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[Experimental study on polyphenol anti-plaque effect in human].

T Liu1, Y Chi

  • 1Department of Stomatology, Affiliated Hospital of Shandong Traditional Chinese Medical University, Jinan 250011, China.

Zhonghua Kou Qiang Yi Xue Za Zhi = Zhonghua Kouqiang Yixue Zazhi = Chinese Journal of Stomatology
|January 10, 2002
PubMed
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Chinese green tea polyphenols show significant anti-plaque effects. This oral health benefit was observed in studies using polyphenol tablets, reducing plaque index effectively.

Area of Science:

  • Oral Health
  • Natural Products Chemistry
  • Preventive Dentistry

Background:

  • Dental plaque accumulation is a primary factor in caries development.
  • Green tea polyphenols possess known antioxidant and antimicrobial properties.
  • Investigating natural compounds for oral health benefits is an active research area.

Purpose of the Study:

  • To assess the anti-caries potential of Chinese green tea polyphenols.
  • To evaluate the efficacy of a green tea polyphenol tablet formulation.
  • To determine the duration of the anti-plaque effect.

Main Methods:

  • A randomized controlled trial involving 150 volunteers.
  • Three groups were established: two test groups receiving polyphenol tablets and one control group receiving a placebo.

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  • Intervention involved daily tablet administration for specified periods, with a washout phase for one test group.

    • Main Results:

    • Polyphenol tablet consumption significantly reduced plaque index compared to placebo (P < 0.01).
    • The anti-plaque effect persisted for at least three weeks after cessation of polyphenol intake.
    • Early intervention (2 weeks) showed measurable plaque reduction.

    Conclusions:

    • Chinese green tea polyphenol tablets demonstrate a clear and significant anti-plaque efficacy.
    • The observed benefits suggest a potential role for green tea polyphenols in caries prevention strategies.
    • The sustained effect indicates a lasting impact on oral microbial balance.