Kelsey O’Hagan-Wong · Odontology 2021 · narrative review · n=?

The use of hydroxyapatite toothpaste to prevent dental caries

Cited 131 times in the scientific literature.

Level 5 - mechanism / opinion, no new human data

Narrative review without systematic search or meta-analytic pooling

OpenAlex W3214961941 · doi:10.1007/s10266-021-00675-4 · record verified 2026-08-28

What was done

This narrative review summarizes recent in vitro, in situ, and in vivo research evaluating the remineralization potential of micro- and nanocrystalline hydroxyapatite toothpaste as a fluoride-free anti-caries agent, along with other dental applications.

What was found

The abstract reports no numerical findings, effect sizes, or statistical metrics. It states qualitatively that hydroxyapatite particles deposit on and restore demineralized enamel surfaces.

Why it matters

It highlights the mechanistic and experimental basis for hydroxyapatite toothpaste as an alternative fluoride-free option for dental caries prevention.

Limits

As a narrative review, it does not use systematic search or meta-analytic methodology. The abstract provides no quantitative data, sample sizes, or direct comparative evidence against standard fluoride dentifrices.

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