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According to ALARA principle for radiation protection, dentists must expose patients to lowest possible radiation with sufficient quality of imaging. Radiation exposure arising from dental radiology is considered low; a child may undergo repeated dental radiological procedures throughout childhood and adolescence. [...]the risks associated with cumulative doses should be taken into consideration (1).The thyroid gland is more susceptible to radiation exposure during dental radiographic exams given its anatomic position, particularly to children (2, 3). According to new Basic Safety Standard for procedures using medical radiological equipmentmust put in placespecific diagnostic reference levels (DRLs) also DRLs are recommended by the International Commission of Radiological Protection (ICRP) (5). CONCLUSION From results, we conclude that the mean of DAP (mGy cm2) for single intraoral examination is 26.8, 29.6 and 39.7 for incisor, premolar and molar, respectively. [...]the mean of DAP (mGy cm2) value for panoramic dental radiology is 62.7, 74.1 and 90.3 for child, adult and large adult, respectively. 3rd quartile are calculated Recommended DRLs value, for intraoral radiography programs: incisor, premolar and molar are: 28.5, 36.5 and 50.3 mGy cm2, respectively.