Periodontal Evaluation in Noncarious Cervical Lesions Restored with Resin-modified Glass-Ionomer Cement and Resin Composite: A Randomised Controlled Study.

PURPOSE: To assess periodontal parameters of noncarious cervical lesions (NCCLs) restored with glass-ionomer cement (RM-GIC) and composite resin at baseline, three and six months. MATERIALS AND METHODS: Eighteen patients with bilateral lesions were included in the study. Lesions (1 mm in depth) were randomly restored with each type of restorative material. Probing depth (PD), relative gingival recession (rGR), relative clinical attachment level (rCAL), visible plaque index (VPI) and gingival bleeding index (GBI) were measured. RESULTS: No statistically significant differences were found when comparing within groups (p > 0.05). However, the intergroup analysis demonstrated a decrease in GR and rCAL gain for teeth restored with the resin-modified glass-ionomer cement (RM-GIC). CONCLUSION: Both materials behaved similarly when in close contact with periodontal tissues and did not influence periodontal parameters.

Association of immunoexpression of the galectins-3 and -7 with histopathological and clinical parameters in oral squamous cell carcinoma in young patients.

An increasing incidence of oral squamous cell carcinoma (OSCC) in individuals younger than 45 years has been observed in recent years. OSCC in younger patients differs in terms of biological behavior and prognosis with the disease being more aggressive than in older patients. The aim of this study was to analyze the immunohistochemical expression of galectins-3 and -7 in 32 cases of OSCC in young patients and to correlate this expression with clinical and morphological parameters. All cases of OSCC of the sample were diagnosed at oncology referral hospitals in Paraíba, Brazil, between 2002 and 2012. Clinical data were obtained from the patient records. Histological malignancy grading systems proposed by Bryne et al. (J Pathol 166:375-381, 1992) and the World Health Organization (In: Pathology and genetics of head and neck tumours: Word Health Organization classification of tumours, 2005) were used for morphological analysis. Immunohistochemistry was performed by the streptavidin-biotin technique using anti-galectin-3 and -7 antibodies. The results were analyzed statistically by the Chi-squared and Fisher exact tests (p < 0.05). Immunoexpression of galectin-3 was observed in 65.6 % of the cases analyzed, but showed no significant association with any of the variables studied (clinical staging; histological malignancy grading systems). Immunoexpression of galectin-7 was observed in 96.9 % of cases and was significantly associated with histological malignancy grading systems (p < 0.05). In conclusion, the results suggest the use of galectin-7 as marker of biological behavior and tumor progression in OSCC in young patients.

Evidências clínicas e histopatológicas do carcinoma de células escamosas oral em pacientes jovens: revisão sistematizada / Clinical and histopathological evidence of oral squamous cell carcinoma in young patients: systematized review

The oral squamous cell carcinoma (OSCC) very often affects subjects above the sixth decade of life. However an increasing incidence has been observed in younger individuals, below 40 years. We conducted a systematized review of the current clinical, histopathological and therapeutic aspects of OSCC in young patients. Our work included studies that addressed OSCC involving young patients in the period 2007 2012, and which were indexed in PubMed. Initially, 499 articles were obtained; after refinement, 340 articles had their titles and abstracts evaluated, with 17 included in the sample. The majority of studies reported male predominance (87.5%), association with tobacco and/ or alcohol use (66.6%), advanced clinical stages at diagnosis (77.7%) and, at histopathology, moderately differentiated tumors (72.7%). Based on the results, we believe there are differences in the factors associated with pathogenesis, biological behavior and prognosis in young patients, since most studies show more rapid and aggressive tumor progression in this age group. We suggest the conduction of research focusing on the pathogenesis and carcinogenesis of OSCC in young patients, thereby searching for better scientific evidence...

O carcinoma de células escamosas oral (CCEO) acomete mais frequentemente indivíduos em uma faixa etária acima da sexta década de vida. No entanto, tem-se observado uma crescente incidência em indivíduos mais jovens, abaixo dos 40 anos de idade. Realizou-se uma revisão sistematizada dos aspectos clínicos, histopatológicos e terapêuticos atuais do CCEO em pacientes jovens. Foram incluídos os estudos que abordavam o CCEO envolvendo indivíduos jovens no período de 2007-2012 e indexados na base de dados PubMed. Dos 499 artigos obtidos inicialmente, 340 tiveram os títulos e resumos avaliados, com 17 sendo incluídos na amostra. A maioria dos estudos relatou predominância do sexo masculino (87,5%), associação com uso de tabaco e/ou álcool (66,6%), estágios clínicos mais avançados da doença (III e IV) ao diagnóstico (77,7%) e, histopatologicamente, tumores moderadamente diferenciados (72,7%). Com base nos resultados encontrados, acredita-se que possa haver diferenças quanto aos fatores associados à etiopatogenia, ao comportamento biológico e ao prognóstico em pacientes jovens, uma vez que grande parte dos estudos mostra uma progressão tumoral mais rápida e agressiva nessa faixa etária. Sugere-se o desenvolvimento de pesquisas com foco na etiopatogenia e na carcinogênese do CCEO em pacientes jovens, buscando, assim, melhores evidências científicas...