Patient dose in adult and pediatric dental panoramic radiography in Korea

Kim,  Eun-Kyung; Han,  Won-Jeong; Kim,  Kyoung-A; Lee,  Wan; Yoon,  Suk-Ja; Hwang,  Eui-Hwan; Kim,  Gyu-Tae; Heo,  Min-Suk; An,  Chang-Hyeon; An,  Seo-Young; Han,  Jin-Woo; Jung,  Yun-Hoa

J Korean Dent Assoc > Volume 55(8); 2017 > Article

The Journal of The Korean Dental Association 2017;55(8):516-526.
Published online August 31, 2017.

성인과 소아에서 치과 파노라마방사선검사의 환자선량

김은경¹, 한원정², 김경아³, 이완⁴, 윤숙자⁵, 황의환⁶, 김규태⁷, 허민석⁸, 안창현⁹, 안서영¹⁰, 한진우¹¹, 정연화¹²

^¹단국대학교 치과대학 영상치의학교실
^²단국대학교 치과대학 영상치의학교실
^³전북대학교 치의학전문대학원 영상치의학교실
^⁴원광대학교 치과대학 영상치의학교실
^⁵전남대학교 치의학전문대학원 구강악안면방사선학교실
^⁶경희대학교 치의학전문대학원 영상치의학교실
^⁷경희대학교 치의학전문대학원 영상치의학교실
^⁸서울대학교 치의학대학원 영상치의학교실
^⁹경북대학교 치의학전문대학원 영상치의학교실
^¹⁰경북대학교 치의학전문대학원 영상치의학교실
^¹¹강릉원주대학교 치과대학 구강악안면방사선학교실
^¹²부산대학교 치의학전문대학원 영상치의학교실

Patient dose in adult and pediatric dental panoramic radiography in Korea

Eun-Kyung Kim¹, Won-Jeong Han², Kyoung-A Kim³, Wan Lee⁴, Suk-Ja Yoon⁵, Eui-Hwan Hwang⁶, Gyu-Tae Kim⁷, Min-Suk Heo⁸, Chang-Hyeon An⁹, Seo-Young An¹⁰, Jin-Woo Han¹¹, Yun-Hoa Jung¹²

¹Dept. of Oral and Maxillofacial Radiology, Dankook University College of Dentistry
²Dept. of Oral and Maxillofacial Radiology, Dankook University College of Dentistry
³Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Chonbuk National University
⁴Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Won-Kwang University
⁵Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Chonnam National University
⁶Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Kyung Hee University
⁷Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Kyung Hee University
⁸Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Seoul National University
⁹Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University
¹⁰Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University
¹¹Dept. of Oral and Maxillofacial Radiology, College of Dentistry, Gangneung-Wonju National University
¹²Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Pusan National University

Abstract

Objective
To suggest diagnostic reference levels (DRLs) for dental panoramic radiography in adults and children through the nationwide survey in Korea. Materials and Methods: Two hundred twelve dental institutions on a national basis were visited. The radiographic examination protocols were surveyed and their patient doses at the clinical exposure setting for adult and children (5- and 10-year old) were measured at 244 panoramic radiographic equipment. The measured DAP were analyzed and compared according to age group, the size of hospital, the type of radiographic system, the installation duration of equipment. Results: The mean exposure parameters were 70.1 kV, 9.2 mA, 14.4 second for adult and 66.6 kV, 7.9 mA, 13.8 second for 10-year old child and 65.5 kV, 7.3 mA, 13.7 second for 5-year old child. The mean and third quartile patient DAPs were 138.3mGy;cm2 and 151.0mGy;cm2 for adult, 99.5mGy;cm2 and 104.8mGy;cm2 for 10-year old child and 89.5mGy;cm2 and 95.5mGy;cm2 for 5-year old child. The mean patient dose at the university dental hospital was lower than that at the dental clinic (p<0.05). The mean patient dose of direct digital radiography type was higher than that of film-based type. However, the difference did not show statistically significance. Conclusion: DRLs for dental panoramic radiography in adult, 10- and 5-year old child were suggested to be 151mGy;cm2, 105mGy;cm2, and 96mGy;cm2 in Korea based on this nationwide survey.

Key Words: panoramic radiography;diganostic reference level;adult;child;