科研之友
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摘要
teeth development results from a complicated interaction between oral epithelium and underlying mesenchematic tissue during odontogenesis. abnormal interaction between this tissues could result in development and eruption of an ectopical, anomalous teeth or with an anatomical variation. this report shows three cases of teeth with anatomical variations at root and pulp canal in mandibular canine and bicuspid, and maxillary first bicuspid. diagnosis of these cases was performed through radiographical analysis. mandibular canine and bicuspid shown two root and two pulp canals, maxillary first bicuspid presented three roots and three pulp canals. considering that maxilar tooth showed caries closer to pulp chamber, patient was derived to an endodontic specialist to perform an endodontic treatment and rehabilitation. idealizing root canal as a simple and invariable structure is a mistake. clinicians always ought to take into consideration potential anatomical variations in teeth, especially in those that require endodontic treatments or any kind of procedure inside root canal system. timely and adequate indication of imagenological complementary exams allow an adequate diagnosis of anatomical variations that will decrease chances of accidents during treatment.
