Evaluation of Entrance Skin Dose in the Periapical Dental X-ray Examination

Abstract

High doses of ionizing radiation can lead to adverse health outcomes such as cancer induction in humans. Although the consequences are less evident at very low radiation doses, the associated risks are of societal importance. This study aimed to evaluate entrance skin doses (ESDs) in the periodical DentalX-rayexaminations. The entrance skin dose (ESD) was measured for 200patient in both gender underwent dental X-ray examination at Radiology Department of Khartoum Dental Educational Hospital during the period extended for December 2019 to February0202. The entrance skin dose ESD was determined via measured parameters: focus to skin distance (FSD), tube current (mAs) and tube voltage (kV). Used of conventional X-ray dental units used within the safety range, the mean ESD values obtained were found to be within the standard international Reference, there is no different in the ESD between upper and lower jaw, On the basis ofthe results obtained in this study the ESD dose was measured for the upper and lower jaw and was found to be (0.017425, 0.016475) in respectively. Conclusion:Entrance surface dose were estimated in the present study for patients undergoing selected dental X-ray examination in Khartoum dental educational hospital. The mean of ESD values of upper and lower jaw in the hospital respectively (0.017425, 0.016475 mGy) less than reference levels recommended by ICRP (1.2 mGy), and no different in dose between the upper and the lower jaw