The invention relates to a dental micro-applicator (1) for applying a liquid or paste in a cavity of a natural tooth, having a hollow sleeve-like application head (2) with a distal (2.2) and a proximal region (2.1) and with an application region (5.1) at the front face of the proximal region (2.1) of the application head (2), a punching spike (4), the tip of which is oriented toward distal, being arranged in the hollow sleeve-like application head (2) in the proximal region (2.1), and an opening (7) being formed at the front face of the proximal region (2.1) for passage of a liquid or paste to be applied, a micro-container (3) being inserted, in particular slid in or turned in, from distal into the hollow sleeve-like application head (2), the outer shape of which being formed in fit to the inner shape of the application head (2), and the micro-container (3) having an internal space (10) to receive the liquid or paste to be applied. Moreover, the micro-container is closed at its distal side (9) and at its proximal front face (6).