the 14th to 28th weeks of intrauterine life through radiographic analyses and von Kossa histochemical technique, which is specific to the detection of calcium and other mineral salts in tissues. After dissection of jaws, the mandibles were submitted to lateral and occlusal radiographies. Three mm thick slide sections of jaws samples were stained by conventional and von Kossa methods. As results, radiographic analysis did not exhibit any suggestive image of tooth mineralization, although rudiments of mandibular ossification could be noted. Hematoxilin and eosin sections revealed tooth germs in advanced phases of odontogenesis, but relative delay in tooth development was observed. The von Kossa staining did not show any positivity to the deposition of mineral salts in tooth germs from maxilla and mandible, supporting our findings related to the delay of dental development that was found in studied sample. Hence, we suggest that there is relation between the fetal low-weight and the calcification and maturation status of teeth.

La calcificación del diente comienza durante la vida intrauterina y se relaciona con el estado nutricional del feto. El propósito de este estudio fue evaluar el estado de calcificación dental de 15 fetos humanos de bajo peso entre las 14 y 28 semanas de vida intrauterina mediante análisis radiográficos y técnica histoquímica von Kossa, específica para la detección de calcio y otras sales minerales en los tejidos. Después de su disección, las mandíbulas fueron sometidas a radiografías laterales y oclusales. Secciones de 3 mm de espesor de las mandibulas fueron teñidas con la técnica Von Kossa. El análisis radiográfico no mostró ninguna imagen sugerente de mineralización dentaria, aunque rudimentos de la osificación mandibular podrían tenerse en cuenta. Las secciones de H-E revelaron la presencia de los gérmenes dentarios en las fases avanzadas de odontogénesis, pero con un retraso relativo en el desarrollo normal. La tinción de von Kossa no mostró positividad a la deposición de sales minerales en gérmenes dentarios, lo que apoya nuestros hallazgos relacionados con el retraso de desarrollo dental que se encontró en la muestra estudiada. Se sugiere que existe relación entre el bajo peso del feto y el estado de calcificación y maduración de los dientes.

Correlação do Papilomavírus Humano com o Carcinoma Epidermoide Bucal: revisão sistemática / Correlation of Human Papillomavirus with Oral squamous cell carcinoma: Systematic Review

Objetivo: Verificar através de revisão sistemática da literatura a correlação entre o Papilomavírus Humano (HPV) e o Carcinoma Epidermóide Bucal. Método: Busca ativa nas bases de dados LILACS, MEDLINE, PubMed e SciELO através dos descritores: "Carcinoma Epidermóide Bucal" (Oral carcinomas e carcinoma oral de células escamosas) e "Papilomavírus Humano" (Human Papillomavirus e Virus del Papiloma Humano) entre janeiro de 2000 até fevereiro de 2014 nas línguas Portuguesa, Inglesa e Espanhola. Resultados: Nos estudos analisados, o tipo de HPV mais prevalente é o de baixo risco (6 e 54) e o de alto risco (16), sendo encontrado em lesões localizadas na língua e assoalho de boca em pacientes do sexo masculino, faixa etária acima de 60 anos e não-tabagistas. Conclusões: São necessários estudos que permitam considerar o HPV como agente causal do carcinoma epidermoide bucal, pois, na literatura, a presença de diversos carcinógenos, atuando concomitantemente, impede conclusões precisas e apontam para uma ação sinérgica do HPV com outros carcinógenos que, de fato, potencializaria o desenvolvimento de uma neoplasia maligna... (AU)

Objective: To determine through a systematic review of the literature the correlation between the Human Papillomavirus (HPV) and oral squamous cell carcinoma . Method: Active search in the databases LILACS, MEDLINE , PubMed and SciELO using the descriptors : "Oral squamous cell carcinoma" and " Human Papillomavirus " between January 2000 until February 2014 in Portuguese, English and Spanish . Results: In the studies reviewed, the most prevalent type of HPV is low risk (6 e 54) and high risk (16), being found in lesions on the tongue and floor of mouth in male patients , age over 60 years and nonsmokers. Conclusions: Studies are needed that allow consider HPV as the causative agent of oral squamous cell carcinoma, because in the literature the presence of several carcinogens , acting concurrently , prevents accurate conclusions and point to a synergistic action between HPV and other carcinogens that actually potentiate developing a malignancy... (AU)