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Online ISSN 1827-174X
Traini T., Murmura G., Giammaria G., Ciavarelli L., Caputi S.
Background. The salivary calculus is an ancient pathologic condition, called ''sublingual stone'' by Hyppocrates. It is well-defined from a anatomo-pathologic, diagnostic and topographic viewpoint, though some pathogenesis-related doubts still exist. This work aims at relating the micro-morpho-structural aspect of a salivary calculus of remarkable dimensions with the current calculogenetic hypotheses.
Methods. A 1.1 g salivary calculus removed from the initial section of Wrthon's duct in the right-hand submandibular gland of a 42 year old male has been studied. Following the fixation in 4% buffered formalin and the inclusion in resin, it was serially sectioned in 15-20 micron slices. Some sections were coloured with toluidine blue O and acid fuchsin.
The exeresis of the calculus was carried out intraorally, with marsupialization under local anesthesia. The analysis was performed using a SEM with backscattered electrons and a polarised and transmitted light microscope.
Results. The investigations have outlined the presence of various organic ''cores'' and a concentric, stratiform architecture interrupted by radial elements.
Conclusions. The formation of this calculus may be due to mixed secondary lithiasis resulting from the formation of colloids and crystalloids.