Non-Cochrane · intervention · PM30765785

Silver diamine fluoride versus sodium fluoride for arresting dentine caries in children: a systematic review and meta-analysis.

Trieu Alice, Mohamed Ahmed, Lynch Edward · Scientific reports · 2019 · PubMed · doi:10.1038/s41598-019-38569-9

Oral HealthDental cariesAMSTAR 2: critically low (both extractors)
Full textEvery question was extracted from the full text, figures and supplements by two independent LLM extractors, disagreements adjudicated. Rows cite where in the review the value comes from.
Questions
2
current version
GRADE rated
0
No studies
0
Included studies
6
linked below
No studies 0 · 0%Ungraded 2 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Review question

ElementPlanned (methods)Found (results)
PopulationHumans, children (adults over 12 years excluded); in vivo dentine/dental caries; cohort, case-control, controlled or randomized study designs; English languagePreschool children with dentine caries in primary teeth, mean age 3.4-4.0 years (746 children across 6 included articles representing 2 unique RCT populations of 375 and 304)
InterventionSilver diamine fluoride (SDF)SDF 30% or 38%, applied annually or in three weekly applications (n=2 trials)
ComparisonSodium fluoride (NaF) / fluoride varnish5% NaF varnish, applied at day 0 then every 3 months or in three weekly applications (n=2 trials)
OutcomesDentine caries arrest (caries activity; decayed, missing, filled [DMF])Arrested caries surfaces (dentine caries arrest); pooled odds ratios at 18 and 30 months (n=6 articles; 4 in meta-analysis)
Study designsNot specifiedCommunity/kindergarten-based; Hong Kong and Guangzhou, Southern China (n=2 trials)
TimingNot specifiedFollow-up 6, 12, 18, 24, 30 months; meta-analyses at 18 and 30 months

Search date: March 31, 2018. Databases: PubMed; Web of Science; Ovid; Cochrane Library; hand-searched journals (Caries Research, Journal of Dentistry, Journal of Dental Research, Journal of Oral Health and Preventive Dentistry, Pediatric Dentistry) and reference lists

Questions and results

Silver diamine fluoride (SDF; 30% or 38%) vs 5% sodium fluoride (NaF) varnish

Population: Preschool children with active dentine caries in primary teeth (mean age 3.4-4.0 years)
2 questions
OutcomeEffectEvidenceStatus / GRADE
Arrested dentine caries (arrested caries surfaces)
18 months
Silver diamine fluoride was about 2.5 times more likely than sodium fluoride to arrest dentine caries surfaces at 18 months (pooled OR 2.51, 95% CI 1.25 to 5.10; 2 RCTs), although between-study heterogeneity was high (I2=90.3%); certainty of evidence was not formally graded.
Source: Statistical meta-analysis; Figure 3; Heterogeneity analysis · same question in other reviews
OR 2.51 [1.25, 5.10]2 studiesUngraded
Arrested dentine caries (arrested caries surfaces)
30 months
Silver diamine fluoride was about twice as likely as sodium fluoride to arrest dentine caries surfaces at 30 months (pooled OR 2.03, 95% CI 1.51 to 2.77; 2 RCTs; I2=44.3%); certainty of evidence was not formally graded.
Source: Statistical meta-analysis; Figure 4; Heterogeneity analysis · same question in other reviews
OR 2.03 [1.51, 2.77]2 studiesUngraded

AMSTAR 2 appraisal

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 searchcriticalPartial YesPartial Yesyes
5Study selection in duplicateYesYesyes
6Data extraction in duplicateYesYesyes
7List of excluded studies with reasonscriticalNoNoyes
8Included studies described in detailYesYesyes
9Risk of bias assessed satisfactorilycriticalRCT: Partial Yes · NRSI: N/ANRSI: N/A · RCT: Nono
10Funding of included studies reportedNoNoyes
11Appropriate meta-analysis methodscriticalRCT: Yes · NRSI: N/ANRSI: N/A · RCT: Yesno
12Impact of risk of bias on the pooled resultsNoNoyes
13Risk of bias accounted for in interpretationcriticalYesYesyes
14Heterogeneity explainedYesNono
15Publication bias investigatedcriticalYesNono
16Conflicts of interest reportedYesYesyes
OverallCritically LowCritically Lowyes

Included primary studies 6

Open as a trial list
StudyAlso included byOutcomes it informs hereTrial PICOResults
Chu 2002
Effectiveness of Silver Diamine Fluoride and Sodium Fluoride Varnish in Arresting Dentin Caries in Chinese Pre-school Children
DOI:10.1177/0810767
1 other reviewArrested dentine caries (arrested caries surfaces)not extracted yetnot extracted yet
Duangthip 2018
Caries arrest by topical fluorides in preschool children: 30-month results
DOI:10.1016/j.jdent.2017.12.013
1 other reviewArrested dentine caries (arrested caries surfaces)not extracted yetnot extracted yet
Duangthip 2016
A randomized clinical trial on arresting dentine caries in preschool children by topical fluorides—18 month results
DOI:10.1016/j.jdent.2015.05.006
this review onlyArrested dentine caries (arrested caries surfaces)not extracted yetnot extracted yet
Lo 2001
A Community-based Caries Control Program for Pre-school Children Using Topical Fluorides: 18-month Results
DOI:10.1177/00220345010800120901
this review onlyArrested dentine caries (arrested caries surfaces)not extracted yetnot extracted yet
Wong 2005
Bayesian Analysis of Clustered Interval-censored Data
DOI:10.1177/154405910508400907
this review onlynot statednot extracted yetnot extracted yet
Wong 2011
Analysis of multilevel grouped survival data with time‐varying regression coefficients
DOI:10.1002/sim.4094
this review onlynot statednot extracted yetnot 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).