Introduction. As a consequence of radio-terrorism or nuclear-radiological accidents dispersion of 131I can lead to internal contamination resulting in salivary gland damage. 99mTc salivary scintigraphy is a simple and confident technique for measuring indices of salivary gland function quantitatively by which the severity of salivary gland dysfunction can be determined. The chance of the accidents are significantly higher among active, employed people (18-50 yr).The objective of our study is collecting a normal data base of quantitative indices for salivary scintigraphy in this age group as a base for post-accident evaluation of victims. Material and Methods. Dynamic salivary gland scintigraphy was performed for 120 consecutive patients (18-50yr mean 31.6) excluding those with signs or symptoms of xerostmia. From 30 second frames time-activity curve was extracted and post-stimulatory excretion fraction (EF) and relative integral of uptake (Int%) was calculated for each major salivary gland. Results. Mean EF with 95% confidence interval for parotid and submandibular was 77-79.5% and 58.8-61.5% respectively. Mean Int% for parotid and submandibular was 27.3-29% and 21-22.5% respectively. Generally Int% of parotid and submandibular in 95% of the patients was >15% and >10.7% respectively and EF of parotid and submandibular in 95% of the patients was >57% and >36.8% respectively. Discussion. The normal ranges can be used in working patients suspected for salivary gland dysfunction after an accident.
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