Non-Cochrane · intervention · PM34106348

Efficacy of resin infiltration to mask post-orthodontic or non-post-orthodontic white spot lesions or fluorosis - a systematic review and meta-analysis.

Bourouni S, Dritsas K, Kloukos D, et al. · Clinical oral investigations · 2021 · PubMed · doi:10.1007/s00784-021-03931-7

Oral HealthDental cariesOrthodonticsAMSTAR 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
11
current version
GRADE rated
3
No studies
0
Included studies
11
linked below
No studies 0 · 0%Ungraded 8 · 72.7%Very low 0 · 0%Low 0 · 0%Moderate 3 · 27.3%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)
PopulationPatients of any age with white spot lesions (WSL) or fluorosisPatients 8-30 years of age with post-orthodontic or non-post-orthodontic WSL or fluorosis (413 patients, 1834 teeth; n=11 studies)
InterventionResin infiltrationResin infiltration (Icon) (n=11)
ComparisonAny other (placebo) treatment or untreated controlUntreated control / natural remineralization (n=4); fluoride varnish (n=4); microabrasion (n=2); bleaching (n=2)
OutcomesPrimary: any esthetic outcome; secondary: patient-related outcome measures (PROMs) such as pain, satisfaction, discomfort, quality-of-life indicators, and economic factorsOptical/esthetic improvement via DIAGNOdent, spectroscopy, colorimetric values, ICDAS II/LAA-ICDAS, modified enamel decalcification score, and VAS; patient satisfaction / oral health-related quality of life
Study designsRandomized controlled clinical trials (RCTs), prospective controlled clinical trials (CCTs), prospective and retrospective cohort studies, and split-mouth and parallel-arm designs9 RCTs, 1 prospective cohort study, 1 study of unclear design (n=11)
TimingNot specified (maximum follow-up over all groups used)Follow-up 1 day to 12 months (median 6 months)

Search date: Not specified. Databases: Central; PubMed; Ovid MEDLINE; Ovid EMBASE; LILACS; grey literature via ClinicalTrials.gov, OpenGrey, the National Research Register, and ProQuest Dissertation Abstracts and Thesis databases

Questions and results

Resin infiltration vs Untreated control (natural remineralization)

Population: Patients with post-orthodontic white spot lesions (WSL)
4 questions
OutcomeEffectEvidenceStatus / GRADE
Optical/esthetic improvement (visual-tactile assessment)
4 weeks to 6 months
Resin infiltration produced significantly greater optical improvement of white spot lesions than untreated (naturally remineralizing) controls (SMD 1.24, 95% CI 0.59 to 1.88; moderate certainty).
Source: Abstract; Results (Fig. 2); Fig. 2 (forest plot, overall); Quality assessment (Supplementary material Table 4, GRADE) · same question in other reviews
SMD 1.24 [0.59, 1.88]3 studies · 949 participantsModerate
Downgraded: risk of bias
Optical/esthetic improvement (visual-tactile assessment)
4 weeks to 6 months · Visual analog scale (Senestraro et al. 2013)
In the visual analog scale subgroup, resin infiltration improved optical appearance versus untreated control (SMD 2.34, 95% CI 1.68 to 3.01; ungraded subgroup).
Source: Fig. 2 (forest plot, subgroup) · same question in other reviews
SMD 2.34 [1.68, 3.01]1 study · 66 participantsUngraded
Optical/esthetic improvement (visual-tactile assessment)
4 weeks to 6 months · Spectroscopy delta-E (Knosel et al. 2013)
In the spectroscopy delta-e subgroup, resin infiltration improved optical appearance versus untreated control (SMD 0.63, 95% CI 0.26 to 1.01; ungraded subgroup).
Source: Fig. 2 (forest plot, subgroup) · same question in other reviews
SMD 0.63 [0.26, 1.01]1 study · 115 participantsUngraded
Optical/esthetic improvement (visual-tactile assessment)
4 weeks to 6 months · Modified enamel decalcification index (Cronan 2012)
In the modified enamel decalcification index subgroup, resin infiltration improved optical appearance versus untreated control (SMD 0.98, 95% CI 0.83 to 1.13; ungraded subgroup).
Source: Fig. 2 (forest plot, subgroup) · same question in other reviews
SMD 0.98 [0.83, 1.13]1 study · 768 participantsUngraded

Resin infiltration vs Fluoride varnish

Population: Patients (mainly children) with white spot lesions (WSL)
3 questions
OutcomeEffectEvidenceStatus / GRADE
Optical/esthetic improvement (DIAGNOdent reading)
3 to 6 months
Resin infiltration produced significantly greater optical improvement than fluoride varnish (MD 4.76, 95% CI 0.74 to 8.78; moderate certainty).
Source: Abstract; Results (Fig. 3); Fig. 3 (forest plot, overall); Quality assessment (Supplementary material Table 4, GRADE) · same question in other reviews
MD 4.76 [0.74, 8.78]3 studies · 212 participantsModerate
Downgraded: risk of bias
Optical/esthetic improvement (DIAGNOdent reading)
3 to 6 months · Mild lesions, DIAGNOdent score <=14 (Ciftci et al. 2018; Giray et al. 2018)
In the mild lesions subgroup, resin infiltration gave greater optical improvement than fluoride varnish (MD 3.65, 95% CI 0.82 to 6.48; ungraded subgroup).
Source: Fig. 3 (forest plot, subgroup) · same question in other reviews
MD 3.65 [0.82, 6.48]2 studies · 172 participantsUngraded
Optical/esthetic improvement (DIAGNOdent reading)
3 to 6 months · Severe lesions, DIAGNOdent score >14 (Gozetici et al. 2019)
In the severe lesions subgroup, resin infiltration gave greater optical improvement than fluoride varnish (MD 13.15, 95% CI 3.98 to 22.32; ungraded subgroup).
Source: Fig. 3 (forest plot, subgroup) · same question in other reviews
MD 13.15 [3.98, 22.32]1 study · 40 participantsUngraded

Bleaching before resin infiltration (bleaching + infiltration) vs Resin infiltration alone

Population: Patients with dental fluorosis
2 questions
OutcomeEffectEvidenceStatus / GRADE
Patient/dentist satisfaction
Patient/dentist satisfaction did not differ between bleaching-then-infiltration and infiltration alone (SMD -1.53, 95% CI -4.75 to 1.70; ungraded).
Source: Results para 4; Supplementary material Figure 1 · same question in other reviews
SMD -1.53 [-4.75, 1.70]2 studiesUngraded
Masking effect (esthetic improvement)
Bleaching before resin infiltration did not improve masking of fluorosis compared with infiltration alone (MD -0.30, 95% CI -0.98 to 0.39; moderate certainty).
Source: Abstract; Quality assessment (Supplementary material Table 4, GRADE) · same question in other reviews
MD -0.30 [-0.98, 0.39]2 studiesModerate
Downgraded: risk of bias

Resin infiltration alone vs In-office bleaching alone

Population: Patients with dental fluorosis
1 question
OutcomeEffectEvidenceStatus / GRADE
Dentist satisfaction (masking effect)
Resin infiltration alone produced greater dentist-rated masking than in-office bleaching alone in one study (MD 3.97, 95% CI 3.33 to 4.61; ungraded).
Source: Results para 4 · same question in other reviews
MD 3.97 [3.33, 4.61]1 studyUngraded

Resin infiltration vs Microabrasion

Population: Patients with white spot lesions or developmental enamel defects
1 question
OutcomeEffectEvidenceStatus / GRADE
Masking effect / color improvement
Two studies compared resin infiltration with microabrasion, but no pooled or comparative effect estimate was reported (ungraded).
Source: Results para 1 (comparisons); Discussion · same question in other reviews
no estimate extracted2 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 reviewcriticalPartial YesNono
3Choice of study designs explainedYesNono
4Comprehensive literature searchcriticalYesPartial Yesno
5Study selection in duplicateYesYesyes
6Data extraction in duplicateYesYesyes
7List of excluded studies with reasonscriticalNoNoyes
8Included studies described in detailYesPartial Yesno
9Risk of bias assessed satisfactorilycriticalRCT: Yes · NRSI: YesNRSI: Yes · RCT: Yesno
10Funding of included studies reportedNoNoyes
11Appropriate meta-analysis methodscriticalRCT: Yes · NRSI: NoNRSI: Yes · RCT: Yesno
12Impact of risk of bias on the pooled resultsNoNoyes
13Risk of bias accounted for in interpretationcriticalYesYesyes
14Heterogeneity explainedYesYesyes
15Publication bias investigatedcriticalNoN/Ano
16Conflicts of interest reportedYesNono
OverallCritically LowCritically Lowyes

Included primary studies 11

Open as a trial list
StudyAlso included byOutcomes it informs hereTrial PICOResults
Kannan et al. 2019
Comparative evaluation of Icon® resin infiltration and Clinpro™ XT varnish on colour and fluorescence changes of white spot lesions: a…
PMID:31204437
2 other reviewsnot statednot extracted yetnot extracted yet
Gu et al. 2019
Esthetic improvements of postorthodontic white-spot lesions treated with resin infiltration and microabrasion: A split-mouth, randomized…
PMID:30719932
1 other reviewMasking effect / color improvementnot extracted yetnot extracted yet
Knosel et al. 2019
Long-term follow-up of camouflage effects following resin infiltration of post orthodontic white-spot lesions in vivo.
PMID:30324799
1 other reviewOptical/esthetic improvement (visual-tactile assessment)not extracted yetnot extracted yet
Ciftci et al. 2018
The efficacy of resin infiltrate on the treatment of white spot lesions and developmental opacities
DOI:10.4103/njcp.njcp_235_18
this review onlyOptical/esthetic improvement (DIAGNOdent reading)not extracted yetnot extracted yet
Cronan 2012
matched by author and year (probable)
this review onlyOptical/esthetic improvement (visual-tactile assessment)not extracted yetnot extracted yet
Gencer et al. 2019
A comparison of the effectiveness of resin infiltration and microabrasion treatments applied to developmental enamel defects in color…
DOI:10.4012/dmj.2018-074
this review onlyMasking effect / color improvementnot extracted yetnot extracted yet
Giray et al. 2018
Resin infiltration technique and fluoride varnish on white spot lesions in children: Preliminary findings of a randomized clinical trial
DOI:10.4103/njcp.njcp_209_18
this review onlyOptical/esthetic improvement (DIAGNOdent reading)not extracted yetnot extracted yet
Gozetici et al. 2019
DOI:10.3290/j.ohpd.a42203
this review onlyOptical/esthetic improvement (DIAGNOdent reading)not extracted yetnot extracted yet
Gugnani et al. 2017
Comparative evaluation of esthetic changes in nonpitted fluorosis stains when treated with resin infiltration, in‐office bleaching, and…
DOI:10.1111/jerd.12312
this review onlyMasking effect (esthetic improvement)not extracted yetnot extracted yet
Schoppmeier et al. 2018
Power bleaching enhances resin infiltration masking effect of dental fluorosis. A randomized clinical trial
DOI:10.1016/j.jdent.2018.10.005
this review onlyMasking effect (esthetic improvement)not extracted yetnot extracted yet
Senestraro et al. 2013
Minimally invasive resin infiltration of arrested white-spot lesions
DOI:10.14219/jada.archive.2013.0225
this review onlyOptical/esthetic improvement (visual-tactile assessment)not 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).