Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,809 questions · 1,956 findings · 194 reviews

No studies found 422 · 21.6%GRADE not reported 427 · 21.8%Very low 353 · 18%Low 397 · 20.3%Moderate 293 · 15%High 64 · 3.3%

Any form of one-to-one oral hygiene advice (OHA) vs No OHA

Dental caries · Children or adults (fit and healthy, or with a well-defined medical condition)

It is very uncertain whether any form of one-to-one oral hygiene advice (OHA) changes dental caries compared with no OHA (very low certainty).

1 finding from 1 review

Any form of one-to-one oral hygiene advice (OHA) vs No OHA

Gingivitis · Children or adults (fit and healthy, or with a well-defined medical condition)

It is very uncertain whether any form of one-to-one oral hygiene advice (OHA) changes periodontal health: gingivitis compared with no OHA (very low certainty).

1 finding from 1 review

Any form of one-to-one oral hygiene advice (OHA) vs No OHA

Patient-reported changes in knowledge, attitudes and quality of life · Children or adults (fit and healthy, or with a well-defined medical condition)
1 finding from 1 review

Oral propranolol vs placebo

Clearance, as assessed by a clinician at any · infantile haemangiomas (strawberry birthmarks) of the skin

Oral propranolol probably leads to higher clearance, as assessed by a clinician at any compared with placebo (moderate certainty).

1 finding from 1 review