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Updated: Aug 22, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
[Dose exposure from analog and digital full mouth radiography and panoramic radiography]
Hanspeter Kiefer1, J Thomas Lambrecht, Jakob Roth
1Klinik für Zahnärztliche Chirurgie, -Radiologie, Mund- und Kieferheilkunde, Zentrum für Zahnmedizin der Universität Basel.
Abstract:
The present study investigated the dose exposition in the head and neck region by use of analog and digital radiographic dental systems. Four radiographic devices were tested: panoramic radiography (analog and digital) and 14-image full-mouth-survey (FMS, analog and digital). Organ doses were measured on a Rando-phantom by use of CaF2-dosimeters according to the IRCP-guidelines and the effective doses calculated. The results were the following: the value of E was lowest in digital FMS (41 microSv) and highest in analog FMS (78 microSv), i.e. dose was reduced by 47% by using a digital device. In panoramic radiography, doses were 17% lower using digital technique (digital 45 microSv vs. analog 54 pSv). Thus, FMS is no longer associated with higher doses than orthopantomography when conventional films are replaced by digital techniques.
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