Question · asked by 1 review
4% SHMP chewing gum vs placebo: Tooth whitening - assessed by the dentist
- Population
- Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline shade)
- Intervention
- 4% SHMP chewing gum
- Comparison
- placebo
- Outcome
- Tooth whitening - assessed by the dentist
It is very uncertain whether 4% SHMP chewing gum changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
4% SHMP chewing gum vs Placebo Tooth whitening - assessed by the dentist · Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline… · 12 weeks It is very uncertain whether 4% SHMP chewing gum changes tooth whitening - assessed by the dentist compared with placebo (very low certainty). Home‐based chemically‐induced whitening (bleaching) of teeth in adults (2018) · Cochrane All outcomes | MD -0.14 [-0.38, 0.10] | 1 study · 108 participants | Very low |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Home‐based chemically‐induced whitening (bleaching) of teeth in adults 2018 · Cochrane All outcomes | 2018-06 | Not listed | Not assessed |
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.