[Estimation of effective dose to salivary glands at examination of the oral and maxillofacial region].
The salivary glands and the oral mucosa were included in the determination of effective doses of radiography in the new ICRP (International Commission on Radiological Protection) recommendations. These changes will likely result in an upward reassessment of the effective dose during oral and maxillofacial radiographic examination. We measured the dose received by many organs and calculated the effective doses using the guidelines in ICRP Publications 103 and 60. For this study, we used intraoral radiography (incisor, canine, premolar, molar, maxillary, and mandibular areas) and panoramic radiography. The two levels of effective doses were compared. As a result, exposure during intraoral radiography ranged from 4 to 8 microSv and that during panoramic radiography ranged from 16 microSv in Publication 103. Effective doses in Publication 103 were higher than those in Publication 60. The dose was 1.6-4.5 times higher in intraoral radiography and 2.2 times higher in panoramic radiography. In conclusion, the salivary glands markedly influenced the value of the effective doses of radiography in this study.
Okano
Tsuneichi
T
Department of Oral and Maxillofacial Radiology, School of Dentistry, Aichi-Gakuin University, Japan.
Matsuo
Ayae
A
Gotoh
Kenichi
K
Yokoi
Midori
M
Hirukawa
Akiko
A
Okumura
Shinji
S
Koyama
Shuji
S
D005145:Face / Q000000981:diagnostic imaging*; D006801:Humans; D007568:Jaw / Q000000981:diagnostic imaging*; D009055:Mouth / Q000000981:diagnostic imaging*; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011862:Radiography, Panoramic; D012469:Salivary Glands / Q000528:radiation effects*