OSL dosimeters for dental panoramic radiography

• Published in: Applied radiation and isotopes Vol. 142; pp. 32 - 37
• Main Authors: Gutiérrez-Marquez, J.G., Avalos-Piña, L.Y., López-Valencia, A., Palacios-Pérez, L.L., Vega-Carrillo, H.R., Rivera-Montalvo, T.
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.12.2018
• Subjects: Adult; Calibration; Dosimetric characteristics; Equivalent dose; Female; Humans; Male; Optically Stimulated Luminescence Dosimetry - instrumentation; Optically Stimulated Luminescence Dosimetry - standards; Optically Stimulated Luminescence Dosimetry - statistics & numerical data; OSL dosimetry; Panoramic; Parotid Gland - radiation effects; Phantoms, Imaging; Radiation Dosage; Radiation Dosimeters; Radiography, Panoramic - standards; Radiography, Panoramic - statistics & numerical data; Reproducibility of Results; Thyroid Gland - radiation effects; X-ray dosimetry; Dosimetric characteristics; X-ray dosimetry; OSL dosimetry; Panoramic; Equivalent dose
• ISSN: 0969-8043; 1872-9800
• DOI: 10.1016/j.apradiso.2018.09.010

The aim of the present work is to determine dosimetric characteristics of commercial optically stimulated luminescence dosimeter (OSLD) to estimate equivalent dose in the patient undergoing panoramic radiography procedure. Digital panoramic unit “Instrumentarium OP200D” was used. OSL dosimeters were optically bleached before any exposure procedure. InLight™ OSL nanodosimeters were placed on the thyroid surface between the head and neck. The exposure parameters for all measurements was standard value consisted in 66 kV, 5 mA, and 14.1 s. Standard size field of view (FOV) scanning mode was used. Dosimeters were calibrated for the air kerma. Reported male adult equivalent doses from 21 to 45 µSv for each scanning for standard size field of view (FOV). Meanwhile reported female adult equivalent doses from 28 to 75 µSv for standard size field of view (FOV) considering all heights. The lowest equivalent dose (21 μSv) was observed in the male thyroid gland surface (S) position for medium height. The highest equivalent dose (75 μSv) was for female small height in the right parotid surface (R) position. In conclusion, the results demonstrate that OSL dosimeters are appropriate in vivo dosimetry system for dental panoramic dose measurements. •Equivalent dose in panoramic dental radiography was determined.•“In vivo” dosimetry in panoramic dental radiography was applied.•Patient dose in thyroid gland showed over exposition in dental procedures.•Dose optimization in dental procedures is suggested.