Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

331 questions · 353 findings · 56 reviews

No studies found 41 · 11.6%GRADE not reported 74 · 21%Very low 128 · 36.3%Low 66 · 18.7%Moderate 32 · 9.1%High 12 · 3.4%

10% HP strip vs placebo

Tooth whitening - assessed by the dentist · Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline shade)

It is very uncertain whether 10% HP strip changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

2 findings from 1 review

6% HP paint-on gel vs placebo

Tooth whitening - assessed by the dentist · Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline shade)

It is very uncertain whether 6% HP paint-on gel changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

1 finding from 1 review

10% CP gel in tray + KN + NaF vs 10% CP gel in tray

Tooth whitening - assessed by the dentist · Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline shade)

It is very uncertain whether 10% CP gel in tray + KN + NaF changes tooth whitening - assessed by the dentist compared with 10% CP gel in tray (very low certainty).

1 finding from 1 review

SPC paint-on gel vs 18% CP paint-on gel

Tooth whitening - assessed by the dentist · Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline shade)

It is very uncertain whether 19% SPC paint-on gel changes tooth whitening - assessed by the dentist compared with 18% CP paint-on gel (very low certainty).

1 finding from 1 review