Overview on Adjunct Ingredients Used in Hydroxyapatite-Based Oral Care Products

Joachim Enax, Bennett T. Amaechi, Erik Schulze zur Wiesche, Frederic Meyer

Research output: Contribution to journalReview articlepeer-review

5 Scopus citations

Abstract

Hydroxyapatite, Ca5(PO4)3(OH), is a biomimetic active ingredient, which is used in commercial oral care products such as toothpastes and mouthwashes worldwide. Clinical studies (in vivo) as well as in situ and in vitro studies have shown the preventive effects of hydroxyapatite in various field of oral care. In some products, hydroxyapatite is combined with other active ingredients, to achieve an additional antibacterial effect or to promote gum health. This review analyzes the efficacy of six selected natural and nature-inspired ingredients that are commonly used together with hydroxyapatite. These additional actives are either antibacterial (lactoferrin, xylitol, and zinc) or promote gum health (allantoin, bisabolol, and hyaluronic acid). A systematic literature search was performed, and all studies found on each ingredient were analyzed. In summary, all analyzed ingredients mentioned in this review are well described in scientific studies on their beneficial effect for oral health and can be used to expand the preventive effect of hydroxyapatite in oral care products.

Original languageEnglish (US)
Article number250
JournalBiomimetics
Volume7
Issue number4
DOIs
StatePublished - Dec 2022

Keywords

  • allantoin
  • bisabolol
  • hyaluronic acid
  • hydroxyapatite
  • lactoferrin
  • toothpaste
  • xylitol
  • zinc

ASJC Scopus subject areas

  • Bioengineering
  • Molecular Medicine
  • Biochemistry
  • Biotechnology
  • Biomedical Engineering
  • Biomaterials

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