【摘 要】
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Aim: To investigate the morphology of the root canal system of the mandibular first premolars using cone-beam computed tomography(CBCT).Methods: A total of
【机 构】
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School of Stomatology,Shandong University
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Aim: To investigate the morphology of the root canal system of the mandibular first premolars using cone-beam computed tomography(CBCT).Methods: A total of 337 CBCT images of mandibular first premolars were obtained from 204 patients.Parameters were recorded,including tooth position,root canal morphology,the distance between the apical foramen and the anatomical apex,and the distance between root canal orifice and the anatomical apex of the mandibular first premolars with two root canals.The correlation between the number of root canals and tooth position was analyzed with Fishers exact test.
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