Dental syringe and capsule for use therewith

In combination a capsule holder and capsule having a laterally extending flange, said capsule holder comprising a tubular barrel,

• means on the end of said barrel for detachably receiving the said capsule,
• said means defining an internal shoulder against which said flange is adapted to abut,
• and a stop detent means formed on the end of said barrel,
• said capsule having a plastic body defining a substantially cylindrically shaped reservoir chamber adapted to contain a predetermined amount of dental material,
• said reservoir chamber being fully open at one end,
• a discharge tip connected to said body and disposed in communication with said reservoir chamber at the other end thereof,
• a freely displaceable piston disposed in said reservoir chamber for sealing the open end thereof,
• said flange having a plurality of notches circumferentially spaced about the outer edge thereof,
• said notches extending transversely of said outer edge;
• said stop detent being receivable in one of said notches whereby said capsule can be rotatably adjusted and locked in a predetermined rotary relationship relative to the end of said tubular barrel.

A storage and dispensing capsule for viscous dental materials from which the dental material can be readily syringed and to facilitate handling by one wearing protective gloves comprising

• an elongated tubular body defining a reservoir portion adapted to contain a predetermined amount of dental material,
• said body portion having a generally cylindrical interior chamber defining said reservoir portion,
• said reservoir portion being open at one end,
• a discharge nozzle connected to the other end of said reservoir portion and disposed in communication with said interior chamber,
• a laterally extending flange disposed about said open end,
• a displaceable piston for sealing said open end,
• means formed upon the external surface of said body portion to strengthen said body portion to resist any internal build-up of pressure that may be developed during the extrusion of the material and for providing a grip for facilitating the handling of said capsule by one wearing protective gloves wherein
• said means comprise a plurality of longitudinally extending raised ribs extending about said body portion and circumferentially spaced thereabout,
• said ribs being integrally formed on said body portion.