Wenzel 1982.
| Methods |
FLUOROSIS STUDY Country of study: Denmark Geographic location: Naestved (F); Greve (F); Ry (non‐F) Year of study: not stated Year of change in fluoridation status: not stated Study design: cross‐sectional |
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| Participants | Inclusion criteria: lifetime residents of study areas; girls aged 12‐15 years Exclusion criteria: children with orthodontic appliances; history of additional fluoride use Other sources of fluoride: only children without fluoride use were included; no attempt was made to distinguish between users and non‐users of fluoridated dentifrice Social class: not stated Ethnicity: not stated Residential history: lifetime residents Other confounding factors: not stated |
|
| Interventions | Group 1: < 0.2 ppm Group 2: 1.0 ppm Group 3: 2.4 ppm |
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| Outcomes | Fluorosis (TF Index); skeletal maturity Age at assessment: 12‐14 years |
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| Funding | Sponsored by Colgate Palmolive, Denmark | |
| Notes | Data extracted Wenzel 1982 differs from that presented in CRD review | |
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Sampling | Unclear risk | Insufficient detail reported to determine how selection took place |
| Confounding | High risk | Did not account for SES |
| Blinding of outcome assessment (detection bias) All outcomes | High risk | Insufficient information |
| Incomplete outcome data (attrition bias) All outcomes | Low risk | Data for all participants presented |
| Selective reporting (reporting bias) | Low risk | Outcome of interest presented |
| Other bias | High risk | No information on examiner calibration |