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1.
Braz. dent. j ; 34(5): 22-28, Sept.-Oct. 2023. tab, graf
Article in English | LILACS-Express | LILACS, BBO | ID: biblio-1528008

ABSTRACT

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.

2.
Rev. Ciênc. Plur ; 9(1): 27811, 27 abr. 2023. tab
Article in Portuguese | LILACS, BBO | ID: biblio-1428113

ABSTRACT

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).


Subject(s)
Humans , Male , Female , Child , Adolescent , Health Profile , Precursor Cell Lymphoblastic Leukemia-Lymphoma/pathology , Neoplasms/epidemiology , Antineoplastic Agents/therapeutic use , Medical Records , Cross-Sectional Studies/methods , Document Analysis , Hospitals, Pediatric
3.
Braz. oral res. (Online) ; 36: e019, 2022. tab, graf
Article in English | LILACS-Express | LILACS, BBO | ID: biblio-1360250

ABSTRACT

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.

4.
Rev. cir. traumatol. buco-maxilo-fac ; 19(4): 7-12, out.-dez. 2019. ilus, tab
Article in Portuguese | LILACS, BBO | ID: biblio-1253605

ABSTRACT

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)


Subject(s)
Humans , Male , Female , Pathology, Oral , Peripheral Nerves , Immunohistochemistry , S100 Proteins , Incidence , Neoplasms , Dentistry , Mouth , Nerve Endings
5.
Rev. cir. traumatol. buco-maxilo-fac ; 18(2): 6-15, abr.-jun. 2018. ilus, tab
Article in Portuguese | BBO, LILACS | ID: biblio-1254757

ABSTRACT

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)


Subject(s)
Humans , Male , Female , Pathology, Oral , Cheilitis , Cross-Sectional Studies , Lichen Planus, Oral , Dentistry , Leukoplakia , Wounds and Injuries
6.
Braz. oral res. (Online) ; 32: e20, 2018. tab
Article in English | LILACS | ID: biblio-889492

ABSTRACT

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.


Subject(s)
Humans , Male , Female , Infant , Child , Mandibular Diseases/epidemiology , Mouth Diseases/epidemiology , Age Distribution , Biopsy , Brazil/epidemiology , Mandibular Diseases/pathology , Mouth Diseases/pathology , Mouth Mucosa/pathology , Mucocele/epidemiology , Mucocele/pathology , Prevalence , Retrospective Studies , Sex Distribution
7.
Braz. oral res. (Online) ; 31: e51, 2017. tab, graf
Article in English | LILACS | ID: biblio-952089

ABSTRACT

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.


Subject(s)
Humans , Male , Female , Adult , Periapical Granuloma/metabolism , Radicular Cyst/chemistry , Matrix Metalloproteinase 9/analysis , Transforming Growth Factor beta1/analysis , Periapical Granuloma/immunology , Periapical Granuloma/pathology , Biopsy , Severity of Illness Index , Immunohistochemistry/methods , Radicular Cyst/immunology , Radicular Cyst/pathology , Statistics, Nonparametric , Epithelial Cells/pathology
9.
Rev. cir. traumatol. buco-maxilo-fac ; 16(1): 39-44, Jan.-Mar. 2016. ilus, tab
Article in Portuguese | LILACS, BBO | ID: lil-797869

ABSTRACT

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)


Subject(s)
Humans , Male , Female , Students, Dental , Health Services Coverage , Community-Institutional Relations , Education, Dental , Public Health
10.
RGO (Porto Alegre) ; 63(2): 181-186, Apr.-June 2015. tab
Article in English | LILACS | ID: lil-755125

ABSTRACT

OBJECTIVE:

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

METHODS:

Wells were made of approximately 0.5 mm in diameter, in solid culture media and immediately filled with cement. Twelve samples of each material were obtained for the realization of the agar diffusion method. These samples were tested with Streptococcus mutans(ATCC 700610), Enterococcus faecalis (ATCC 29212), Lactobacillus acidophilus (UFV) and Lactobacillus casei (UNICAMP). Petri plates containing Tripticase soy Agar (TSA) were used for the growth of Streptococcus mutans and Enterococcus faecalis, and plates of Man Rogosa & Sharpe Agar (MRS) for the Lactobacillus acidophilus and Lactobacillus casei. After 48 hours of incubation, it was made the measurement of inhibition halos with the aid of manual caliper.

RESULTS:

The diameters obtained to MTA (2.50 ± 0.00; 2,92 ± 0.63; 2.58 ± 0.38), PC (1.17 ± 0.29; 2.00 ± 0.43; 1.33 ± 0.14) and calcium hydroxide cement (3.83 ± 0.29; 3.00 ± 0.00 ± 2.58 ± 0.72) were expressed in millimeters and subsequently submitted to Tukey test (p<0.05).

CONCLUSION:

According to the results obtained, it was concluded that the MTA and Portland cement showed to have similar antimicrobial properties, however these were not effective against the Enterococcus faecalis.

.

OBJETIVO

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

MÉTODO

Poços foram confeccionados e imediatamente preenchidos com os materiais. Doze amostras de cada material foram obtidas para realização do método de difusão em Ágar. As amostras foram testadas com o Streptococcus mutans (ATCC 700610), Enterococcus faecalis (ATCC 29212), Lactobacillus acidophilus (UFV) and Lactobacillus casei (UNICAMP). Placas de petri contendo Ágar Tripticase de Soja (MERCK) foi utilizado para o Streptococcus mutans e o Enterococcus faecalis e o meio Ágar Man Rogosa Sharpe (MRS) para os o Lactobacillus acidophilus e Lactobacillus casei. Depois de 48 horas de incubação foram realizadas as medidas dos halos de inibição com o auxílio de um paquímetro manual

RESULTADOS

Os diâmetros obtidos do MTA (2.50 ± 0.00; 2,92 ± 0.63; 2.58 ± 0.38), CP (1.17 ± 0.29; 2.00 ± 0.43; 1.33 ± 0.14) e cimento de hidróxido de cálcio (3.83 ± 0.29; 3.00 ± 0.00 ± 2.58 ± 0.72) foram expressos em milímetros e submetidos ao teste de Tukey (p 0.05)

CONCLUSÃO

De acordo com os resultados obtidos concluiu-se que o MTA e o cimento Portland demonstraram possuem propriedades antimicrobianas semelhantes, porém não foram efetivos contra o Enterococcus faecalis

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11.
Int. j. odontostomatol. (Print) ; 8(2): 229-234, set. 2014. ilus
Article in English | LILACS | ID: lil-722893

ABSTRACT

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.

12.
Rev. cir. traumatol. buco-maxilo-fac ; 14(2): 95-102, Abr.-Jun. 2014. ilus, tab
Article in Portuguese | LILACS, BBO | ID: lil-792336

ABSTRACT

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)


Subject(s)
Humans , Mouth Neoplasms , Papillomavirus Infections , Squamous Cell Carcinoma of Head and Neck , Papillomaviridae , Carcinogens , Mouth , Mouth Floor
13.
Rev. cir. traumatol. buco-maxilo-fac ; 13(4): 89-94, Out.-Dez. 2013. ilus, tab
Article in Portuguese | LILACS, BBO | ID: lil-792303

ABSTRACT

A metaloproteinase-9 (MMP-9) ou gelatinase B pertence à família das metaloproteinases da matriz, enzimas que degradam componentes da matriz extracelular (MEC) e da membrana basal e estão implicadas no processo de carcinogênese, contribuindo para a progressão tumoral, invasão e metástase. Neste trabalho, a MMP-9 foi utilizada como marcador imuno-histoquímico, a fim de correlacionar sua expressão com a gradação histológica de 28 casos de carcinoma de células escamosas oral (CCEO) obtidos do Laboratório de Patologia Bucal da Faculdade de Odontologia de Pernambuco (FOP/UPE). As amostras foram classificadas quanto ao grau de malignidade em carcinoma in situ, baixo grau, grau moderado e alto grau de malignidade. A técnica imuno-histoquímica foi realizada através do método estreptavidina-biotina, utilizando o anticorpo anti-MMP9. Na análise estatística, foi utilizado o teste Exato de Fischer, com nível de significância de p=0.05. Verificou-se que a MMP-9 apresentou positividade em 24 casos (85.7%) de CCEO, sendo observada correlação estatisticamente significativa entre a expressão da MMP-9 e o grau de malignidade (p=0.002). Os resultados indicam que a expressão da MMP-9 pode ser sugerida como fator preditivo de comportamento biológico agressivo no CCEO... (AU)


The metalloproteinase-9 (MMP-9) or gelatinase B belongs to the family of matrix metalloproteinases, enzymes which degrade extracellular matrix (ECM) and basement membrane components and are implicated in the carcinogenesis process, contributing to tumor progression, invasion and metastasis. In this work, MMP-9 was used as an immunohistochemical marker in order to correlate its expression with histological grading of 28 cases of oral squamous cell carcinoma (OSCC) obtained from the Laboratory of Oral Pathology, School of Dentistry of Pernambuco (FOP / UPE). The samples were classified according to the malignancy grade as in situ carcinoma, low grade, intermediate grade and high grade of malignancy. The immunohistochemistry technique was performed by the streptavidin-biotin method using the antibody anti-MMP9. The statistical analysis used the Fisher's exact test, with a significance level of p=0.05. It was verified that MMP-9 expression was positive in 24 OSCC cases (85.7%). Significant statistical correlation was observed between the expression of MMP-9 and the degree of malignancy (p=0.002). The results indicate that expression of MMP-9 may be suggested as a predictor of aggressive biological behavior in OSCC... (AU)


Subject(s)
Humans , Male , Female , Mouth/pathology
14.
Int. j. morphol ; 30(3): 1100-1105, Sept. 2012. ilus
Article in English | LILACS | ID: lil-665533

ABSTRACT

Many of Glycobyological aspects of human development remain still unclear, mainly in oral science, and this could be observed in a lack of literature with few and old papers about this subject. During tooth histo-morphogenesis changes occur in basement membrane composition, expression of signaling molecules and in localization of cell surface components, where glyco components could be involved. In this sense, this work aimed to analyze the ConA ligands commonly founded in glycoproteins cores and UEA-I ligands since fucolization is a Key event in many physiological and pathological processes. Therefore 15 jaws of human fetuses were ethically obtained, histologicaly processed and then submitted to lectin histochemistry with appropriated controls. The results showed that lectins staining increase their intensity during dental development; ConA only starts to recognize glucose/mannose residues on ectomesechymal cells in the crow phase revealing its ligands when the enamel matrix starts to be secreted. Interestingly, Con A ligands were not founded in the basement membrane of the stratum intermedium of the enamel differing from rodents models. The staining pattern of UEA-I was different, starting to be positive in the ectomesenchyma since the bud stage and shown variable expression in cell type and staining intensity, which appeared be directly proportional to the progress of odontogenesis. Thus, this work shows that Con A and UEA-I exhibit a growing staining directly proporcional to ameloblasts and odontoblasts cytodiferenciation and revels some glycan differences between human odontogenesis and rodents models...


Los aspectos glicobiológicos del desarrollo humano siguen siendo poco investigados, sobre todo en odontología, y esto puede ser observado en la literatura por los escasos y antiguos artículos sobre el tema. Durante la histomorfogénesis del diente se producen cambios en la composición de la membrana basal, en la expresión de moléculas de señalización y en la localización de la superficie celular de los componentes, donde los glico componentes podrían estar involucrados. Este trabajo tuvo como objetivo analizar los ligandos de la ConA ya que glucosa/manosa son comúnmente encontrados en núcleos de glicoproteínas y ligandos de la UEA-I debido a fucolización es un evento clave en muchos procesos fisiológicos y patológicos. Fueron obtenidas 15 mandíbulas de fetos humanos, procesadas y tratadas mediante histoquímica de lectinas con controles apropiados. Los resultados mostraron que la intensidad de tinción de las lectinas aumenta durante el desarrollo del diente. ConA sólo comienza a reconocer residuos de glucosa/manosa en células ectomesénquimales en la fase de corona revelando cuando la matriz de esmalte empieza a ser secretada. Curiosamente, ligandos de la ConA no se encontraron en la membrana basal de la capa intermedia del esmalte, difiriendo de los modelos de roedores. El patrón de tinción de la UEA-I fue diferente, empieza a ser positivo en el ectomesenquima desde la etapa de brotación y muestra variable expresión en el tipo de célula y la intensidad de la tinción, que parecía ser directamente proporcional al progreso de la odontogénesis. Por lo tanto, este trabajo demuestra que la Con A y la UEA-I presentan una coloración que crece directamente proporcional a citodiferenciación de los ameloblastos y odontoblastos, y revela algunas diferencias entre el estándar glicano de odontogénesis humanos y los modelos roedores...


Subject(s)
Humans , Carbohydrates , Concanavalin A , Odontogenesis , Plant Lectins , Histocytochemistry
15.
Rev. Fac. Odontol. Porto Alegre ; 53(2): 37-39, maio-ago. 2012. ilus
Article in English | LILACS, BBO | ID: lil-719538

ABSTRACT

Este artigo descreve um caso de zoster facial o qual afetou um paciente do sexo masculino de dezesseis anos de idade. Suas ulcerações comprometiam a hemiface direita não ultrapassando alinha média facial. Foram realizados a observação e o acompanhamento do paciente durante e após o tratamento. O caso foi acompanhado do aparecimento das lesões até o processo final decicatrização, onde o paciente retornou à sua condição de vida normal.A infecção por herpes zoster parece ser o resultado de um sistema imunológico enfraquecido e os pacientes portadores devem ser monitorados a fim de detectar possíveis sequelas ou doenças oportunistas não diagnosticadas.


This article describes a case of facial zoster which affected a sixteen-year-old male patient. His ulcerations involved the majority of the right hemiface not surpassing the facial midline. The observation of fallow-up of the patient during and after treatment was accomplished and the case was followed up from appearance of the lesion up the final healing process, where the patient had retumed to his normal life condition. Herpes zoster infection seems to be an outcome of a weakened immunologic system and patients must be monitored in order to detect possible sequels or undetected non-diagnosed diseases.


Subject(s)
Humans , Male , Adolescent , Acyclovir/therapeutic use , Herpes Zoster/drug therapy , Chickenpox/complications
16.
Rev. Fac. Odontol. Porto Alegre ; 53(1): 5-9, jan.-abr. 2012. ilus
Article in Portuguese | LILACS, BBO | ID: lil-719539

ABSTRACT

Objetivo: avaliar através da técnica imuno-histoquímica a expressão da metaloproteinase-9 (MMP-9) em granulomas periapicais e cistosradiculares. Metodologia: Foram selecionados 47 casos de lesõesperiapicais dos quais 26 eram granulomas periapicais e 21 cistosradiculares no período de 14 anos no Laboratório de Patologia Cirúrgica Profº Rildege Accioly, da Faculdade de Odontologia de Pernambuco FOP/UPE. Os dados demográficos analisados foram: sexo, raça, idade, sintomatologia, aspecto radiográfico e localizaçãoanatômica. A amostra composta por47 casos foi submetida à técnicaimuno-histoquímica que foi realizada através do método estreptavidina -biotina, utilizando o anticorpo anti-MMP9. O teste estatístico utilizado foi o exato de Fisher (p≤0,05). Resultado: 55,3% das lesões encontradas corresponderam a granuloma periapical. A faixa etária prevalente foi de 31 a 40 anos de idade(40,9%). Observou-se maior número de casos da raça branca (68,2%) e do sexo feminino (59,6%). Quanto à sintomatologia 72,1% corresponderam a lesões assintomáticas, e quanto ao aspecto radiográfico radiolúcida em 88,6% dos casos, sendo a maxila alocalização anatômica mais acometida (59,1%). Em relação à expressão imuno- histoquímica da MMP-9, 19 cistos (90,5%) e 25granulomas (96,2%) foram positivos, exibindo intensidade de expressão variada. Conclusão: O granuloma periapical é a lesão periapical inflamatória de origem odontogênica mais comum em indivíduos da raça branca na faixa etária entre 31– 40 anos. A MMP-9 parece participardo processo de desenvolvimento e manutenção dos cistos e granulomas periapicais, participando do processo inicial de osteólise principalmente por degradar vários componentes damatriz extracelular.


Purpose: evaluate the immunohistochemical technique using the expression of metalloproteinase-9 (MMP-9) in periapical granulomasand cysts root. Methods: We selected 60 cases of periapical lesions of which 31 were peria pical granulomas and 29 radicular cysts in 14 years in the Laboratory of Surgical Pathology Professor, Rildege Accioly, Faculty of Dentistry of Pernambuco FOP / UPE. Demographic data were collected through biopsy referral sheets on file in the laboratory. The sample comprised47 cases were subjected to immuno histochemical technique that was performed using the streptavidin- biotin method, using anti-MMP7. The statistical test used was Fisher's exact test (p≤0.05). Results: 55.3% of the lesions corresponded to periapical granuloma while 44.7% corresponded tocysts. The most prevalent age group was 31-40 years old (40.9%).There was a higher number of cases were white (68.2%) and females(59.6%). Regarding symptoms accounted for 72.1% of asymptomaticlesions and radiographic radiolucent (88.6%), and the jaw anatomiclocation most affected (59.1%). Regarding the immunohistochemicalexpression of MMP-9 in periapical lesions, 19 cysts (90.5%) and 25 granulomas (96.2%) were positive showing intensities. Conclusion:The periapical granuloma is inflammatory periapical lesion odontogenic more common in Caucasians aged 31-40 years. TheMMP-9 seems to participate in the process of development and maintenance of periapical cysts and granulomas, participating in the initial process of osteolysis primarily degrade various components of the extracellular matrix.


Subject(s)
Humans , Male , Female , Immunohistochemistry , Matrix Metalloproteinases , Odontogenic Cysts , Periapical Periodontitis
17.
Int. j. morphol ; 30(1): 105-109, mar. 2012. ilus
Article in English | LILACS | ID: lil-638768

ABSTRACT

This study investigated the immunodetection of PTCH in epithelial components of dental follicles associated with impacted third molars without radiographic signs of pathosis. One hundred and five specimens of dental follicles associated with impacted third molars with incomplete rhizogenesis (between Nolla's stage 6 and 9) were surgically removed from 56 patients. Epithelial cell proliferation was determined by using immunohistochemical labeling. Statistical analysis was performed using Fisher exact test and a level of significance of 5 percent. Of the 105 dental follicles collected, 3 were PTCH-positive. The specimens with squamous metaplasia and epithelial hyperplasia had higher rates of positivity for PTCH, as well as those with active remnants of odontogenic epithelium. This study suggests that the odontogenic cells of the dental follicle might be proliferating during the rhizogenesis, while the squamous metaplasia and hyperplasia of the epithelial lining and proliferative odontogenic epithelial rests show the differentiation potential of dental follicles.


Se investigó la inmunodetección de PTCH en los componentes epiteliales de los folículos dentales asociados a terceros molares retenidos sin signos radiográficos y morfológicos de patología. Fueron quirúrgicamente extraídos de 56 pacientes 105 muestras de folículos dentales asociadas a terceros molares retenidos con rizogénesis incompleta (entre el estadio de Nolla 6 y 9). La proliferación de células epiteliales se deteminó mediante inmunohistoquímica. El análisis estadístico se realizó mediante la prueba exacta de Fisher. De los 105 folículos dentales recogidos, 3 fueron PTCH-positivos. Las muestras con metaplasia escamosa e hiperplasia epitelial tuvieron mayores tasas de positividad para PTCH, así como aquellos con los restos de proliferación del epitélio odontogénico. En conclusión, este estudio sugiere que las células odontogénicas del folículo dental podrían estar proliferando durante la rizogénesis, mientras que la metaplasia escamosa e hiperplasia del epitelio y de restos epiteliales odontogénicos en proliferación muestran el potencial de diferenciación de los folículos dentales.


Subject(s)
Young Adult , Dental Sac/anatomy & histology , Dental Sac/growth & development , Molar, Third/growth & development , Immunohistochemistry/methods
18.
Rev. cir. traumatol. buco-maxilo-fac ; 12(1): 69-76, Jan.-Mar. 2012. graf, tab
Article in Portuguese | LILACS | ID: lil-792128

ABSTRACT

Objetivo: Este estudo tem como objetivo avaliar a condição periodontal e sua associação com parto prematuro em gestantes inscritas para acompanhamento pré-natal no CISaM/uPE. Metodologia: Foram coletados dados referentes ao aspecto socioeconômico, à gestação, à presença de alterações sistêmicas e bucais, ao uso de medicação de rotina ou complemento alimentar. Resultados: a amostra foi composta por 11 gestantes, enquadradas, em sua maioria, na 3ª década de vida. Quanto à presença de alterações sistêmicas, a Hipertensão arterial Sistêmica apresenta valores mais significativos, representando 42,85% (N=3), e destas, 18,18% (N=2) fazem uso de medicação para o controle da hipertensão. Quantoà frequência de escovação, 45,4% afirmam escovar os dentes 3 vezes ao dia, entretanto em relação ao uso do fio dental, a maior parte (63,6% N=7) afirma não fazer uso, o que explica o fato de 81%(N=9) possuir gengivite. No que se refere à semana gestacional em que ocorreu o parto, cerca de 27,27% (N=3) da amostra foi constituída de nascimentos pré-termo. No que se refere ao pH salivar, foram encontrados valores considerados, como capacidade tampão baixa (N=1) e básica (N=1). Conclusão: Conclui-se que a carência de instruções em higiene bucal e práticas profiláticas correspondem à maior necessidade de tratamento dessas pacientes.


Aim: The aim of this study is to evaluate periodontal disease and its association with premature birth in pregnant women in antenatal attendance at CISaM/uPE. Methodology: Data were collected on socioeconomic status, pregnancy, presence of systemic and oral changes, use of routine medication or food supplements. Results: The sample was composed of 11 pregnant women, most of them aged 20-29 years. as regards systemic alterations, systemic arterial hypertension presents the most significant values, accounting for 42.85 (N=3), and of these 18.18% (N=2) are regularly taking medication to control the hypertension. as for toothbrushing, 45.4% report brushing their teeth three times a day, while the majority (63.6% N=7) state that they do not use dental floss, which explains why 81% (N=9) have gingivitis. Regarding the week during which the birth occurred, about 27.27% (N=3) of the sample had premature births. The salivary pH values were considered to be low (N=1) and basic (N=1) buffering capacity (N=1). Conclusion: It is concluded that the lack of instruction on oral hygiene and prophylactic practices represent the major treatment need of these patients.

19.
Rev. cir. traumatol. buco-maxilo-fac ; 11(3): 77-84, Jul.-Set. 2011. ilus, tab
Article in English | LILACS | ID: lil-792212

ABSTRACT

Objetivo: as lesões fibro-ósseas benignas (LFOB) correspondem a um grupo diverso de patologias caracterizadas pela substituição do tecido ósseo por tecido conjuntivo e matriz extracelular mineralizada. Pouco se conhece a respeito da etiologia desse grupo de lesões. Propomo-nos a analisar por meio da técnica imunohistoquímica a expressão de 3 moléculas (osteonectina, TGFβ-1 e BMP 2/4) envolvidas no metabolismo ósseo. Métodos: Trinta e dois casos diagnosticados como osso normal (ON,8), displasia fibrosa (DF,8), displasia cemento-óssea (DCO,8) e fibroma cemento-ossificante (FCO,8) foram selecionados. Resultados: A osteonectina e a BMP2/4 foram positivas em todos os casos. O TGFβ-1 revelou positividade em 1 caso de DCO e FCO. Conclusão: Os achados imunohistoquímicos sugerem que as LFOB tem processos diferentes de produção de tecido ósseo.


Background: Benign fibro-osseous lesions (BFOL) comprise a diverse group of pathologies characterized by the replacement of normal bone by fibrous tissue and a mineralized product. Little is known about the biology of this group of lesions. We have analyzed the immunohistochemical expression of three molecules involved in bone metabolism, namely osteonectin, TGF-b1, and BMP2/4. Methods: Thirty-two cases diagnosed as normal jaw bone (NJB, 8 cases), fibrous dysplasia (FD, 8 cases), cemento-osseous dysplasia (COD, 8 cases), and cemento-ossifying fibroma (COF, 8 cases) were selected. Results: Osteonectin and BMP2/4 antibodies were positive in all cases. TGFb-1 labeling was seen in one case of COD and COF. Conclusion: The immunohistochemistry findings suggest that BFOL have different processes of osseous tissue production.

20.
Rev. cir. traumatol. buco-maxilo-fac ; 11(3): 85-92, Jul.-Set. 2011. ilus
Article in Portuguese | LILACS | ID: lil-792213

ABSTRACT

Objetivos: Estabelecer a correlação do estadiamento clínico do carcinoma epidermoide intrabucal com o padrão de expressão da proteína E-caderina. Material e Método: Foram selecionados 35 casos diagnosticados como carcinoma escamocelular intrabucal no período de 2004 a 2007, cujo estadiamento clínico e dados clínicos, como sexo, idade, raça, localização da lesão, diagnósticos clínico e histopatológico, gradação, tipo de tratamento, tempo de sobrevida e hábitos, encontravam-se no prontuário desses pacientes atendidos no HCP. Foi realizada a técnica de imunohistoquímica, por meio do método da estreptoavidina-biotina peroxidase, utilizando como anticorpo primário a E-caderina. Resultados: A média de idade dos pacientes foi de 61 anos; houve predomínio do sexo masculino (60%); a língua foi o local mais acometido (51,4%); a associação do tabagismo e etilismo estiveram presentes em 51,4% dos casos; estadiamento II teve o maior número de casos e foi constatado óbito em 40,6% dos pacientes submetidos ao tratamento. A E-caderina apresentou marcação membranar (55,1%) e citoplasmática (44,9%), focal ou difusa. Nas associações entre as variáveis estudadas, verificamos que houve associação significante estatisticamente apenas entre as variantes: sexo e graduação histológica dos tumores (p=1,000) e sexo e tratamento (p=0,409). Conclusão: Na amostra analisada, observamos que o perfil epidemiológico dos pacientes portadores de CEIB é do sexo masculino, fumantes e etilistas, entre a 5ª e 7ª década de vida. Não foi possível estabelecer uma correlação entre as variáveis estudadas para tentar prever o comportamento biológico dos tumores, nem a expressão da proteína E-caderina se mostrou válida para esse fim.


Objective: To establish the correlation of the clinical staging of epidermoid intrabuccal carcinoma with the expression pattern of the E-cadherin protein. Material and Methods: A selection was made of 35 cases diagnosed with oral squamous cell carcinoma from 2004 to 2007 at Pernambuco Cancer Hosptial. The immunohistochemistry technique was performed by the estreptovidine biotine method using E-cadherin as the primary antibody. Results: The mean age of the patients was 61 years. There was a predominance of male patients (60%); the tongue was the most commonly affected site (51.4%); the combination of smoking and alcohol was present in 51.4% of cases; stage II had the highest number of cases, and death was observed in 40.6% of patients undergoing treatment. The E-cadherin showed membrane (55.1%) and cytoplasm (44.9%) staining, either focal or diffuse. Statistically significant associations between these variables were found only between sex and histological grade of the tumors (p = 1000) and between gender and treatment (p = 0.409). Conclusion: In the sample we observed that the epidemiological profile of patients with OSCC is male, a drinker and smoker aged between 40 and 69 years. It was not possible to establish a correlation between the variables studied with the aim of trying to predict the biological behavior of tumors, neither did the expression of E-cadherin protein prove valid for this purpose.

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