Delivery system for aqueous paste dental materials

摘要

A cartridge for delivery of aqueous paste dental materials is provided, wherein the cartridge comprises a cartridge body made from an injection moldable material comprising polyolefin polymers. The cartridge body having a Moisture Permeability less than 25 g mil/m2 day atm. and an Oxygen Permeability greater than 180 cm3 mil/m2 day atm. The cartridge body comprises at least one chamber adapted for holding and simultaneously dispensing an aqueous paste dental material. The cartridge has a polymerizable aqueous paste dental material contained within the chamber of the cartridge body, and the cartridge is specially adapted to be mounted in a hand-held ejector-type gun.