Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,587 questions · 5,761 findings · 495 reviews

No studies found 1,011 · 17.5%GRADE not reported 1,797 · 31.2%Very low 1,100 · 19.1%Low 1,052 · 18.3%Moderate 649 · 11.3%High 152 · 2.6%

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Primary education vs University education

Prevalence of untreated decay (% DT > 0) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States

In Australia, primary versus university education differed by 18.40 percentage points in prevalence of untreated decay.

5 findings from 1 review
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Medium income vs High income

Prevalence of untreated decay (% DT > 0) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States

In Australia, medium versus high income differed by 6.8 percentage points in prevalence of untreated decay.

4 findings from 1 review
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Low income vs High income

Mean number of decayed teeth (mean DT) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States

Across four countries, low versus high income differed by 0.44 decayed teeth in mean number of decayed teeth (random-effects meta-analysis; I2=76.4%).

5 findings from 1 review
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Secondary education vs University education

Mean number of decayed teeth (mean DT) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States

In Canada, secondary versus university education differed by 0.7 decayed teeth in mean number of decayed teeth.

4 findings from 1 review
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Self-management (self-administered/self-monitored OHA) vs Professional OHA

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

It is very uncertain whether self-management (self-administered/self-monitored OHA) changes periodontal health: gingivitis compared with professional OHA (very low certainty).

1 finding from 1 review

Post-secondary education vs University education

Prevalence of untreated decay (% DT > 0) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States

In Canada, post-secondary versus university education differed by 7.8 percentage points in prevalence of untreated decay.

4 findings from 1 review
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Personalised one-to-one OHA vs Routine one-to-one OHA

Patient-reported behaviour changes and health indices · Children or adults (fit and healthy, or with a well-defined medical condition)
1 finding from 1 review

Medium income vs High income

Mean number of decayed teeth (mean DT) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States

In United States, medium versus high income differed by 0.1 decayed teeth in mean number of decayed teeth.

4 findings from 1 review
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Primary education vs University education

Mean number of decayed teeth (mean DT) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States

In Canada, primary versus university education differed by 0.69 decayed teeth in mean number of decayed teeth.

5 findings from 1 review
Show 2 more findings

Secondary education vs University education

Prevalence of untreated decay (% DT > 0) · Adults aged 25 years and older in Australia, Canada, New Zealand, and the United States

In United States, secondary versus university education differed by 10.4 percentage points in prevalence of untreated decay.

4 findings from 1 review
Show 1 more finding

Self-management (self-administered/self-monitored OHA) vs Professional OHA

Patient-reported behaviour changes · Children or adults (fit and healthy, or with a well-defined medical condition)
1 finding from 1 review

Personalised one-to-one OHA vs Routine one-to-one OHA

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

It is very uncertain whether personalised one-to-one OHA changes periodontal health: gingivitis compared with routine one-to-one OHA (very low certainty).

1 finding from 1 review

Personalised one-to-one OHA vs Routine one-to-one OHA

Dental caries · Children or adults (fit and healthy, or with a well-defined medical condition)
1 finding from 1 review

Enhanced one-to-one OHA vs Routine one-to-one OHA

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

It is very uncertain whether enhanced one-to-one OHA changes periodontal health: gingivitis compared with one-to-one OHA (standard) (very low certainty).

1 finding from 1 review