J Korean Acad Oral Health.  2016 Jun;40(2):79-84. 10.11149/jkaoh.2016.40.2.79.

Gingival absorption of α-tocopherol acetate and 18β-glycyrrhetinic acid : in vitro evaluation in reconstructed gingival tissue

Affiliations
  • 1Research Park, LG Household & Healthcare Ltd., Daejeon, Korea. shleek@lgcare.com

Abstract

OBJECTIVES: To assess the absorption of α-tocopherol acetate and 18β-glycyrrhetinic acid, which are used as active ingredients in toothpaste, into a reconstructed gingival tissue.
METHODS
EpiGingival™ tissues were treated with a 25% slurry of toothpaste containing 2% α-tocopherol acetate and 0.3% 18β-glycyrrhetinic acid, for 2 minutes. The treatment was repeated up to 6 times, with 1 hour intervals. After completion of all treatments, the active ingredients in the tissue extracts and receiver solutions were measured by high performance liquid chromatography.
RESULTS
Although α-tocopherol acetate was not detected, α-tocopherol was detected in the tissue extracts, indicating that α-tocopherol acetate was bioconverted to α-tocopherol after absorption. We could detect 18β-glycyrrhetinic acid both in the tissue extracts and in the receiver solutions, with a positive correlation to the number of treatments.
CONCLUSIONS
We found that our toothpaste effectively delivered α-tocopherol acetate and 18β-glycyrrhetinic acid to a reconstructed gingival tissue in vitro.

Keyword

Absorption; α-Tocopherol acetate; 18β-Glycyrrhetinic acid; Periodontal disease; Toothpaste
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