engleski

Tusk abnormalities in wild boar (Sus scrofa L.)

The paper describes pathological alterations in the permanent tusks of four male wild boars. The mandibular tusks of all individuals and also some of the maxillary tusks exhibited an extended enamel hypoplasia in their apical portion, denoting an impairment of secretory ameloblast function. Moreover, the pulp cavities of the mandibular tusks were exposed through openings in the whetting surfaces of the teeth. Presence of a plug of reparative dentine within the pulp cavity was observed in a longitudinally split mandibular tusk of one individual. In a second boar, presence of a plug of reparative dentine within the pulp cavity was indicated radiographically in both mandibular tusks. These findings suggested a reparation process attempting to demarcate a vital apical pulp portion from a necrotic incisal portion. The enamel hypoplasias observed in the teeth are regarded to be a sequel of the pulp inflammation caused by bacterial invasion in the mandibular tusks. Most likely, bacterial invasion of the pulp occurred through the openings in the tusks' whetting surfaces. It is assumed that these openings developed due to insufficient formation of secondary dentine. It is, however, also conceivable that pulp inflammation and partial necrosis occurred as a consequence of bacterial invasion of (patent) dentinal tubules, and that the openings in the whetting surface developed secondarily. One mandibular tusk showed marked signs of resorption apically, suggesting a spread of the inflammation from the pulp into the periodontium.

wild boar (Sus scrofa); teeth; enamel; dentine; pulp; inflammation

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