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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

BORRONI, Cintya; CONCHA, Ismael; CORDOVA, Luis  and  SOTO, Reinaldo. Macro and Mesoscopical Study About the Irrigation of the Upper Teeth in Dogs (Canis familiaris) through Repletion With Chinese Ink . Int. J. Morphol. [online]. 2006, vol.24, n.4, pp.555-559. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022006000500006.

The irrigation of upper teeth is described macro and mesoscopically in their facial third (incisive and canine teeth) through repletion with Chinese tint. Thirty heads of corpses of dogs were used, which were divided in three equal groups. Group I was injected with blue Chinese ink via facial artery, group II with yellow Chinese ink via maxillary artery, and the group III with blue and yellow Chinese ink via facial and maxillary artery respectively and simultaneously. In the heads, already fixed and conserved, the arrival of the colour of the injected ink was macroscopically analyzed up to the level of the gingiva associated to the upper right incisive and canine teeth; subsequently, the heads were frozen to make them cross sections, which were analyzed mesoscopically, where the arrival of the injected ink was observed up to the level of the alveolus and pulpar cavity of the teeth under study. The present research demonstrated that the facial artery is distributed to deep-lying tissues such as gingiva, alveolus, and pulpar cavity of the upper right incisive and canine teeth in dogs; therefore, it would be contributing to its complementary irrigation, the participation of the branches of the maxillary artery in the irrigation of these tissues, and, finally, it demonstrated that the branches of the facial and maxillary artery anastomose themselves to irrigate tissues they have in common, as the ones that were already mentioned. These results allow us knowing the origin of the revascularization of the upper and periodontal teeth in dogs, after surgical procedures that could damage some branches of maxillary artery. Due to the anatomic similarity of human being's oral cavity and the oral cavity of dogs, the already described results could be used as reference to explain the origin of the revascularization of upper and periodontal teeth, after orthognathic surgery

Keywords : Facial artery; Maxillary artery; Alveolus; Pulpar cavity.

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