00735naa a2200241 a 450000100080000000500110000800800410001910000230006024500960008326000090017965000160018865000150020465300130021965300270023265300230025965300130028265300350029570000200033070000240035070000230037470000150039777300810041218770352011-09-13       2010    bl uuuu     u00u1 u    #d1 aSILVEIRA, L. F. M.  aCrown-down preflaring in the determination of the first apical file.h[electronic resource]  c2010  aEndodontics  aMicroscopy  aElectron  aRoot canal preparation  aRoot canal therapy  aScanning  aTooth anatomy; Tooth histology1 aSILVEIRA, C. F.1 aCASTRO, L. A. S. de1 aCÉSAR NETO, J. B.1 aMARTOS, J.  tBrazilian Oral Research, São Paulogv. 24, n. 2, p. 153-157, apr-jun. 2010.