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KMID : 0357520150380030199
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Journal of Radiological Science and Technology
2015 Volume.38 No. 3 p.199 ~ p.203
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Reduction of Entrance Surface Dose Depending on Shielding Methods for Panoramagraphy
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Choi Jung-Hyun
Kim Sung-Chul
Han Dong-Kyoon
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Abstract
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Panoramagraphy was the second most used intraoral radiography utilized in Korea, resulting in 17.8% in university dental hospitals, 24.8% in dental hospitals, and 31.4% in dental clinics. Depending on increased demand like orthodontics and implant, panoromagraphy tends to consistently increase. This study were used lead glasses and lead shielding to reduce unnecessary radiation to the eyeballs and thyroid. ESD was 41.4% when radiation was shielded with the lead glasses while reducing 47.3% of ESD by shielding the X-ray tube area with shielding lead. There was no statistically significant difference.The lead glasses is appropriated to reduce unnecessary radiation exposure to the eyeballs.
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KEYWORD
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Panoramagraphy, Entrance Surface Dose, Eyeball, Lead glasses
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