Extensive ameloblastoma in young patient: 5-year follow-up with no recurrence using conservative treatment / Ameloblastoma extenso em paciente jovem: proservação de 5 anos sem recidiva com tratamento conservador

ABSTRACT Ameloblastoma is a benign, odontogenic tumor that, due to its low rate of incidence, slow growth and local invasiveness, can be treated with a variety of surgical approaches, ranging from conservative to radical procedures. The conventional variant of ameloblastoma, though, is more aggressive and common, presenting a higher rate of recurrence than the unicystic and extraosseous/peripheral types; usually, the treatment of choice for this variant employs more invasive procedures. This report is of a 13-year-old male patient who presented with a swelling on the posterior mandibular region, on the left side of his face. Intraoral examination revealed lingual displacement of teeth 36 and 37. The clinical, radiographic and histopathological analyses confirmed the diagnosis of ameloblastoma (plexiform histological type). The patient was treated with curettage and peripheral osteotomy and a 5-year follow-up examination showed the area to have healed completely, with no evidence of recurrence. Consequently, although the clinical management of ameloblastoma is often based on invasive surgical approaches, large tumors treated with conservative surgery are less aesthetically and functionally impaired, and may demonstrate good prognosis with no recurrence in the 5-year follow-up period, as in the case reported here.

RESUMO O ameloblastoma é um tumor odontogênico benigno que pode ser tratado com diferentes abordagens cirúrgicas, variando desde procedimentos conservadores a radicais, devido à sua baixa frequência, crescimento lento e capacidade localmente invasiva. A variante convencional deste tumor é mais agressiva e frequente com uma maior taxa de recorrência comparado aos tipos unicísticos e extraósseo/periférico. Um paciente do gênero masculino, 13 anos de idade, apresentou-se com a queixa de uma tumefação na região mandibular posterior no lado esquerdo da face. Ao exame físico intrabucal, observou-se o deslocamento dos dentes 36 e 37 para lingual. A avaliação clínica, imaginológica e histopatológica confirmaram o diagnóstico de ameloblastoma do tipo histológico plexiforme. O paciente foi tratado com curetagem e osteotomia periférica. A proservação de 5 anos mostrou uma completa cicatrização da área sem sinais de recidiva da lesão. O manejo do ameloblastoma permanece baseado na abordagem cirúrgica radical, no entanto, tumores extensos tratados com cirurgia conservadora apresentam menor comprometimento da estética e função, e podem demonstrar um bom prognóstico sem recorrências em 5 anos de proservação, semelhante ao presente caso relatado.

Cyclin D1 and Ki-67 expression correlates to tumor staging in tongue squamous cell carcinoma

BACKGROUND: The immunohistochemical expression of Cyclin D1 and Ki-67 were analyzed in tongue squamous cell carcinomas (SCC), relating them to the clinical and morphological exhibition of these tumors. MATERIAL AND METHODS: Twenty-nine patients fulfilled the inclusion criteria; clinical data included gender, age, ethnicity and use of licit drugs such as alcohol and tobacco. The TNM staging and histopathological differentiation grading was assessed for each case. In addition, T1 patients were gathered with T2 patients; and T3 patients were gathered with T4 patients to assemble two distinct groups: (T1/T2) and (T3/T4). RESULTS: The mean follow-up time was 24 months and 30% of the patients died as a consequence of the disease, while 23.3% lived with the disease and 46.7% lived lesion-free. T1 and T2 tumors showed statistically lesser Ki-67 and Cyclin D1 staining when compared to T3 and T4 tumors. CONCLUSIONS: Ki-67 and Cyclin D1 pose as auxiliary tools when determining the progression of tongue SCC at the time of diagnosis

Correlation between gender, temporomandibular joint disc position and clinical findings in patients with temporomandibular disorder / Correlação entre sexo, posição do disco da articulação temporomandibular e os resultados clínicos em pacientes com disfunção temporomandibular

OBJECTIVE: The objective of this study was to assess gender differences in temporomandibular joint disc position using magnetic resonance imaging and to check for symptoms in patients with temporomandibular disorders. MATERIALS AND METHODS: Eighty-seven consecutive patients (70 females and 17 males) were evaluated. Bilateral magnetic resonance imaging was performed to determine the temporomandibular joint disc positions; these were divided into four diagnostic categories: no disc displacement, right disc displacement, left disc displacement and bilateral disc displacement. The clinical data assessed were pain on muscle and temporomandibular joint palpation. The data were analyzed using the Fisher's exact test, chi-square test or analysis of variance. Significance was set at p ≤ .05. RESULTS: The study population had more females (80.5%) than males (19.5%) and the mean age of females (31 ± 11 years) was lower than the mean age of males (41± 12 years). Bilateral disc displacement was significantly most frequent in females. Clinical examination showed more pain on muscle palpation for female than for male patients. CONCLUSION: Women had a higher frequency of temporomandibular joint disc displacement, as well as a larger number of painful points on muscle palpation than men.

RESUMO OBJETIVO: O objetivo deste estudo foi avaliar as diferenças de gênero na posição do disco da articulação temporomandibular usando ressonância magnética para verificar se há sintomas em pacientes com disfunção temporomandibular. MATERIAIS E MÉTODOS: Foram avaliados oitenta e sete pacientes consecutivos (70 mulheres e 17 homens); foi realizada ressonância magnética bilateral para determinar as posições do disco da articulação temporomandibular; estes foram divididos em quatro categorias diagnósticas: nenhum deslocamento de disco, deslocamento de disco a direita, deslocamento de disco a esquerda e deslocamento de disco bilateral. Os dados clínicos avaliados foram: dor a palpação no músculo e na articulação temporomandibular. Os dados foram analisados utilizando o teste exato de Fisher, teste do qui-quadrado ou análise de variância. Significância foi de p ≤ 0,05. RESULTADOS: A população do estudo tinha mais mulheres (80,5%) que homens (19,5%). O deslocamento blateral de disco foi significativamente mais frequente no sexo feminino. O exame clínico mostrou mais dor à palpação muscular para mulheres do que para homens. CONCLUSÃO: As mulheres apresentaram uma maior frequência de deslocamento de disco da articulação temporomandibular, bem como um maior número de pontos dolorosos à palpação muscular do que os homens.

Noninvasive treatment choice for an aged down syndrome patient presenting a residual periapical cyst.

AIM: This is the first report to illustrate the marsupialization as an effective treatment for a Down Syndrome (DS) patient presenting a residual periapical cyst. BACKGROUND: These cysts occur within the alveolar ridge, usually at the local site of a previously extracted tooth that did not received proper curettage; usually the surgical excision of a cyst and also the vigorous curettage of a socket is very simple, if not for the fact that mentally disabled patients require rapid and non-stressful procedures. CASE DESCRIPTION: The 54-year-old DS patient represented herein received a minimally invasive marsupialization under local anesthesia. Due to the large extent of the lesion, the acrylic resin drain was maintained for 30 days. Through the following period, a daily irrigation of the cystic cavity with saline solution was carried out to prevent a secondary infection within the cystic cavity. A follow-up of 16 months showed no signs of recurrence. CONCLUSION: Marsupialization of residual periapical cyst is completely effective and safe, even for a DS patient that is considered to be at an advanced age. CLINICAL SIGNIFICANCE: Marsupialization poses as a minimally invasive choice for mentally disabled patients, even when presenting advanced ages; treatment success was stated by the easy clinical conduct, uneventful postoperative situation and the lack of recurrence along 16 months of follow-up.

Correlation between inflammatory infiltrate and epithelial lining in 214 cases of periapical cysts.

The aim of this study was to evaluate the prevalence of periapical cysts, identify their clinical and microscopic features and correlate their microscopic features with the inflammatory infiltrate present in the lesion site. A total of 214 cases were collected over a 10-year period. Clinical data, including gender, age, race, symptoms and location of the lesion, were recorded. Two independent examiners with no prior knowledge of the patients' clinical data conducted the microscopic evaluations. Statistical analyses were performed using Fisher's or chi-square tests at a 5% level of significance. The results showed that periapical cysts were more prevalent in white women, with a mean age of 35 years, and in the anterosuperior region. The majority of the lesions were lined by atrophic cystic epithelium, which was associated with moderate inflammatory infiltrate in the cystic capsule (p < 0.01), with a diffuse localization pattern (p = 0.03) and absence of neutrophils (p = 0.01). Our findings suggest that periapical cysts lined by atrophic epithelium are related to the presence of moderate mononuclear inflammatory infiltrate.

Conservative surgical-orthodontic treatment of a young patient with a dentigerous cyst / Tratamento cirúrgico conservador e ortodôntico em paciente jovem com cisto dentígero

Introdução: Cisto dentígero é um cisto odontogênico de desenvolvimento cuja abordagem terapêutica depende do tamanho da lesão. A proposta desse relato foi descrever o tratamento realizado em um paciente do gênero masculino de 14 anos de idade portador de cisto dentígero envolvendo o segundo molar permanente inferior esquerdo. Relato de caso: Foi realizada a exodontia do primeiro molar permanente inferior esquerdo e a lesão foi descomprimida e marsupializada através de um dreno de acrílico suturado na mucosa. O espécime retirado durante o ato cirúrgico confirmou o diagnóstico de cisto dentígero. Após 90 dias, houve diminuição significativa da lesão. Em seguida, iniciou-se o tratamento ortodôntico, que incluiu o tracionamento do dente impactado e a abertura de um espaço adequado com um aparelho fixo, proporcionando alinhamento e nivelamento favoráveis. Conclusão: A marsupialização e o tracionamento ortodôntico devem ser considerados quando se planeja o tratamento de cisto dentígero, principalmente em pacientes jovens com lesões extensas, a fim de preservar estruturas nobres adjacentes à lesão.

Introduction: The dentigerous cyst is a developmental odontogenic cyst, whose therapeutic approach depends on the size of the lesion. This paper describes the treatment performed on a 14-year-old male patient who presented with a large dentigerous cyst on the permanent mandibular left second molar. Case Report: The permanent mandibular left first molar was extracted, and the lesion was decompressed and marsupialized by excision of the overlying mucosa, opening a window into the cystic cavity and suturing an acrylic resin drain to the oral mucosa. The specimen removed during surgery confirmed the diagnosis of a dentigerous cyst. Within ninety days of surgery, there was a significant reduction in lesion size. Orthodontic treatment was then started, and included traction of the impacted tooth and opening of adequate space with a fixed appliance, providing favorable tooth alignment and leveling. Conclusion: Marsupialization and orthodontic traction should be considered when planning the treatment of a dentigerous cyst, mainly in young patients with large lesions, to avoid damage to the surrounding structures.

Eficácia do piroxicam e laser de baixa potência no tratamento da artralgia da articulação temporomandibular: estudo clínico randomizado duplo-cego / Effectiveness of piroxicam and low level laser in the treatment of temporomandibular joint arthralgia: a double-blind clinical randomized trial

O presente estudo avaliou a eficácia do piroxicam associado ao laser de baixa potência (LBP) no tratamento da artralgia da articulação temporomandibular (ATM). Trinta e dois pacientes (média de idade de 32,44 anos ± 13,02) com artralgia da ATM foram selecionados e divididos em 3 grupos: LBP+piroxicam (LPi), LBP+placebo de piroxicam (L) e piroxicam+placebo de LBP (Pi). Os pacientes receberam a terapêutica por 10 dias. As avaliações foram feitas no 1º, 3º, 8º, 10º dias de tratamento e 30 dias após o término. A presença e intensidade de dor espontânea, dor à palpação e máxima abertura bucal foram mensurados. Os dados foram analisados usando os testes de Friedman e de Wilcoxon, ou ANOVA e o teste t, adotando-se p<0,05 como nível de significância. Melhoras foram encontradas para os fatores dor espontânea e dor à palpação na análise intragrupo, embora diferenças significantes não foram encontradas entre os grupos. Entretanto, na avaliação de 30 dias, o grupo Pi apresentou menor dor à palpação (p=0,01) e menor dor para o músculo temporal (p=0,02) com diferenças significantes entre os grupos. Os resultados obtidos sugerem que a associação entre LBP e piroxicam não foi mais eficaz que as terapêuticas isoladas no tratamento de artralgia da ATM, e todas as terapêuticas foram eficazes na diminuição da dor. O uso do piroxicam isolado mostrou-se mais eficaz no acompanhamento de 30 dias para dor à palpação comparado ao uso de LBP isolado.

This aim of this study was to evaluate the efficacy of piroxicam associated with low-level laser therapy (LLLT) in the treatment of arthralgia of the temporomandibular joint (TMJ). Thirty-two patients (mean age 32,44 years old ± 13,02) with TMJ arthralgia were enrolled in the study and divided into 3 groups: LLLT+ piroxicam (LPi), LLLT+placebo piroxicam (L) e piroxicam+placebo LLLT (Pi). Patients were managed for ten days. Follow-up evaluations were done at the 1st, 3rd, 8th and 10th days of treatment and 30 days after the end. The presence and intensity of spontaneous pain, pain on palpation and mandibular maximum vertical opening were measured. Data were analyzed using Friedman and Wilcoxon tests or ANOVA and t test, considering a significance level of 5%. Improvements were found for factors spontaneous pain and pain on palpation in the intragroup analysis, although no significant differences were detected among groups. However, evaluation of 30 days after the treatment showed significant differences among groups, that the group Pi had the lowest pain on palpation (p=0,01) and the lowest pain for temporal muscle (p=0,02). The obtained results suggest that the association of LLLT and piroxicam were not more effective than single therapies in the treatment of TMJ arthralgia, and all treatments were effective in decreasing pain. The use of piroxicam alone was more effective in the following 30 days for pain on palpation over the use of LBP alone.

Características clínicas, epidemológicas e microscópicas do câncer bucal diagnosticado na Universidade Federal de Alfenas / Clinical, epidemiological and microscopic features of oral cancer as diagnosed at the University of Alfenas

O presente trabalho teve por objetivo caracterizar e comparar as características clínicas e demográficas dos pacientes portadores de câncer bucal e avaliar os aspectos microscópicos de cada neoplasia, baseando-se na graduação histopatológica de malignidade. Foi realizado um levantamento de todas as neoplasias malignas diagnosticadas e arquivadas no Laboratório de Anatomia Patológica da Universidade Federal de Alfenas desde janeiro de 1998 até dezembro de 2006 e constatou-se um número de 49 tumores. Os resultados demonstraram que, dessas 49 lesões,43 eram carcinomas espinocelulares, três eram neoplasias malignas de glândulas salivares e os demais eram carcinomas in situ, microinvasivos e verrucosos. Os tumores foram mais prevalentes em pacientes leucodermas, com idades entre 51 e 60 anos, e do gênero masculino. As lesões se localizavam com maior frequência em borda lateral de língua e se apresentavam na forma de úlceras infiltrativas. Constatou-se também que os tumores, em sua maioria,eram carcinomas espinocelulares bem diferenciados e apresentavam um índice de graduação histopatológica de malignidade entre 4 e 8. Concluiu-se que o câncer bucal ainda é uma lesão bastante prevalente e que tem uma predileção por pacientes leucodermas, acima de 50 anos de idade e do gênero masculino.