Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

156 questions · 165 findings · 14 reviews

No studies found 23 · 13.9%GRADE not reported 23 · 13.9%Very low 70 · 42.4%Low 25 · 15.2%Moderate 18 · 10.9%High 6 · 3.6%

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

CP gel in tray vs CP gel in tray

Adverse effects · Adults (>=18 years) undergoing home-based bleaching (including tetracycline- and smoking-stained teeth, any baseline shade)
1 finding from 1 review

20% CP gel in tray vs 7.5% 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 20% CP gel in tray changes tooth whitening - assessed by the dentist compared with 7.5% HP gel in tray (very low certainty).

2 findings from 1 review

5.3% HP strip vs 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 5.3% HP strip changes tooth whitening - assessed by the dentist compared with 5% HP gel in tray (very low certainty).

1 finding from 1 review