Measurement of entrance skin dose and organ dose in cephalometry

TL dosimetry is known as one of the effective dose estimation methods in diagnostic radiology. Cephalometry is used by dentists, oral and maxillofacial surgeons to choose the appropriate treatment. The purpose of this study is to measure the entrance skin dose, and dose to different organs of the patients in cephalometry using TLD-100. The entrance skin, and organ dose were obtained by putting TLDs on the surface, and inside the Rando phantom. The dose to different organs like thyroid, eyes, maxilla, parotid, sub-lingual, and submandibular salivary glands were measured. According to the results obtained in this study, the entrance skin dose to neck, cheek, and temporal are 75.8, 58.1, 113.3 µGy, while minimum, and maximum organ doses were 2.5, and 107.8 µGy for right temporal, and right parotid salivary gland.