The American Dental Association runs a Seal of Acceptance program with a public product search, and a toothbrush either appears in it or does not. We walked that register in full in August 2026 and collected all 182 accepted products, which covers everything from mouthrinse to athletic mouthguards. Three of the five brushes here are in it: the Oral-B iO Series, the quip Non-Rechargeable and the Waterpik Sonic-Fusion. Burst does not appear in the register at all. Philips does appear, once, and the entry is the Sonicare Power Flosser rather than any of its toothbrushes.
Two things make the register easy to misread. The acceptance statements are not identical, so quote the one attached to the product you are buying: the Waterpik entry is accepted for plaque "along the gumline and between teeth", while the Oral-B and quip entries say plain "removing plaque". And an entry is pinned to a model, not to a brand. The ADA lists "quip Electric Toothbrush - Non-Rechargeable", which is the AAA powered brush, so quip's rechargeable Rev is a different product as far as that entry is concerned.
The Seal is voluntary and a missing entry is not evidence that a brush is bad. A maker has to apply, submit evidence and wait, and it can decide that is not worth doing. What the Seal does tell you is which claims somebody outside the company has agreed to put their name on. Where that outside opinion does not exist, the only thing left is the maker.