Magnitude of beam-hardening artifacts produced by gutta-percha and metal posts on cone-beam computed tomography with varying tube current.
Hugo Gaêta-AraujoEduarda Helena Leandro NascimentoRocharles Cavalcante FonteneleArthur Xavier Maseti ManciniDeborah Queiroz FreitasChristiano Oliveira-SantosPublished in: Imaging science in dentistry (2020)
Increasing the tube current from 4 mA to 8 mA may reduce the magnitude of artifacts from metal posts. The magnitude of artifacts arising from metal posts was significantly higher at distances of 1.5 cm or less than at greater distances. MAR usage improved image quality near the metal post, but had no significant influence farther than 1.5 cm from the tooth.