After the incision, use the twist drill for initial preparation.
The purpose of these drills is to perform a preparation up to 1-2 mm from the floor of the maxillary sinus.
The drilling depth can be adjusted using the drill stops included in the kit.
The drill-stops intended for the Rialto kit can be identified by the laser marking “SL” on each drill stop.
These drills must not come into contact with the Schneider’s membrane as the cutting edges may perforate the sinus mucosa.