Needle shielding systems for a dental syringe (100, 200) are disclosed. The needle shielding system (100, 200) comprises a needle (300) and a needle shield (400). The needle (300) has a needle tip (304) and a needle bulge (308) spaced apart from the needle tip (304). The needle shield (400) is slidably mounted over the needle (300) distally from the needle tip (304). Needle shield (400) comprises a base plate (404) and at least one resilient arm (416) extending distally from the base plate (404) towards the needle tip (304), wherein the base plate (404) or the at least one resilient arm (416) has at least one protrusion (424, 428) extending laterally away from the base plate (404) or the at least one resilient arm (416). In use the system (100, 200) is dragged against another structure to move the needle shield (400) along the needle (300) though interaction between said structure and said at least one protrusion (424, 428), until the needle shield (400) contacts the needle bulge (308) and the resilient arm (416) covers the needle tip (304). The syringes (100, 200) generally comprise a barrel (104, 204), plunger (108, 208), an anesthetic (112, 212), and a needle (300). The barrel (104, 204) has proximal and distal ends. The plunger (108, 208) is inserted into the proximal end of the barrel (104, 204) and is slidably moveable within the barrel (104, 204). The anesthetic (112, 212) is in contact with and between the plunger (108, 208) and the distal end of the barrel (104, 204). The needle (300) is connected to the distal end of the barrel (104, 204). In use the needle (300) is inserted into the gum or inner cheek of a patient and the plunger (108, 208) is depressed to inject the anesthetic (112, 212) though the needle (300) and into the patient. The dental syringes (100, 200) may also include a needle shield (400) slidably mounted over the needle (300).L'invention concerne des systèmes de protection d'aiguille pour une seringue dentaire (100, 200). Le système de prot