구강내 아말감 제거가 어린이 뇨중 수은농도에 미치는 영향: 예비연구
Impact of amalgam removal on urinary mercury concentration in children: a pilot study
진혜정, 김은경, 우경지, 임상욱, 송근배, 최연희,
소속 상세정보
진혜정 ( Jin Hye-Jung ) - 경북대학교 치의학전문대학원 예방치과학교실
김은경 ( Kim Eun-Kyong ) - 경북대학교 치의학전문대학원 예방치과학교실
우경지 ( Woo Gyeong-Ji ) - 경북대학교 치의학전문대학원 예방치과학교실
임상욱 ( Im Sang-Uk ) - 경북대학교 치의학전문대학원 예방치과학교실
송근배 ( Song Keun-Bae ) - 경북대학교 치의학전문대학원 예방치과학교실
최연희 ( Choi Youn-Hee ) - 경북대학교 치의학전문대학원 예방치과학교실
KMID : 0355420130370040194
Abstract
Objectives: This pilot study aimed to evaluate the effect of dental amalgam, a restorative material, on children by measuring the mercury concentration in the urine as well as the number of teeth filled with dental amalgam.
Methods: Twenty children enrolled in grades 1-4 of two elementary schools in Daegu participated in this study. One trained dentist performed oral examinations and removed amalgam restorations from the teeth with a high and low speed handpiece. In order to measure the urinary mercury concentrations, urine samples were collected from all participants at baseline and immediately and 24 hours after removal of the dental amalgam restorations.
Results: The mean number of teeth from which the amalgam restorations was removed was 9.8 while the mean urinary mercury concentrations at baseline, immediately, and 24 hours after removal of dental amalgam restorations were 2.66, 2.76, and 2.76 μg/g creatinine, respectively. The mean urinary mercury concentration increased consistently after amalgam restoration removal. For those participants whose removed amalgamated surfaces were more than 11, the mean urinary mercury concentration immediately after amalgam restoration removal and 24 hours after removal increased consistently but showed no significant difference.
Conclusions: This study demonstrated that dental amalgam restoration was related to urinary mercury concentration, and these findings present a possibility of mercury accumulation in the body. Therefore, we suggest future longitudinal studies to ensure the safety of children exposed to mercury by establishing criteria for amalgam removal.
키워드
Amalgam removal; Children; Urinary mercury concentration
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