Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

550 questions · 669 findings · 42 reviews

No studies found 162 · 24.2%GRADE not reported 272 · 40.7%Very low 110 · 16.4%Low 93 · 13.9%Moderate 29 · 4.3%High 3 · 0.4%

Fluoride mouthrinse (any fluoride agent, concentration, volume, frequency or technique; swished and expectorated, not swallowed) vs placebo or no treatment

Dental caries: dmfs increment (primary teeth) · Children and adolescents aged 16 years or less

The review found no eligible studies for this question.

1 finding from 1 review

Fluoride mouthrinse (any fluoride agent, concentration, volume, frequency or technique; swished and expectorated, not swallowed) vs placebo or no treatment

Proportion developing new caries · Children and adolescents aged 16 years or less

Fluoride mouthrinse (any fluoride agent, concentration, volume,… showed no clear difference in proportion of children developing one or more new caries compared with placebo or no treatment; GRADE not reported.

1 finding from 1 review

Adhesively bonded amalgam restorations in conventional preparations utilising deliberate retention (all bonding agents) vs Amalgam restoration

Secondary caries · Adults and adolescents with permanent posterior molar and premolar teeth suitable for Class I and II, but excluding Class V, amalgam…

The review found no eligible studies for this question.

1 finding from 1 review

Fluoride mouthrinse (any fluoride agent, concentration, volume, frequency or technique; swished and expectorated, not swallowed) vs placebo or no treatment

Proportion of children not remaining caries-free · Children and adolescents aged 16 years or less

The review found no eligible studies for this question.

1 finding from 1 review

Fluoride gel (topically applied; operator- or self-applied; any fluoride agent/concentration; frequency at least once a year) vs placebo or no treatment

Caries increment on permanent whole teeth (D(M)FT), prevented fraction · Children and adolescents aged 16 years or younger (permanent dentition)
3 findings from 1 review

Fluoride gel (topically applied; operator- or self-applied; any fluoride agent/concentration; frequency at least once a year) vs placebo or no treatment

Caries increment on permanent tooth surfaces (D(M)FS), prevented fraction · Children and adolescents aged 16 years or younger (permanent dentition)
3 findings from 1 review

Higher drinking-water fluoride exposure vs Lower water fluoride concentration (concurrent control)

Dental fluorosis of aesthetic concern (Dean's Index, TFI, TSIF) · Populations of all ages (mostly children) exposed to drinking water with differing fluoride concentrations

Higher water fluoride concentration (fluoridated water; natural or… may leads to higher dental fluorosis of aesthetic concern (Dean's Index, TFI, TSIF) compared with lower water fluoride concentration (concurrent control) (low certainty).

1 finding from 1 review

Xylitol sucking tablets (1 g/day) vs no treatment

Number of infants with a caries increment · Infants/young children (primary teeth; baseline about 1 to 3 years)

Xylitol sucking tablets (1 g/day) showed no clear difference in number of infants with a caries increment compared with no treatment; GRADE not reported.

1 finding from 1 review

Xylitol candy (7.5 g/day) vs Control (sorbitol) candy

Caries increment (dmfs, primary and permanent teeth combined) · Children (mixed dentition; baseline about 8 years)
1 finding from 1 review

Fluoride gel (topically applied; operator- or self-applied; any fluoride agent/concentration; frequency at least once a year) vs placebo or no treatment

Proportion of children not remaining caries-free · Children with primary (deciduous) teeth (younger children)

Fluoride gel (topically applied; operator- or self-applied; any… showed no clear difference in proportion of children not remaining caries-free compared with placebo or no treatment; GRADE not reported.

1 finding from 1 review

Xylitol tablets (200 to 600 mg/day) via slow-release pacifier/dummy vs Control (sorbitol) tablets

Number of infants with a caries increment (dmfs) · Infants (primary teeth)

It is very uncertain whether xylitol tablets (200 to 600 mg/day) via slow-release pacifier/dummy changes number of infants with a caries increment (dmfs) compared with control (sorbitol) tablets (very low certainty).

1 finding from 1 review

Fluoride gel (topically applied; operator- or self-applied; any fluoride agent/concentration; frequency at least once a year) vs placebo or no treatment

Proportion developing new caries · Children and adolescents aged 16 years or younger (permanent dentition)

Fluoride gel (topically applied; operator- or self-applied; any… led to lower proportion of children developing new caries compared with placebo or no treatment; GRADE not reported.

1 finding from 1 review