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논문 기본 정보

자료유형
학술저널
저자정보
Cho, Eun-Sang (School of Dentistry, Chonnam National University) Choi, Kun-Ho (School of Dentistry, Chonnam National University) Kim, Min-Gyu (School of Dentistry, Chonnam National University) Lim, Hoi-Jeong (Department of Orthodontics, School of Dentistry, Chonnam National University) Yoon, Suk-Ja (Department of Oral & Maxillofacial Radiology, School of Dentistry, Chonnam National University) Kang, Byung-Cheol (Department of Oral & Maxillofacial Radiology, School of Dentistry, Chonnam National University)
저널정보
대한영상치의학회 대한구강악안면방사선학회지 대한구강악안면방사선학회지 제35권 제4호
발행연도
2005.1
수록면
203 - 205 (3page)

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초록· 키워드

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Purpose: This study was aimed to compare skin entrance dose of digital radiography with that of film radiography and to show the dose reduction achievement with digital systems at 11 dental schools in Korea. Materials and Methods: Forty six intraoral radiographic systems in 11 dental schools were included in this study. Digital sensors were used in 33 systems and film was used in 13 systems. Researchers and the volunteer visited 11 dental schools in Korea. Researchers asked the radiologic technician (s) at each school to set the exposure parameters and aiming the x-ray tube for the periapical view of the mandibular molar of the volunteer. The skin entrance doses were measured at the same exposure parameters and distance by the technician for each system with a dosimeter (Multi-O-Meter : Unfors instruments, Billdal, Sweden). Results: The median dose was $491.2{\mu}Gy$ for digital radiography and $1,205.0{\mu}Gy$ for film radiography. The skin entrance dose in digital radiography was significantly lower than that of film radiography (p<0.05). Conclusion: Fifty-nine percent skin entrance dose reduction with digital periapical radiography was achieved over the film radiography in Korean dental schools.

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