This disclosure is directed to a dental syringe having a capsule holder and a plunger for accurately and precisely placing a viscous or low viscosity composite resin dental restorative material from a capsule directly into a tooth. The improvement resides in a plunger having an ejector tip which is maintained under a positive bias that is intended to retract when a resistance exceeding a predetermined amount is met during an ejecting procedure so as to prevent any build-up of pressure within the capsule containing the material to be dispensed that may tend to distort or rupture the capsule. In the case of a low viscosity resin, the plunger having an ejector tip maintained under a positive bias that is intended to retract when the speed of ejection exceeds that of a predetermined rate, so as to prevent sudden and excessive extrusion of material from the capsule. The capsule containing the viscous material may also be provided with a reinforced body portion to further aid in resisting any built-up internal pressure within the capsule during an ejecting procedure. The capsule may also include orientation notches formed on the flange for engaging a stop detent for positively maintaining the capsule in a predetermined oriented angular position relative to the holder.
