미생물이용방법에 의해 형성된 초기우식병소의 UV 레이저와 크세논 광을 이용한 진단
Early detection of artificial incipient carious Lesion formed by microbial model using UV Laser and xenon Light
송근배, 이영은, 정성숙, 김종화, 홍석진,
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송근배 ( Song Keun-Bae ) - 경북대학교 치과대학 예방치과학교실 및 BK21 사업단
이영은 ( Lee Young-Eun ) - 경북대학교 치과대학 예방치과학교실 및 BK21 사업단
정성숙 ( Jeong Seong-Soog ) - 전남대학교 치의학전문대학원 예방치과학교실
김종화 ( Kim Jong-Hwa ) - 한국기초과학지원연구원 대구센터
홍석진 ( Hong Suk-Jin ) - 전남대학교 치의학전문대학원 예방치과학교실
KMID : 0355420070310020145
Abstract
Objectives: The purpose of this study was to evaluated the effectiveness 325 nm UV laser and xenon light in the detection of the early dental caries lesion form by microbial model in vitro.
Methods: Fifty-five 3 x 3 mm bovine incisors were separated into five groups and demineralized at decalcifying solution by microbial method for 24, 43, 72 and 96 hours to prepare of early artificial caries lesions and compared with the control (n=ll) stored into the saline. After all samples were treated demineralazed for 14 days using microbial model. Surface changes were characterized with microhardness tester. Characteristics of fluorescence were measured using DIAGNOdent and Optical multichannel analyzer (OMA) with UV laser and xenoin light.
Results: In microbial model, microhardness value significantly decreased as demineralization progressed (p ( 0.05). According to OMA analysis, both UV laser and xenon light, the specimen exhibited apparent reduction of 425 nm peak or peak ratio as demineralization was progressed from control to 96 hrs. The slope of 450-550 nm also significantly decreased as demineralization progressed. When we considered the correlation among all variables, there was a highly significant correlation. The highest peak (425 nm), peak ratio (4251625 nm) and slope value (450-550 nm) by 325 nm of W laser and xenon light has shown effectiveness on the determination of the subsurface change of demineralization
formed by microbial model.
Conclusions: Microbial model used in this study is suitable for the testing of early detection of artificial incipient carious lesion. Since 325 nm UV laser and xenon light were sensitive enough to differentiate the minor changes of the enamel, it may have a high potential in the detection of promotion of remineralization of the incipient carious lesions.
키워드
레이저; 미생물이용방법; 초기우식탐지; 크세논 광
early detection; incipient carious Lesions; microbial model; UV Laser; xenon Light
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