期刊
JOURNAL OF DENTAL RESEARCH
卷 89, 期 5, 页码 468-472出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0022034510363248
关键词
dentin; chlorhexidine; epigallocatechin gallate; MMP; dental erosion
资金
- FAPESP [07/08389-3, 07/04209-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [07/08389-3] Funding Source: FAPESP
Matrix metalloproteinase (MMP) inhibition has been shown to reduce dentin caries progression, but its role in dental erosion has not yet been assessed. This study tested the hypothesis that gels containing MMP inhibitors (epigallocatechin gallate-EGCG and chlorhexidine) can prevent dental erosion. Volunteers (n = 10) wore palatal devices containing bovine dentin blocks (n = 10/group) treated for 1 min with EGCG at 10 (EGCG10) or 400 mu M (EGCG400), chlorhexidine at 0.012%, F at 1.23% (NaF), and no vehicle (placebo). Erosion was performed with Coca-Cola (R) (5 min) 4X/day during 5 days. The wear, assessed by profilometry (mean +/- SD, mu m), was significantly reduced by the gels containing MMP inhibitors (0.05 +/- 0.02(a), 0.04 +/- 0.02(a), and 0.05 +/- 0.02(a) for EGCG10, EGCG400, and chlorhexidine, respectively) when compared with NaF (0.79 +/- 0.35(b)) and placebo gels (1.77 +/- 0.35(b)) (Friedman and Dunn's tests, p < 0.01). The use of gels delivering MMP inhibitors was shown to prevent erosion and opens a new perspective for protection against dental erosion.
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