Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

647 questions · 674 findings · 100 reviews

No studies found 129 · 19.1%GRADE not reported 95 · 14.1%Very low 220 · 32.6%Low 142 · 21.1%Moderate 64 · 9.5%High 24 · 3.6%

6% HP strip vs 10% CP gel in tray

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

6% HP strip showed no clear difference in tooth whitening - reported by the patient compared with 10% CP gel in tray; GRADE not reported.

1 finding from 1 review

5.9% HP strip vs 5.9% HP paint-on gel

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

It is very uncertain whether 5.9% HP strip changes tooth whitening - reported by the patient compared with 5.9% HP paint-on gel (very low certainty).

1 finding from 1 review

14% HP strip vs 9.5% HP 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 14% HP strip changes tooth whitening - assessed by the dentist compared with 9.5% HP gel in tray (very low certainty).

1 finding from 1 review

6.5% HP strip vs 16% 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)

6.5% HP strip may leads to higher tooth whitening - assessed by the dentist compared with 16% CP gel in tray (low certainty).

1 finding from 1 review

5.3% 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 5.3% HP strip changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

1 finding from 1 review

25% CP paint-on gel vs 8.75% HP 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 25% CP paint-on gel changes tooth whitening - assessed by the dentist compared with 8.75% HP paint-on gel (very low certainty).

1 finding from 1 review

9.5% adhesion HP strip vs HP strips

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 9.5% adhesion HP strip changes tooth whitening - assessed by the dentist compared with 10% HP strip (very low certainty).

1 finding from 1 review

20% CP gel in tray vs 9% HP 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 20% CP gel in tray changes tooth whitening - assessed by the dentist compared with 9% HP gel in tray (very low certainty).

1 finding from 1 review

14% HP strip vs 35% 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 14% HP strip changes tooth whitening - assessed by the dentist compared with 35% CP gel in tray (very low certainty).

1 finding from 1 review

6% HP strip vs 10% HP thin-gel strip

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 strip changes tooth whitening - assessed by the dentist compared with 10% HP thin-gel strip (very low certainty).

1 finding from 1 review

10% CP gel in tray (with desensitiser) 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% CP gel in tray (with desensitiser) changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

1 finding from 1 review

15% CP gel in tray 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 15% CP gel in tray 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 8.7% HP 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)

19% SPC paint-on gel led to lower tooth whitening - assessed by the dentist compared with 8.7% HP paint-on gel; GRADE not reported.

1 finding from 1 review

7.5% 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 shade)

It is very uncertain whether 7.5% SHMP chewing gum changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

1 finding from 1 review