법랑질 병소 회복율 평가를 위한 QLF 기술의 적용
Application of the QLF technology to monitor recovery rates of enamel caries lesions with human saliva
김경민, 구혜민, 이은송, 강시묵, Jong Elbert de Josselin de, 권호근, 김백일,
소속 상세정보
김경민 ( Kim Gyung-Min ) - 연세대학교 치과대학 예방치과학교실
구혜민 ( Ku Hye-Min ) - 연세대학교 치과대학 예방치과학교실
이은송 ( Lee Eun-Song ) - 연세대학교 치과대학 예방치과학교실
강시묵 ( Kang Si-Mook ) - 연세대학교 치과대학 예방치과학교실
( Jong Elbert de Josselin de ) - 연세대학교 치과대학 예방치과학교실
권호근 ( Kwon Ho-Keun ) - 연세대학교 치과대학 예방치과학교실
김백일 ( Kim Baek-Il ) - 연세대학교 치과대학 예방치과학교실
KMID : 0362720170550020048
Abstract
Purpose: The aim of this in vitro study was to assess changes in remineralization by stimulated human saliva over a short period of 48 hours with quantitative light-induced fluorescence (QLF) technology.
Materials and Methods: Bovine incisor surfaces were demineralized for 10 days. Two types of stimulated saliva were collected from 7 healthy persons. 24 hours after tooth brushing (Stimulated saliva group) and immediately after tooth brushing with 1,000 ppm NaF dentifrice (Dentifrice saliva group). The specimens were immersed in saliva and fluorescence images were obtained by QLF-digital (QLF-D biluminatorTM?) at 2, 4, 6, 12, 24, and 48 hours fluorescence loss ( F%) of the lesions. A paired t-test was performed to assess fluorescence differences between before ( Fbaseline) and after ( Ftreatment time) the remineralization process.
Results: Before the remineralization, the mean Fbaseline of the initial demineralized specimens was -18.42 0.15 (%). In both groups, the F values obtained at baseline and after 2 hours were statistically significant (P < 0.001), indicating recovery of the lesions by approximately 40% after 2 hours. After 48 hours, remineralization rates were slightly higher (49%) for the stimulated saliva group than for the dentifrice saliva group (41%), but the difference was not statistically significant.
Conclusions: With QLF minute degrees of remineralization by saliva can be measured in periods as short as 2 hours.
Additionally no significantly higher effects of remineralization were observed in the dentifrice saliva group when compared to the stimulated saliva group.
키워드
Remineralization; QLF; Incipient caries lesion
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