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Evidence found and GRADE certainty

4 questions · 4 findings · 1 reviews · All outcomes

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 4 · 100%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

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 shade)

It is very uncertain whether 4% SHMP chewing gum changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

1 finding from 1 review

1% STPP 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 1% STPP chewing gum changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

1 finding from 1 review

5.6% 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 5.6% SHMP chewing gum changes tooth whitening - assessed by the dentist compared with placebo (very low certainty).

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