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완충 용액의 유산 농도와 pH가 법랑질의 재광화에 미치는 영향

Other Titles
 THE EFFECT OF LACTIC ACID CONCENTRATION AND pH OF LACTIC ACID BUFFER SOLUTIONS ON ENAMEL REMINERALIZATION 
Authors
 권중원  ;  서덕규  ;  송윤정  ;  이윤  ;  이찬영 
Citation
 Journal of Korean Academy of Operative Dentistry (대한치과보존학회지), Vol.33(6) : 507-517, 2008 
Journal Title
Journal of Korean Academy of Operative Dentistry(대한치과보존학회지)
ISSN
 1225-0864 
Issue Date
2008
Keywords
Dental caries ; Demineralization ; Remineralization ; Lactic acid ; pH ; Polarizing microscopy ; Micro-computed tomography
Abstract
There are considerable in vitro and in vivo evidences for remineralization and demineralization occurring simultaneously in incipient enamel caries. In order to "heal" the incipient dental caries, many experiments have been carried out to determine the optimal conditions for remineralization. It was shown that remineralization is affected by different pH, lactic acid concentrations, chemical composition of the enamel, fluoride concentrations, etc. Eighty specimens from sound permanent teeth without demineralization or cracks, 0.15 mm in thickness, were immersed in lactic acid buffered demineralization solutions for 3 days. Dental caries with a surface zone and subsurface lesion were artificially produced. Groups of 10 specimens were immersed for 10 or 12 days in lactic acid buffered remineralization solutions consisting of pH 4.3 or pH 6.0, and 100, 50, 25, or 10 mM lactic acid. After demineralization and remineralization, images were taken by polarizing microscopy (x100) and micro-computed tomography. The results were obtained by observing images of the specimens and the density of the caries lesions was determined. 1.As the lactic acid concentration of the remineralization solutions with pH 4.3 was higher, the surface zone of the carious enamel increased and an isotropic zone of the subsurface lesion was found. However, the total decalcification depth increased at the same time. 2.In the remineralization solutions with pH 6.0, only the surface zone increased slightly but there was no significant change in the total decalcification depth and subsurface zone. In the lactic acid buffer solutions with the lower pH and higher lactic acid concentration, there were dynamic changes at the deep area of the dental carious lesion.
Files in This Item:
T200803132.pdf Download
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Conservative Dentistry (보존과학교실) > 1. Journal Papers
Yonsei Authors
Seo, Deog Gyu(서덕규)
Lee, Chan Young(이찬영)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/108066
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