Stent Scraping for Histology: An Alternative Method for Obtaining Tissue to Rule out Neoplasia

Despite improvement in diagnostic modalities, confirmation of a histologic diagnosis of cancer of the biliary tree and pancreas remains elusive. Attempts to collect positive cytology specimens from vigorous brushings or washings obtained at endoscopy or percutaneously are often unsuccessful. In our unit, we have increased the yield by obtaining tissue scraped from prostheses that have been previously placed in either the bile duct or the pancreatic duct. The stents are first flushed with saline to collect cytology specimens, after which, they are bisected and scraped, and these contents are prepared in a manner similar to that used to prepare biopsy samples. Twelve of 16 scraped samples, 9 bile duct and 3 pancreas, were positive for adenocarcinoma. The cytology specimens were positive in only 4 of the 12. We recommend this method of sampling from material contained within prostheses as an adjunct when previous brushings, washings, or biopsies are negative

PROTOCOLO CLINICO PARA CIMENTAÇÃO DE RESTAURAÇÕES CERÂMICAS INDIRETAS EM DISSILICATO DE LITIO – RELATO DE CASO CLINICO

A constante busca por um sorriso harmônico e estético aumenta o nível de exigência e de expectativa dos pacientes, as facetas indiretas estão sendo mais indicadas para problemas dentais quanto à forma, posição, textura superficial e cor, sendo contraindicadas nos casos de redução significativa da estrutura dental sadia

O USO DE SISTEMAS CAD/CAM PARA CONFECÇÃO DE PRÓTESES DENTÁRIAS

A odontologia reabilitadora moderna a fim de obter métodos que aliem estética, durabilidade, facilidade de execução e economia de tempo, tanto para o profissional quanto para o paciente têm investido em processos automatizados