Bizhang 2017.

Methods	Title: effectiveness of a new non‐hydrogen peroxide bleaching agent after single use ‐ a double‐blind placebo‐controlled short‐term study Trial design: double‐blinded randomised placebo‐controlled trial Location: not reported in abstract Number of centres: 1 Recruitment period: not reported in abstract Funding source: not reported in abstract
Participants	Participants: not reported Total number: 40 Inclusion criteria: not reported in abstract Exclusion criteria: not reported in abstract Number randomised: 40 Method of randomisation: not reported in abstract Method of allocation concealment: not reported in abstract Method of blinding: not reported in abstract Number evaluated: not reported in abstract
Interventions	Total number of intervention groups: 2 Over‐the‐counter product Placebo Duration of treatment: 1 day
Outcomes	Improvement in tooth shade
Notes	Yet to procure full text for this article