| 摘要 |
The invention relates to a dental tool for applying locally into the mouth-cavity a quantity of fluid which may take the shape of a liquid, a paste or a gel, comprising a stick (1), one end (2) of which is formed as an applicator (3). The other end (7) the stick is provided with a container (11) of said fluid placed in a first tight inner casing (10). In its turn said first inner casing with said container of said fluid is enclosed in a second outer casing (12) which in its tip part (14) is provided with at least one aperture or slit (16). The outer casing is displaceable inwardly towards the stick and/or the outer casing is made of a material so resilient as to be easily deformed when the outer casing forcibly is pressed against a first support. The first inner casing is of so small bursting strength as to be crushed between the tip of the outer casing and the end wall (8) of the stick in said other end, when the outer casing is displaced as mentioned and/or is deformed, whereby the fluid let out of the first casing may be pushed out through the aperture or slit in the tip of the outer casing. <IMAGE> |
