The Oral-B iO9 toothbrush has received strong support from the scientific community. A 2026 peer-reviewed meta-analysis ranked its oscillating-rotating technology as the most effective for both plaque removal and reducing gingivitis.
Oral-B iO toothbrushes have been clinically shown to remove up to 100% more plaque than manual brushes and deliver six times more plaque removal along the gumline.
Oral-B, which describes itself as the most used and recommended toothbrush brand by dentists worldwide, announced the findings from Geneva. The company sees this new research as clear validation of its iO technology, which uses oscillating-rotating motion to break up and remove dental plaque more effectively than other designs.
The meta-analysis compared a wide range of products, systematically reviewing randomized studies. This gives the Oral-B iO a strong position among electric toothbrushes, based on current published data.
According to public statements from Oral-B, 88% of people with early gum problems saw their gum health return to a healthy state when using the iO series. The brand attributes this effectiveness to the round brush head and oscillating-rotating movement, which are designed to maximize cleaning along the gumline.
With this level of independent, peer-reviewed research, Oral-B's iO9 is now supported by measurable clinical outcomes, not just marketing claims.
An independent summary from Agence France-Presse confirmed the main clinical findings, especially the iO's effectiveness along the gumline compared to manual brushes. English-language market coverage on September 17, 2026, highlighted the broad impact of the meta-analysis and the growing agreement on the Oral-B iO's performance.
Oral-B's official materials state that the iO series delivers a "clinically proven" effect when used twice daily, and that its electric brushes remove twice as much plaque as manual brushes. These claims are now backed by a substantial body of independent research, setting a new standard for evidence-based oral care technology.
