[Fluoromicroscopy].

The fluorescence is a photoluminescent phenomena consisting in the emission of light under the influence of a light wave excitation. Two types of fluorescence exist: the primary fluorescence (natural) and the secondary (induced by a fluorochrome) The fluoromicroscope is composed of two parts. One of which, unspecific, consists in the classical optical system of the photonic microscopy. The other part, specific, consists in a source of light at a high mercurial pressure and a double filtration system of excitation and pause. There are many applications of this technique. In odontology, it is frequently used for the study of apposition in calcified tissues after their labelling by injection of a fluorochrome.