Tooth whitening with home-based bleaching products

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This Cochrane review update of the effects of home-based tooth whitening products dispensed by a dentist or over-the-counter included 71 RCTs. However, most of thetrials were small single studies of interventions of highly variable nature providing very low-certainty evidence over short time periods to support the effectiveness of home-based chemically-induced whitening.

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Whitening toothpastes have beneficial effect on staining

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This review of the effect of whitening toothpastes on tooth staining included 21 RCTs and found a significant effect on all aspects of staining in the short term.

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