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Absorbed doses in the craniofacial region during various radiographic and radiotherapeutic procedures.

The craniofacial region receives irradiation from both diagnostic and therapeutic procedures in dentistry and medicine. An estimation was made of the highest absorbed doses in the maxillofacial region following common dental and medical diagnostic and radiotherapeutic procedures. The maximum accumulated absorbed doses to the skin in the typical orthodontic patient was 30–40 mGy. The maximum values in medical radiology were 150 mGy for a single examination. The doses to patients from scattered irradiation at radiotherapy of tumors close to the facial region was within the range 0.2–20 Gy for the facial skin; measured on phantoms the doses were lower and within the range 0.2–10 Gy. The dose to the facial region during orthodontic treatment is relatively low. The higher doses to this region found for medical diagnostic radiography and radiotherapeutic procedures mainly concerns adults.