The applicator (1) has a handle present at an end of the applicator for pressing a container (3) in a cavity. A cylindrical displacing piston (4) remains at a same position relative to a line during insertion of side walls of the container in the cavity such that a dental fluid (2) is compressed from interior of the container by the line. A drive mechanism expels the fluid from the container for slashing or driving a film (16) with a pin. The container is opened using force with which the fluid is discharged. The container is coated using polymer i.e. parylene.
