Biomimetic approach for root caries prevention using a proanthocyanidin-rich agent

Caries Res. 2011;45(5):443-7. doi: 10.1159/000330599. Epub 2011 Aug 23.

Abstract

The aim of this study was to evaluate the effects of a proanthocyanidin-rich grape seed extract (GSE) on the in vitro demineralization of root dentine. Root fragments were obtained from sound human teeth. The fragments were randomly assigned to different treatments solutions: GSE, fluoride (F), GSE+F and distilled water (control). Samples were treated daily for 30 min and subjected to a pH cycling artificial caries protocol using demineralization cycles (2.2 mM CaCl(2)×H(2)O, 2.2 mM KH(2)PO(4), 50 mM acetic acid, pH 4.3) for 6 h and remineralization cycles (20 mM HEPES, 2.25 mM CaCl(2)×H(2)O, 1.35 mM KH(2)PO(4), 130 mM KCl, pH 7.0) for 17.5 h. Mineral loss (ΔZ) and lesion depth (LD) were determined after 18 days of treatment/pH cycling, by transverse microradiography. GSE was able to minimize ΔZ and LD compared with the control group (p < 0.0001). The GSE+F and F groups showed the lowest values of ΔZ and LD (p < 0.05), with no statistically significant differences between them (p = 0.554 and p = 0.726, respectively). A biomimetic approach to strengthen root dentine using GSE results in decreased rates of root demineralization and may be used in conjunction with F to prevent root caries.

Publication types

  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, N.I.H., Extramural

MeSH terms

  • Acetic Acid / adverse effects
  • Biomimetic Materials / therapeutic use*
  • Cariostatic Agents / therapeutic use
  • Dentin / drug effects
  • Dentin / pathology
  • Grape Seed Extract / therapeutic use*
  • Humans
  • Hydrogen-Ion Concentration
  • Microradiography
  • Minerals / analysis
  • Proanthocyanidins / therapeutic use*
  • Root Caries / pathology
  • Root Caries / prevention & control*
  • Sodium Fluoride / therapeutic use
  • Time Factors
  • Tooth Demineralization / pathology
  • Tooth Demineralization / prevention & control
  • Tooth Remineralization / methods
  • Tooth Root / drug effects
  • Tooth Root / pathology
  • Vitis*

Substances

  • Cariostatic Agents
  • Grape Seed Extract
  • Grape Seed Proanthocyanidins
  • Minerals
  • Proanthocyanidins
  • Sodium Fluoride
  • Acetic Acid