Saturday, November 17, 2012

In vivo accuracy of conventional and digital radiographic methods in confirming root canal working length determination by Root ZX

J. Appl. Oral Sci. vol.20 no.5 Bauru Sept./Oct. 2012

OBJECTIVES: To compare, in vivo, the accuracy of conventional and digital radiographic methods in determining root canal working length.
MATERIAL AND METHODS: Twenty-five maxillary incisor or canine teeth from 22 patients were used in this study. Considering the preoperative radiographs as the baseline, a 25 K file was inserted into the root canal to the point where the Root ZX electronic apex locator indicated the APEX measurement in the screen. From this measurement, 1 mm was subtracted for positioning the file. The radiographic measurements were made using a digital sensor (Digora 1.51) or conventional type-E films, size 2, following the paralleling technique, to determine the distance of the file tip and the radiographic apex.
RESULTS: The Student "t" test indicated mean distances of 1.11 mm to conventional and 1.20 mm for the digital method and indicated a significant statistical difference (p<0 .05=".05" br="br"> CONCLUSIONS: The conventional radiographic method was found to be superior to the digital one in determining the working length of the root canal.

1 comment:

Andrew Huang said...

Thank you for the comment. Even though I personally don't perform root canals in office (I rely on our endodontist colleagues), I think that the benefits of digital radiograph such as lower radiation, no waiting to wait for X-ray development, still warrant the usage of it.