Teeth whitening toothpaste and laser whitening are effective at whitening teeth
the verdict
SUPPORTED
the evidence backs this
confidence 84/100
Both whitening toothpastes and light-assisted (laser or LED) in-office treatments are supported by clinical evidence as effective methods for achieving noticeable tooth whitening.
Evidence for · 2
Comparison of Whitening Dentifrices on the Effectiveness of In-office Tooth Bleaching: A Double-blind Randomized Controlled Clinical Trial
2019 · cited by 21
The clinical trial found that participants using whitening dentifrices observed brighter tooth colors after bleaching compared to those using regular dentifrice.
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More for · 1
Light-Assisted In-Office Tooth Whitening: A Pilot Randomized Clinical Trial Using Digital Spectrophotometry
2026 · cited by 0
The clinical trial demonstrated that light-assisted in-office whitening protocols, including diode laser activation, produced immediate, clinically perceptible tooth color changes.