Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Tooth whitening ‐ assessed by the dentist | 1 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
| 1.1 10% HP strip versus 2% HP mouthwash | 1 | 28 | Mean Difference (IV, Random, 95% CI) | ‐1.10 [‐1.49, ‐0.71] |
