Cross-Sectional Microhardness of Human Enamel Subjected to Erosive, Cariogenic or Combined Erosive/Cariogenic Challenges

被引：6

作者：

Honorio, H. M. ^{[6
]}

Rios, D. ^{[3
,4
,5
]}

Santos, C. F. ^{[2
]}

Magalhaes, A. C. ^{[2
]}

Delbem, A. C. B. ^{[1
]}

Buzalaf, M. A. R. ^{[2
]}

Machado, M. A. A. M. ^{[3
,4
,5
]}

机构：

[1] Sao Paulo State Univ, Aracatuba Dent Sch, Dept Child & Social Dent, Aracatuba, Brazil

[2] Univ Sao Paulo, Fac Dent Bauru, Dept Biol Sci, Bauru, SP, Brazil

[3] Univ Sao Paulo, Fac Dent Bauru, Dept Pediat Dent, Bauru, SP, Brazil

[4] Univ Sao Paulo, Fac Dent Bauru, Dept Orthodont, Bauru, SP, Brazil

[5] Univ Sao Paulo, Fac Dent Bauru, Dept Publ Hlth, Bauru, SP, Brazil

[6] Alfenas Fed Univ, Dept Pediat Dent, Alfenas, Brazil

来源：

CARIES RESEARCH | 2010年 / 44卷 / 01期

关键词：

Dental caries; Dental erosion; Enamel; IN-VITRO; STREPTOCOCCUS-MUTANS; DEMINERALIZATION; FLUORIDE; SITU; REMINERALIZATION; LESIONS; CARIES; SALIVA;

D O I：

10.1159/000275571

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This in situ study evaluated the interaction between caries and erosion processes. In the first phase, enamel specimens were subjected to erosion without dental plaque (EO) or to erosion with plaque (EP); in the second phase, they were subjected to erosion plus cariogenic challenge (EC) or cariogenic challenge (CO), both with plaque accumulation. Cross-sectional hardness data (10-330 mu m depth) were tested using ANOVA (alpha = 0.05). EO and EP showed surface softening to 10 mu m depth. CO and EC produced subsurface lesions, of similar depth (up to 220 mu m), with CO showing higher integrated loss of hardness than EC, indicating that cariogenic and erosive challenges did not have an additive effect. Copyright (C) 2010 S. Karger AG, Basel

引用

页码：29 / 32

页数：4

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