%0 Journal Article %T Cisel em U para a sec£¿£¿o do teto da ¨®rbita: nota t¨¦cnica %A GUSM£¿O %A SEBASTI£¿O %A SILVEIRA %A ROBERTO LEAL %A FALEIRO %A RODRIGO %J Arquivos de Neuro-Psiquiatria %D 1999 %I Academia Brasileira de Neurologia - ABNEURO %R 10.1590/S0004-282X1999000200027 %X we describe a new u-shaped chisel whose cutting edge allows for a precise and safer cutting of the orbital roof in the frontoorbital approach. %K frontoorbital approach %K operative technique %K instrumentation. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0004-282X1999000200027&lng=en&nrm=iso&tlng=en