RaCe: Safety tips

The RaCe instrument must never be forced forward in the canal, manual instruments must be used to negotiate obstacles. Instrumentation is done together with copious irrigation. RaCe system is recommended to be used with safety memory disks (SMD). Each SMD has eight petals. The SMD disk is color coded to indicate the taper of the instruments: note that the color indicates different tapers in the Pre-RaCe and RaCe instruments.

The SMD gauge helps to calculate the difficulty of the case with the aid of the canals curvature on the X-ray: a three step scale with simple (S), medium (M) and difficult (D) canals make the allocation of the degree of difficulty easy and determine the number of petals to be removed after file usage in the canal.