Diagnostic reference levels for intraoral periapical and panoramic radiography

Kim, Eun-Kyung; Han, Won-Jeong; Choi, Jin-Woo; Heo, Min-Suk; Lee, Sam-Sun; Kim, Kyoung-A; Lee, Wan; Kim, Jin-Soo; Yoon, Suk-Ja; Jung, Yun-Hoa; Kim, Gyu-Tae; Jeon, Kug Jin; Han, Jin-Woo; An, Seo-Young

doi:2021.59.10.550

J Korean Dent Assoc > Volume 59(10); 2021 > Article

ORIGINAL ARTICLE

Journal of Korean Dental Association 2021;59(10):550-565.
DOI: https://doi.org/10.22974/jkda.2021.59.10.002 Published online September 30, 2021.

우리나라의 구내 치근단 및파노라마방사선촬영의 진단참고수준

김은경¹

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

Diagnostic reference levels for intraoral periapical and panoramic radiography

Eun-Kyung Kim¹

, Wan Lee⁴

, Jin-Woo Han¹⁰

, Seo-Young An¹¹

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

Correspondence: Eun-Kyung Kim, Tel: 82-41-550-0219,
Email: ekkim@dankook.ac.kr

Received: 3 August 2021 • Revised: 12 August 2021 • Accepted: 27 August 2021

Abstract

Objective
The objective of this study was to suggest the diagnostic reference levels for intraoral and panoramic radiography through the nationwide survey at regular intervals in South Korea.
Study Design
One hundred twenty-six dental institutions from all regions of South Korea were visited. Information on radiographic equipment and clinical exposure parameter was recorded at 118 intraoral and 125 panoramic equipment. Patient entrance dose (PED) and dose-area product (DAP) in intraoral radiography and DAP in panoramic radiography were measured using a DAP meter.
Results
Third quartile PED and DAP of intraoral radiography in adults were 1.5 mGy and 46.0 mGy cm², those in 12-year-old children 1.2 mGy and 37.1 mGy cm² and those in 6-year-old children 1.0 mGy and 29.9 mGy cm². Third quartile DAP of panoramic radiography in adults, 12, and 6-year-old children were 227 mGy cm², 175 mGy cm², 163 mGy cm², respectively. The median exposure parameters of intraoral radiography in adults were 60kV, 6mA, and 0.23 seconds and those in 12-year-old children 60kV, 6mA, and 0.16 seconds and those in 6-year-old children 60kV, 6mA, and 0.15 seconds. The median exposure parameters of panoramic radiography in adults were 74kV, 10mA, and 13.6 seconds and those in 12-yearold children 67kV, 10mA, and 13.2 seconds and those in 6-year-old children 67kV, 8mA, and 12.0 seconds.
Conclusion
As the national DRLs for intraoral radiography and panoramic radiography in Korea, we recommended 1.5 mGy and 227 mGy cm² for adults, 1.2 mGy and 175 mGy cm² for 12-year-old children, and 1.0 mGy and 163 mGy cm² for 6-year-old children, respectively.

Key Words: Radiation Protection; Radiation Dosage; Radiography, Dental; Radiography, Panoramic