Abstract: A cannula for a multifunction dental syringe includes a fastener bushing that is defined by a circular opening, an end wall, and a side wall comprising a circular cylinder. The cannula also includes at least two channels enabling fluids to be conveyed separately or together from the end wall to fluid projection orifices, and beginning in the end wall beside each other. The cannula is arranged so that the circular cylinder presents a cutout in the thickness of its wall. The cutout comprises, going from the opening, at least one segment extending in a direction other than the axial direction of the cylinder; followed by a longitudinal segment extending towards the end wall.

Abstract: A cannula for a multifunction dental syringe includes a fastener bushing that is defined by a circular opening, an end wall, and a side wall comprising a circular cylinder. The cannula also includes at least two channels enabling fluids to be conveyed separately or together from the end wall to fluid projection orifices, and beginning in the end wall beside each other. The cannula is arranged so that the circular cylinder presents a cutout in the thickness of its wall. The cutout comprises, going from the opening, at least one segment extending in a direction other than the axial direction of the cylinder; followed by a longitudinal segment extending towards the end wall.

Abstract: A protection assembly for a syringe, in dentistry in particular, that includes a syringe body, with the protection assembly being of the disposable type and including: a canula (10) in an elastically rigid material, including a base that is intended (16) to be fixed onto the syringe body, and a sheath (12) in a flexible material formed of two parallel plane walls (18A, 18B) intended to loosely cover the syringe body, the sheath being fixed onto the canula close to the base, and the fixation being of the irreversible type.