Este trabalho foi realizado em feiras livres e em locais de pesca na cidade de Imperatriz no Estado do Maranhão/Brasil. Teve como objetivo avaliar o perfil socioeconômico dos pescadores que utilizam ...os recursos da pesca artesanal, assim como investigar o sistema de comercialização, os apetrechos de pesca, tipos de embarcações, espécies que são comercializadas em feiras livres do município. Para obter conhecimento a respeito do sistema de comercialização do pescado em Imperatriz, uma coleta dos dados foi realizada em três feiras livres localizadas nos seguintes bairros, Bom Sucesso, Mercado Municipal da Beira Rio e Nova Imperatriz, por meio de questionário semiestruturado. De acordo com as pesquisas, cerca de 62% dos responsáveis pelas bancas são do sexo feminino, enquanto que 38% são do sexo masculino a faixa etária variando entre 26 a 58 anos de idade, segundo os comerciantes as barragens tem sido os maiores causadores da diminuição das espécies.
This study evaluated the color change, cytotoxicity and hydrogen peroxide (HP) diffusion caused by different home bleaching protocols: 10% carbamide peroxide (CP) for 3 or 1.5 h, 6% hydrogen peroxide ...for 1.5 h or 45 min. To quantify the peroxide penetration, disks of bovine teeth were placed in artificial pulp chambers (APCs) containing acetate buffer, which was collected for evaluation in a spectrophotometer. For analysis of cytotoxicity, specimens were adapted in APCs containing culture medium, which subsequently was applied on MDPC-23 odontoblast-like cells for 1 h. Cellular metabolism was evaluated by methyl tetrazolium (MTT) assay and the color change of the specimens was analyzed using the CIE L * a * b * system. The data were submitted to ANOVA and Fisher test (α=5%). The treatment with 10% CP for 3 h was the most effective, and 6% HP for 45 min produced the lowest color change. The groups 10% CP for 1.5 h and 6% HP for 45 min had the lowest trans-enamel dentinal HP penetration, and the 6% HP for 1.5 h had the highest. None of the protocols affected cellular metabolism and morphology. In conclusion, reduced peroxide exposure time reduced the bleaching result; higher HP diffusion did not mean higher effectiveness.
Actinic cheilitis is a potentially malignant lesion that occurs by chronic exposure of the lips to ultraviolet rays, which are the main etiologic agent of squamous cell carcinoma affecting the lower ...lip. A 67-year-old male patient with a complaint of multiple white stains in this region with 2-months evolution time was selected. Clinical examination revealed loss of delimitation of vermillion border of the lower lip and presence of white, nonscratch plaques with a rough and diffuse surface. The biopsy revealed presence of grade II dysplasia; then the treatment of vermilionectomy in the lower lip was chosen and confirmed the diagnosis of squamous cell carcinoma. The patient was referred to the oncologist. The report confirmed the malignancy of the lesion and supports the conclusion that the dentist should closely monitor cases of potentially malignant disorders in view of the early diagnosis of possible malignant neoplasms.
Cementoblastoma in the Posterior Maxilla: a Case Report Ferrreira Santos, Dayanne Simoes; Gonçalves, Andrea; De Almeida Lança, Maria Letícia ...
Oral surgery, oral medicine, oral pathology and oral radiology,
September 2018, 2018-09-00, Letnik:
126, Številka:
3
Journal Article
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