Guides

Dental and oral health

Research-based guides to supplements sold for teeth, gums and fresh breath. Each guide covers the label, the research and the real cost, based on published research, not personal testing.

Before any supplement: the American Dental Association recommends brushing twice a day with fluoride toothpaste, cleaning between your teeth once a day, limiting sugary drinks and snacks, and seeing your dentist regularly (ADA MouthHealthy). A supplement is, at most, an extra.

Our guides

ProDentim: What's Actually in It, and What the Research Says

An oral-health probiotic chewable. Only one of its three strains has much research for the mouth, and the label doesn't disclose amounts.

Research last updated September 28, 2026

Want to know how we judge the evidence? Read how we research.

Free: 5 questions to ask before you buy any dental supplement

A one-page checklist to help you judge any dental supplement before you spend money on it. It appears on the next page as soon as you sign up.

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