Non-Cochrane · intervention · PM39780151

Microinvasive interventions in the management of proximal caries lesions in primary and permanent teeth- systematic review and meta-analysis.

Tasleem Robina, Alqahtani Saleh Ali, Abogazalah Naif, et al. · BMC oral health · 2025 · PubMed · doi:10.1186/s12903-024-05400-5

Oral HealthDental cariesAMSTAR 2: Low / Critically Low (extractors disagree)
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
12
current version
GRADE rated
1
No studies
1
Included studies
17
linked below
No studies 1 · 8.3%Ungraded 10 · 83.3%Very low 0 · 0%Low 0 · 0%Moderate 1 · 8.3%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)
PopulationDentate children and adults with proximal carious lesions extending into enamel or dentine (not pulp); primary caries lesions only, no existing filling at the lesion site13 RCTs; 623 subjects; ages 3-45; 5 trials primary teeth (3-9y), 7 trials permanent teeth (11-45y), 1 trial both dentitions
InterventionProximal microinvasive treatments: resin or glass ionomer cement (GIC) sealants, polyurethane tapes, or resin infiltration, placed by dentists or dental care professionalsResin infiltration (10 trials); glass ionomer cement varnish (1 trial); resin-based sealant (2 trials)
ComparisonNon-invasive measures (dental floss, fluoride varnish, oral hygiene advice), invasive means (conventional restorations), placebo, or no interventionNon-invasive comparators: sham/mock infiltration, oral hygiene instruction, dietary advice, fluoridated toothpaste, flossing, fluoride varnish, standard of care
OutcomesPrimary: radiographic progression of proximal carious lesions. Secondary: adverse events (gingival bleeding, gingival bleeding index, visible plaque index)Radiographic caries progression assessed in all 13 trials; secondary outcomes (gingival bleeding/GBI/visible plaque index) in 3 trials
Study designsRandomized controlled trials (parallel-group and split-mouth); unit of randomization = group, individual, tooth, lesion, or tooth/lesion pairsAll 13 included trials were split-mouth RCTs
TimingFollow-up at least 6 months; publications January 2015 to May 2024Complete follow-up durations 1 to 7 years

Search date: May 2024. Databases: PubMed; Google Scholar; Cochrane Oral Health Group Trials Register

Questions and results

Microinvasive techniques (resin infiltration, resin/GIC sealant, or glass ionomer varnish) vs Non-invasive measures (fluoride varnish/toothpaste, flossing, oral hygiene instruction, sham/standard of care)

Population: Children and adults with non-cavitated proximal (interproximal) caries lesions in primary and/or permanent teeth (ages 3-45)
2 questions
OutcomeEffectEvidenceStatus / GRADE
Adverse events and periodontal/secondary outcomes (gingival bleeding, gingival bleeding index, visible plaque index)
Baseline and follow-up
Only three trials reported secondary/adverse outcomes; no adverse events were attributed to microinvasive treatment and periodontal findings were mixed and not pooled (ungraded).
Source: Results (Secondary outcomes); Discussion; Table 1 (secondary outcome column) · same question in other reviews
Reported narratively by 3 trials (Arthur 2018, Sarti 2020, Jorge 2019). No adverse events were attributed to microinvasive treatment. Gingival bleeding index: no significant difference in Arthur 2018 and Jorge 2019 but…3 studiesUngraded
Radiographic progression of proximal caries lesions
Final follow-up (1 to 7 years across trials) · Overall (all microinvasive vs non-invasive pooled)
Microinvasive techniques probably reduce radiographic progression of non-cavitated proximal caries lesions compared with non-invasive measures (moderate certainty).
Source: Table 2 (GRADE evidence profile); Fig. 4 (forest plot, overall diamond); Abstract; Results (Radiographic caries progression); Quality of… · same question in other reviews
OR 0.27 [0.19, 0.38]
-21.2 [-24.4, -17.2] percentage points (fewer lesions progressing with microinvasive)
13 studies · 623 participantsModerate
Downgraded: risk of bias

Resin infiltration vs Non-invasive measures (fluoride varnish/toothpaste, flossing, oral hygiene instruction, sham/standard of care)

Population: Children and adults with non-cavitated proximal (interproximal) caries lesions in primary and/or permanent teeth (ages 3-45)
1 question
OutcomeEffectEvidenceStatus / GRADE
Radiographic progression of proximal caries lesions
Final follow-up (1 to 7 years across trials) · Resin infiltration vs non-invasive (Fig. 5, subgroup 2.1.1)
Pooling 10 trials, resin infiltration reduced radiographic proximal caries progression versus non-invasive measures (OR 0.23); this subgroup was not separately GRADE-rated.
Source: Fig. 5 (forest plot, subgroup 2.1.1 infiltration vs control) · same question in other reviews
OR 0.23 [0.15, 0.35]10 studies · 459 participantsUngraded

Resin-based sealant (proximal sealing / fluoride-releasing resin sealant) vs Non-invasive measures (fluoride varnish; no intervention)

Population: Children and adults with non-cavitated proximal (interproximal) caries lesions in primary and/or permanent teeth (ages 3-45)
1 question
OutcomeEffectEvidenceStatus / GRADE
Radiographic progression of proximal caries lesions
Final follow-up (1 to 3.5 years) · Sealant vs non-invasive (Fig. 5, subgroup 2.1.2)
Pooling 2 trials, resin-based sealants reduced radiographic proximal caries progression versus non-invasive measures (OR 0.24; ungraded subgroup).
Source: Fig. 5 (forest plot, subgroup 2.1.2 sealant vs control) · same question in other reviews
OR 0.24 [0.10, 0.55]2 studies · 111 participantsUngraded

Glass ionomer (modified glass ionomer varnish) vs Non-invasive measures (standard of care)

Population: Children with non-cavitated proximal caries lesions in primary teeth (ages 5-8)
1 question
OutcomeEffectEvidenceStatus / GRADE
Radiographic progression of proximal caries lesions
1 year · Glass ionomer vs non-invasive (Fig. 5, subgroup 2.1.3)
In one trial, glass ionomer varnish showed no statistically significant difference versus non-invasive care in radiographic proximal caries progression (OR 0.58, CI includes 1; ungraded subgroup).
Source: Fig. 5 (forest plot, subgroup 2.1.3 ionomer vs control) · same question in other reviews
OR 0.58 [0.28, 1.20]1 study · 53 participantsUngraded

Microinvasive techniques (mostly resin infiltration; incl. resin sealant) vs Non-invasive measures (fluoride varnish/toothpaste, flossing, oral hygiene instruction, sham/standard of care)

Population: Children and adults with non-cavitated proximal caries lesions in permanent teeth (ages 11-45)
1 question
OutcomeEffectEvidenceStatus / GRADE
Radiographic progression of proximal caries lesions
Final follow-up (1 to 7 years across trials) · Permanent teeth (Fig. 6, subgroup 2.1.1)
In permanent teeth (7 trials), microinvasive techniques reduced radiographic proximal caries progression versus non-invasive measures (OR 0.18; ungraded subgroup).
Source: Fig. 6 (forest plot, subgroup 2.1.1 permanent teeth) · same question in other reviews
OR 0.18 [0.10, 0.32]7 studies · 296 participantsUngraded

Microinvasive techniques (resin infiltration or glass ionomer varnish) vs Non-invasive measures (fluoride varnish/toothpaste, flossing, oral hygiene instruction, sham/standard of care)

Population: Children with non-cavitated proximal caries lesions in primary teeth (ages 3-9)
1 question
OutcomeEffectEvidenceStatus / GRADE
Radiographic progression of proximal caries lesions
Final follow-up (1 to 2 years across trials) · Primary teeth (Fig. 6, subgroup 2.1.2)
In primary teeth (5 trials), microinvasive techniques reduced radiographic proximal caries progression versus non-invasive measures (OR 0.38; ungraded subgroup).
Source: Fig. 6 (forest plot, subgroup 2.1.2 primary teeth) · same question in other reviews
OR 0.38 [0.25, 0.57]5 studies · 266 participantsUngraded

Microinvasive technique (proximal sealing) vs No intervention

Population: Children with lesions in both primary and permanent teeth (ages 8-10)
1 question
OutcomeEffectEvidenceStatus / GRADE
Radiographic progression of proximal caries lesions
3.5 years · Both permanent and primary (Fig. 6, subgroup 2.1.3)
In one trial including both primary and permanent teeth, proximal sealing reduced radiographic caries progression versus no intervention (OR 0.16; ungraded subgroup).
Source: Fig. 6 (forest plot, subgroup 2.1.3 both permanent and primary) · same question in other reviews
OR 0.16 [0.06, 0.44]1 study · 61 participantsUngraded

Microinvasive techniques (resin infiltration, sealant, glass ionomer) vs Invasive treatment (conventional restorations)

Population: Children and adults with non-cavitated proximal (interproximal) caries lesions in primary and/or permanent teeth (ages 3-45)
1 question
OutcomeEffectEvidenceStatus / GRADE
Radiographic progression of proximal caries lesions
No eligible studies compared microinvasive techniques with invasive (restorative) treatment; this planned comparison had zero included studies.
Source: Comparator eligibility (Methods); Discussion (none of the included studies compared microinvasive with invasive interventions) · same question in other reviews
no estimate extracted0 studiesNo studies

Comparison

3 questions
OutcomeEffectEvidenceStatus / GRADE
Treatment failure (time-to-failure, 7 years)
Resin infiltration 1.3% vs standard of care 7.8% (Paris 2020, Kaplan-Meier)
no estimate extracted1 studyUngraded
Radiographic progression of proximal caries lesions
Caries depth: lesions extending beyond DEJ (favored microinvasive; narrative, no numeric estimate)
no estimate extractedNRUngraded
Radiographic progression of proximal caries lesions
Caries depth: lesions up to DEJ (favored microinvasive; narrative, no numeric estimate)
no estimate extractedNRUngraded

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 reviewcriticalPartial YesNono
3Choice of study designs explainedNoNoyes
4Comprehensive literature searchcriticalPartial YesPartial Yesyes
5Study selection in duplicateNoNoyes
6Data extraction in duplicateNoNoyes
7List of excluded studies with reasonscriticalNoNoyes
8Included studies described in detailPartial YesYesno
9Risk of bias assessed satisfactorilycriticalNRSI: N/A · RCT: YesRCT: Yesno
10Funding of included studies reportedNoNoyes
11Appropriate meta-analysis methodscriticalNRSI: N/A · RCT: YesRCT: 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 reportedYesYesyes
OverallLowCritically Lowno

Included primary studies 17

Open as a trial list
StudyAlso included byOutcomes it informs hereTrial PICOResults
Bagher 2018
matched by author and year (probable)
1 other reviewRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Khan 2023
matched by author and year (probable)
1 other reviewRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Meyer-Lueckel 2016
matched by author and year (probable)
1 other reviewRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Arsalan 2020
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Arslan 2020
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Arthur 2018
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Basili 2017
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Cristian 2017
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Foster 2017
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Jorge 2019
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Mathilde 2018
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Meyer 2016
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Paris 2020
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Peters 2018
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Peters 2019
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Sarti 2020
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot extracted yetnot extracted yet
Treeratweerapong 2023
matched by author and year (probable)
this review onlyRadiographic progression of proximal caries lesionsnot 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).