유기산 완충용액의 포화도가 상아질의 탈회에 미치는 영향
The influence of the degree of saturation of acidulated buffer solutions in the root dentin demineralization
0
조회
0
다운로드
1
인용
0
참고문헌
초록
Abstract
The purpose of this study is to compare and to evaluate the effects of the degree of saturation on the progression of artificial root caries lesion. A total of 8 human premolars without any defects and cracks selected and the cementum were removed and the teeth were cleaned with ultrasonic device and pumice without fluoride. Each tooth was sectioned into 6 pieces and they were ground with #800 sandpaper until they had a thickness of 200㎛. Specimens were applied with nail vanish except for the 2-3mm window area before application of bonding agent. Under the constant pH, the specimens were divided into 6 groups (degree of saturation; 0.1415, 0.1503, 0.1597, 0.1676, 0.1771, 0.1977). Each group was immersed in acid buffer solution for 1,2,3,5 days under controlled temperature (25℃) and imbibed in water and examined using the polarizing microscope. The results were as follows 1. Although the degree of saturation of demineralization solution decreased, the depth of penetration in the dentin was constant. 2. Erosion was observed on the surface of all the teeth in the group Ⅰ, Ⅱ. In the group Ⅲ, Ⅳ, Ⅴ , surfaces were not changed. The teeth in the group Ⅵ showed the more mineralized surface but not the shape of the dentinal tubules distinctively. 3. In all groups, the lesion progressed rapidly at the first day of the experiment , but increased gradually as time elapsed.
참고문헌 (29)
- "A new challenge-root caries in mature people", 127, pp.379~380 (1996)
- "Root caries in the older patient", 41, pp.763~793 (1997)
- "Prevalence and intraoral distribution of root caries in an adult population", pp.265~271
- "Root caries incidence and associated risk factors in middle-aged and older adults", 10, pp.83~89 (1993)
- "The problem of root caries Ⅰ", pp.137~86 144 (1973)
- "Prevalence of root caries among institutionalized older persons", 8, pp.84~88 (1980)
- "The art and science of oerative dentistry 3rd Ed St Louis", pp.60~128 (1995), Mosby
- "Comparisons of in vitro root caries models", 29, pp.204~209 (1995)
- "Microradiography of experimental rot surface caries in man", pp.218~224
- "A model for producing caries-like lesions in enamel and dentin using oral bacteria in vitro", 63, pp.1186~1189 (1984)
- "In vitro caries-like lesion produced by Streptococcus mutans and Actinomyces viscosus using sucrose and starch", 66, pp.795~798 (1987)
- "Histopathology of the initial lesion of the root surface an in vitro study", pp.804~809 (1985)
- "Depth of penetration of in vitro root surface lesions", 64(6), pp.897~899 (1985)
- "The mineral solubility of human dentin roots", pp.319~322 (1987)
- "Ultrastructure of human enamel specimens prepared by ion micromilling" (1973), 703-710
- "Surface areas of dental enamel comparision of experimental values with values calculated for its structural components", pp.1254~1257 (1972)
- "The vulnerability of unexposed human dentin root to demineralization", 65(7), pp.955~958 (1986)
- "The effect of acid type on kinetics and mechanism of dental enamel demineralization", 66, pp.1425~1430 (1987)
- "Physiochemical perspectives on the cariostatic mechanisms of systemic and topical fluoride", pp.606~613
- "Kinetics of hydroxyapatite dissolution" (1990)
- "The mineral phase of sound and carious human dental cementum studied by electron microscopy", pp.305~322
- "산 완충용액의 pH가 인공치근 우식의 형성에 미치는 영향", 24, pp.495~502 (1999)
- "수종의 유기산이 법랑질 인공 우식의 형성에 미치는 영향", 21, pp.470~488 (1996)
- "산 완충용액을 이용한 인공치아우식 형성", 7, pp.34~41 (1992)
- "Atomic force microscopy of acid effects on dentin", 9, pp.265~268 (1993)
- "SEM and microradiographic investigation of initial enamel caries", pp.193~201
- "Stereo electron microscopy of enamel crystallites", pp.1504~1514
- "Chemistry of enamel subsurface demineralization in vitro", 53(2), pp.226~235 (1974)
- "The mineral content of decalcified surface enamel", pp.267~274 (1974)