A Comparison of intra-oral digital imaging modalities: Charged Couple Device versus Storage Phosphor Plate.

Background: This in vitro study was conducted to compare the accuracy of two digital image receptors in identifying the location of tip of a fine endodontic file and radiographic apex in mandibular posterior teeth.

Methods: Fourteen human cadaver mandibles with retained molars were selected. These molars were prepared for access to the canals and an endodontic file #10 was introduced into the canal at one of the three random distances from the apex of the tooth.