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법랑질 병소 회복율 평가를 위한 QLF 기술의 적용

Other Titles
 Application of the QLF technology to monitor recovery rates of enamel caries lesions with human saliva 
 김경민  ;  구혜민  ;  이은송  ;  강시묵  ;  Elbert de Josselin de Jong  ;  권호근  ;  김백일 
 Journal of the Korean Dental Association (대한치과의사협회지), Vol.55(2) : 156-164, 2017 
Journal Title
Journal of the Korean Dental Association(대한치과의사협회지)
Issue Date
Remineralization ; QLF ; Incipient caries lesion
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.
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2. College of Dentistry (치과대학) > Dept. of Preventive Dentistry and Public Oral Health (예방치과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Others (기타) > 1. Journal Papers
Yonsei Authors
Kwon, Ho Keun(권호근)
Kim, Baek Il(김백일) ORCID logo https://orcid.org/0000-0001-8234-2327
Lee, Eun Song(이은송) ORCID logo https://orcid.org/0000-0002-2949-4783
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