Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

681 questions · 709 findings · 179 reviews

No studies found 180 · 25.4%GRADE not reported 51 · 7.2%Very low 194 · 27.4%Low 144 · 20.3%Moderate 110 · 15.5%High 30 · 4.2%

Pharmacy‐based management (pharmacist with or without wider team) vs treatment

Acceptability of the intervention (as measured by participants not attending · adults

Pharmacy‐based management (pharmacist with or without wider team) showed no clear difference in acceptability of the intervention (as measured by participants not… compared with treatment (low certainty).

1 finding from 1 review

Pycnogenol chewing gum vs Placebo chewing gum

VSC: methyl mercaptan · Adolescents and adults aged over 16 years with clinical or self-assessed halitosis of oral origin; excluding induced or physiological…

Pycnogenol chewing gum showed no clear difference in VSC: methyl mercaptan compared with placebo chewing gum; GRADE not reported.

1 finding from 1 review

5.3% HP strip vs 5% HP gel in tray

Patient comfort / acceptability · 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 patient comfort / acceptability compared with 5% HP gel in tray (very low certainty).

1 finding from 1 review

Altered-cast impression technique (ACIP), polyether vs One-piece cast technique (OPC), polyether

Denture base adaptation (buccal shelf and ridge crest) · Partially edentulous people requiring a tooth- and tissue-supported (distal-extension) removable partial denture

Altered-cast impression technique (ACIP), polyether led to lower denture base adaptation (buccal shelf and ridge crest) compared with one-piece cast technique (OPC), polyether; GRADE not reported.

1 finding from 1 review