Non-Cochrane · intervention · PM42808713

The Effectiveness of Topical Fluorides in Preventing Dental Caries in Children and Adolescents: A Systematic Review and Meta-Analysis.

Shao Meijia, Shen Qinfen, Zhao Wenjun · Oral health & preventive dentistry · 2026 · PubMed · doi:10.3290/j.ohpd.c_2826

Findings

21 findings

Population
Children and adolescents aged 3-15 years at high caries risk (baseline DMFS >= 3)Topical fluoride (mouth rinse, toothpaste, gel, foam or varnish)Placebo, no intervention, or non-fluoride preventive measureCaries incidence (children developing dental caries)
10 months to 3 years · Not specified · Short-term intervention (< 18 months)
OR 0.56 [0.42, 0.74]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresDental caries incidence
High frequency (≥2 times/week)
OR 0.45 [0.33, 0.61]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresSIC changeMD -0.85 [-1.66, -0.05]
GRADE not reported
5 studies · 330 participants
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresDental caries incidenceOR 0.27 [0.21, 0.36]
GRADE not reported
10 studies · 1122 participants
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresDental caries incidence
Long duration (≥18 months)
OR 0.39 [0.28, 0.54]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresPrevented DMFS incrementMD 0.35 [0.07, 0.63]
GRADE not reported
6 studies · 460 participants
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresDental caries incidence
Adolescents aged 10–19 years
OR 0.6 [0.46, 0.79]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresAdverse eventsno estimate extracted
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresDental caries incidence
Low frequency (<2 times/week)
OR 0.62 [0.48, 0.8]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo, no intervention or other preventive measuresDental caries incidence
Children aged 3–10 years
OR 0.48 [0.34, 0.68]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskSodium fluoridePlacebo, no intervention or other preventive measuresDental caries incidence
Sodium fluoride
OR 0.47 [0.35, 0.62]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskMonofluorophosphatePlacebo, no intervention or other preventive measuresDental caries incidence
Monofluorophosphate
OR 0.55 [0.41, 0.74]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskTopical fluoridePlacebo or no interventionDental caries incidence
Placebo or no intervention
OR 0.49 [0.38, 0.64]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries riskTopical fluorideActive controlDental caries incidence
Active control
OR 0.58 [0.42, 0.8]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries risk0.2% topical fluoridePlacebo, no intervention or other preventive measuresDental caries incidence
0.2%
OR 0.24 [0.18, 0.32]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries risk0.2% topical fluoridePlacebo, no intervention or other preventive measuresPrevented DMFS increment
0.2%
MD 0.4 [0.1, 0.7]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries risk0.2% topical fluoridePlacebo, no intervention or other preventive measuresSIC change
0.2%
MD -1 [-1.8, -0.2]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries risk0.05% topical fluoridePlacebo, no intervention or other preventive measuresPrevented DMFS increment
0.05%
MD 0.3 [0.05, 0.55]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries risk0.05% topical fluoridePlacebo, no intervention or other preventive measuresDental caries incidence
0.05%
OR 0.29 [0.21, 0.38]
GRADE not reported
Studies not reported
Children and adolescents aged 3–15 years at high caries risk0.05% topical fluoridePlacebo, no intervention or other preventive measuresSIC change
0.05%
MD -0.8 [-1.6, 0]
GRADE not reported
Studies not reported
Children aged 3–6 years5% sodium fluoride varnish at baseline, 3 and 6 monthsDelayed varnish at 3 and 6 monthsdmft
6 months
no estimate extracted
GRADE not reported
1 study

Included primary studies 10

Open in Studies
StudyYearAlso included byOutcomes it informs hereTrial data
Koopman 2015
The Effect of Fixed Orthodontic Appliances and Fluoride Mouthwash on the Oral Microbiome of Adolescents - A Randomized Controlled Clinical…
PMID:26332408
20151 other reviewnot statednot extracted yet
Aminabadi 2007
The Effect of 0.2% Sodium Fluoride Mouthwash in Prevention of Dental Caries According to the DMFT Index.
PMID:23277837
2007this review onlynot statednot extracted yet
Bidwell 2018
Fluoride mouthrinses for preventing dental caries in children and adolescents.
PMID:28944499
2018this review onlynot statednot extracted yet
Gedam 2022
Efficacy of Probiotic, Chlorhexidine, and Sodium Fluoride Mouthrinses on Mutans Streptococci in 8- to 12-Year-Old Children: A Crossover…
PMID:35021171
2022this review onlynot statednot extracted yet
Jagan 2015
matched by author and year (probable)
NRthis review onlynot statednot extracted yet
James 2010
The caries-preventive effect of chlorhexidine varnish in children and adolescents: a systematic review.
PMID:20606432
2010this review onlynot statednot extracted yet
Marinho 2016
Fluoride mouthrinses for preventing dental caries in children and adolescents.
PMID:27472005
2016this review onlynot statednot extracted yet
Miller 2012
Topical fluoride for preventing dental caries in children and adolescents.
PMID:22632397
2012this review onlynot statednot extracted yet
Mohammadi 2015
Fluoride varnish effect on preventing dental caries in a sample of 3-6 years old children.
PMID:25709364
2015this review onlynot statednot extracted yet
Shahid 2017
Regular supervised fluoride mouthrinse use by children and adolescents associated with caries reduction.
PMID:28338040
2017this review onlynot statednot extracted yet

Overlap with other reviews

Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.

Review question

ElementPlanned (methods)Found (results)
PopulationChildren aged 3-15 years at high caries risk (baseline DMFS >= 3)Children aged 3-15 years; total sample 10,302 (n=10)
InterventionTopical fluoride (mouth rinse, toothpaste, gel, foam or varnish); single fluoride typeTopical fluoride: NaF mouthrinse 0.02%-0.2%, fluoride toothpaste, 5% NaF varnish, NH4HF2/NaF rinse (n=10)
ComparisonPlacebo; no intervention; non-fluoride preventive measure (oral hygiene instruction, dietary counselling, non-fluoride sealants)Placebo/no treatment (n=8); active control (n=1); delayed varnish (n=1)
OutcomesNew caries incidence/caries rates; DMFS change; SIC (surface area of initial caries) change; safety outcomes (fluorosis, GI symptoms, taste disturbance, staining, mucosal irritation, allergy, withdrawals due to adverse events)Caries incidence (n=10); DMFS change (n=6); SIC change (n=5); 5% NaF varnish dmft summarized narratively (n=1); safety narrative only
Study designsRCTs or controlled clinical intervention studies; sample size >= 150; dropout <= 20%RCTs (n=10)
TimingNot specifiedTreatment duration 10 months to 3 years

AMSTAR 2 items

Two independent extractors rated each item. Their ratings are shown side by side because they have not been reconciled yet. The overall rating follows Shea et al. 2017: one critical flaw gives Low, more than one gives Critically Low.

ItemExtractor AExtractor BAgree
1Research question includes PICO componentsYesYesyes
2Protocol established before the reviewcriticalNoNoyes
3Choice of study designs explainedNoNoyes
4Comprehensive literature searchcriticalNoPartial Yesno
5Study selection in duplicateYesYesyes
6Data extraction in duplicateYesYesyes
7List of excluded studies with reasonscriticalNoNoyes
8Included studies described in detailPartial YesPartial Yesyes
9Risk of bias assessed satisfactorilycriticalRCT: Yes · NRSI: N/ANRSI: N/A · RCT: Partial Yesno
10Funding of included studies reportedNoNoyes
11Appropriate meta-analysis methodscriticalRCT: No · NRSI: N/ANRSI: N/A · RCT: Yesno
12Impact of risk of bias on the pooled resultsNoNoyes
13Risk of bias accounted for in interpretationcriticalYesYesyes
14Heterogeneity explainedYesYesyes
15Publication bias investigatedcriticalYesYesyes
16Conflicts of interest reportedNoNoyes
OverallCritically LowCritically Lowyes