Retrospective dosimetry using OSL of tooth enamel and dental repair materials irradiated under wet and dry conditions.

Research output: Contribution to journalArticlepeer-review


Following a radiological or nuclear emergency event, there is a need for quick and reliable dose estimations of potentially exposed people. In situations where dosimeters are not readily available, the dose estimations must be carried out using alternative methods. In the present study, the optically stimulated luminescence (OSL) properties of tooth enamel and different dental repair materials have been examined. Specimens of the materials were exposed to gamma and beta radiation in different types of liquid environments to mimic the actual irradiation situation in the mouth. Measurements were taken using a Risø TL/OSL reader, and irradiations were made using a (90)Sr/(90)Y source and a linear accelerator (6 MV photons). Results show that the OSL signal from tooth enamel decreases substantially when the enamel is kept in a wet environment. Thus, tooth enamel is not reliable for retrospective dose assessment without further studies of the phenomenon. Dental repair materials, on the other hand, do not exhibit the same effect when exposed to liquids. In addition, dose-response and fading measurements of the dental repair materials show promising results, making these materials highly interesting for retrospective dosimetry. The minimum detectable dose for the dental repair materials has been estimated to be 20-185 mGy.
Original languageEnglish
Pages (from-to)443-449
JournalRadiation and Environmental Biophysics
Issue number4
Publication statusPublished - 2012

Subject classification (UKÄ)

  • Radiology, Nuclear Medicine and Medical Imaging


Dive into the research topics of 'Retrospective dosimetry using OSL of tooth enamel and dental repair materials irradiated under wet and dry conditions.'. Together they form a unique fingerprint.

Cite this