Findings

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Evidence found and GRADE certainty

7 questions · 7 findings · 1 reviews · Dental caries

No studies found 1 · 14.3%GRADE not reported 1 · 14.3%Very low 0 · 0%Low 5 · 71.4%Moderate 0 · 0%High 0 · 0%

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Dental caries in adults · adults

The review found no eligible studies for this question.

1 finding from 1 review
  • Water fluoridation for the prevention of dental caries 2015 · Cochrane All outcomes
    Adults
    No studies that aimed to determine the effectiveness of water fluoridation for preventing caries in adults met the review's inclusion criteria. There are no data to determine the effect of water fluoridation on caries…
    0 studies
    No studies found

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Caries development in permanent teeth · People of all ages in a community setting; the included caries studies were all in children aged 3 to 16 years

Initiation of water fluoridation (artificial or natural) may leads to lower caries in permanent teeth (change in DMFT) compared with low/non-fluoridated water (0.4 ppm fluoride or less) (low certainty).

1 finding from 1 review

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Disparities in caries across socioeconomic status (SES) · People of all ages in a community setting; the included caries studies were all in children aged 3 to 16 years
1 finding from 1 review
  • There is insufficient information to determine whether initiation of a water fluoridation programme results in a change in disparities in caries levels across SES. Data from 3 observational studies (participants not…
    3 studies · 35399 participants
    Low

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Change in proportion of caries-free children (permanent teeth) · People of all ages in a community setting; the included caries studies were all in children aged 3 to 16 years

Initiation of water fluoridation (artificial or natural) may leads to higher change in proportion of caries-free children (permanent teeth) compared with low/non-fluoridated water (0.4 ppm fluoride or less) (low certainty).

1 finding from 1 review

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Caries in deciduous teeth (change in dmft) · People of all ages in a community setting; the included caries studies were all in children aged 3 to 16 years

Initiation of water fluoridation (artificial or natural) may leads to lower caries in deciduous teeth (change in dmft) compared with low/non-fluoridated water (0.4 ppm fluoride or less) (low certainty).

1 finding from 1 review

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Caries increment in permanent teeth · Children aged about 12 to 16 years (Hardwick 1982), community setting

Initiation of water fluoridation (artificial or natural) led to lower caries in permanent teeth (change in DMFS) compared with low/non-fluoridated water (0.4 ppm fluoride or less); GRADE not reported.

1 finding from 1 review

Initiation of water fluoridation (artificial or natural) vs Low/non-fluoridated water (0.4 ppm fluoride or less)

Change in proportion of caries-free children (deciduous teeth) · People of all ages in a community setting; the included caries studies were all in children aged 3 to 16 years

Initiation of water fluoridation (artificial or natural) may leads to higher change in proportion of caries-free children (deciduous teeth) compared with low/non-fluoridated water (0.4 ppm fluoride or less) (low certainty).

1 finding from 1 review