Análise por microCT da capacidade de mineralização de cimentos endodônticos

• Autor(a) principal: Homse, Vitor Correa [UNESP]
• Data de Publicação: 2015
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/149716; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2017-01-31/000868292.pdf
• topic: Hidróxido de cálcio; Cimentos dentários; Cimentos de ionômeros de vidro; Calcium hydroxide

The aim of this study was to evaluate the mineralization ability of the endodontic materials BiodentineTM and White Angelus® MTA when compared with calcium hydroxide. Pulpotomy was performed in 48 Wistar rats, on the first right and left lower molars. Access was made with 1/2 carbide bur at high speed, with continuous irrigation, and pulp cut with an adapted curette. After coronal pulp removal, the chamber was irrigated with saline until hemostasis. The pulp capping was performed with Biodentine, WMTA or Calcium Hydroxide and crown restored with glass ionomer and sealed with unfilled resin (Pemaseal, Ultradent). The control group did not receive capping material, and was directly sealed with glass ionomer. Microtomography analysis (SKY SCAN 1174) was performed after 7, 15 and 30 days. The area of hard tissue bridge formation was measured through CTAn software, and two way ANOVA was performed. At 7, 15 and 30 days Biodentine produced an average of 65%, 71% and 68% of hard tissues in the area of mineralization, respectively; calcium hydroxide produced 38%, 56% and 53%, while WMTA produced 27%, 21% and 41%. Biodentine™ induced the highest mineralization areas followed by calcium hydroxide and WMTA