Sherfudhin H, Hobeich J, Carvalho CA, Aboushelib MN, Sadig W, Salameh Z. Effect of different ferrule designs on the fracture resistance and failure pattern of endodontically treated teeth restored with fiber posts and all-ceramic crowns . J Appl Oral Sci. 2011;19(1):28-33. doi:10.1590/S1678-77572011000100007