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%

6% HP strip vs 19% SPC paint-on film

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

6% HP strip led to higher tooth whitening - assessed by the dentist compared with 19% SPC paint-on film; GRADE not reported.

1 finding from 1 review

5% CP gel in tray (with STPP) 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% CP gel in tray (with STPP) changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

1 finding from 1 review

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

1 finding from 1 review

10% 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 10% CP gel in tray changes tooth whitening - assessed by the dentist compared with 7.5% HP gel in tray (very low certainty).

1 finding from 1 review

10% CP gel in tray vs 6% 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 10% CP gel in tray changes tooth whitening - assessed by the dentist compared with 6% HP gel in tray (very low certainty).

2 findings from 1 review

17% CP gel in tray 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)

It is very uncertain whether 17% CP gel in tray changes tooth whitening - reported by the patient compared with 10% CP gel in tray (very low certainty).

1 finding from 1 review

5.9% HP strip vs 5.9% 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)

5.9% HP strip led to higher tooth whitening - assessed by the dentist compared with 5.9% HP paint-on gel; GRADE not reported.

2 findings from 1 review

5% 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 5% 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

18% CP paint-on gel vs 16.4% 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 18% CP paint-on gel changes tooth whitening - assessed by the dentist compared with 16.4% CP paint-on gel (very low certainty).

1 finding from 1 review

16% CP gel in tray + ACP 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)

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

1 finding from 1 review

6% HP strip vs 5% CP gel in tray + 5% KN

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 5% CP gel in tray + 5% KN (very low certainty).

1 finding from 1 review