The method behind every page — public, so you can hold us to it. Last revised Jun 2026.
Single oral care ingredients and practices with human research behind them — toothpaste actives, sweeteners, rinses, habits like oil pulling. We review the ingredient, not products — ours included. Multi-ingredient formulas are covered only when a trial tested the whole formula, and we say so.
PubMed, Cochrane CENTRAL, and Embase, using the ingredient's chemical and common names, plus trial registries for unpublished work. We log the search date and terms on each review. If a relevant study isn't covered, the most likely reason is that it appeared after our search date — the update history shows when that was.
Randomized controlled trials carry the most weight, then prospective cohorts, then open-label and observational work. This matters more in oral care than almost anywhere: much of remineralization research is laboratory work on extracted teeth. Useful for mechanism — but only clinical trials tell you what happens in a mouth over a year, so lab studies appear as context, never as support for a claim. Sample size, funding source, and trial design are noted in every citation line so you can weigh them yourself.
We report facts about the literature — "an 18-month trial of 189 adults found" — and keep our interpretation visibly separate. We state what a finding supports and where it stops: research supports remineralization of early-stage lesions and reduced sensitivity; it does not support repairing cavities, and we write exactly that. Amount sections state studied ranges, never recommendations.
Reverse Cavity Protocol is funded by its own product and book sales. No sponsors, no advertising, no affiliate revenue from other brands. Products never appear inside article prose, and every product module is labeled "We make this." We apply the same lens to the studies we review: much of hydroxyapatite research is manufacturer-funded, and our pages say so in the limitations, every time.
Every review is revisited within 12 months, or immediately when a significant trial publishes. Each page shows its update history. Corrections are prioritized over new content: if you find an error, tell us and we'll fix the page and log the change — not quietly edit it.
Give dental advice. Recommend amounts. Suggest any product treats a cavity or replaces a dental visit. Accept payment for coverage. Remove an unflattering finding because it hurts a product — ours or anyone's. If holding these lines ever conflicts with growth, the lines win.