Non-Cochrane · intervention · PM39609782

Remineralization and anti-demineralization effect of orthodontic adhesives on enamel surrounding orthodontic brackets: a systematic review of in vitro studies.

Hamdi Kareem, Elsebaai Ahmed, Abdelshafi Mostafa A, et al. · BMC oral health · 2024 · PubMed · doi:10.1186/s12903-024-05237-y

Oral HealthDental cariesOrthodonticsAMSTAR 2: 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
12
current version
GRADE rated
0
No studies
0
Included studies
25
linked below
No studies 0 · 0%Ungraded 12 · 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)
PopulationTeeth (human enamel/teeth specimens); non-human/animal teeth excludedHuman enamel specimens around orthodontic brackets (24 in vitro studies; sample sizes about 18 to 96 specimens per study)
InterventionExperimental, modified, or remineralizing orthodontic adhesives applied around orthodontic brackets/appliance (PECOS exposure)Modified orthodontic adhesives: bioactive glass/BAG (n=13), n-ACP (n=2), n-HAP (n=1), n-CaF2 (n=1), n-AFCP (n=1), ammonium-based methacrylate (n=1); plus commercial fluoride/RMGIC/ACP adhesives (n=7)
ComparisonComparison with (conventional) orthodontic adhesivesConventional control orthodontic adhesive (most commonly Transbond XT); some used negative/saline control
OutcomesEnamel surface/subsurface remineralization after application of orthodontic adhesiveRemineralization/anti-demineralization extent (primary; all 24 studies, mostly significant vs control); ion release (secondary; 8 studies)
Study designsIn vitro and in situ studiesIn vitro studies (n=24); cariogenic challenge chemical (majority) or biological/biofilm (n=3: refs 15, 19, 37)
TimingNot specifiedpH cycling / cariogenic challenge 5 days to 6 months (most 14 to 30 days); ion release up to 6 months

Search date: 2005 to 2024 (search coverage; exact search date not reported). Databases: PubMed (including Medline); Scopus; Web of Science

Questions and results

Orthodontic adhesives containing bioactive glass (BAG) particles/nanoparticles (including Ag-, Zn-, fluoride-, or Ga-doped BAG) vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

Population: Human enamel specimens around orthodontic brackets (in vitro)
4 questions
OutcomeEffectEvidenceStatus / GRADE
Enamel remineralization / anti-demineralization extent
pH cycling 14 days to 6 months (majority 14 days) · Overall
In vitro, most bioactive glass-containing orthodontic adhesives (9 of 13 studies) showed significant enamel remineralization/anti-demineralization versus control, but the evidence is weak (predominantly high risk of bias, methodological heterogeneity, no meta-analysis; ungraded).
Source: Results (Remineralization results, primary outcome); Study characteristics; Table 1; Table 2 · same question in other reviews
Out of 13 studies that evaluated bioactive glass particles/nanoparticles, 9 reported definitive statistically significant remineralization potential compared to control orthodontic adhesives [17, 21-24, 26-28, 31]; one…13 studiesUngraded
Enamel remineralization or anti-demineralization
5 days to 6 months
Population: Human teeth with early enamel lesions surrounding orthodontic brackets
No meta-analysis was conducted; most included in vitro studies reported significant remineralization with remineralizing orthodontic adhesives versus controls.
Source: Results, Remineralization results (primary outcome); Conclusion · same question in other reviews
no estimate extracted24 studiesUngraded
Ion release
14 days to 6 months
Population: Human teeth with early enamel lesions surrounding orthodontic brackets
No meta-analysis was conducted; most studies reported increased ion release over time, but few reported peak values.
Source: Results, Ion-release results (secondary outcome) · same question in other reviews
no estimate extracted8 studiesUngraded
Ion release (fluoride, calcium, phosphate)
14 days [31] and 20 days [27,28] (per Discussion); ion-release durations for [23,24] not reported · Overall
In vitro, among the 5 BAG ion-release studies only Ga-doped BAG (GaMBN, Song [31]) reported a significant increase (phosphate, up to 14 days); a general significant fluoride/calcium/phosphate increase across all 5 is not supported (ungraded).
Source: Results (Ion-release results, secondary outcome); Discussion · same question in other reviews
Ion release from BAG-containing adhesives was assessed in 5 studies [23, 24, 27, 28, 31]; a significant increase of phosphate ion release with gallium-doped bioactive glass nanoparticles up to 14 days was reported…5 studiesUngraded

Orthodontic adhesives containing nano-amorphous calcium phosphate (n-ACP) particles/nanoparticles vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

Population: Human enamel specimens around orthodontic brackets (in vitro)
2 questions
OutcomeEffectEvidenceStatus / GRADE
Enamel remineralization extent
pH cycling / biofilm challenge 14 to 28 days · Overall
In vitro, n-ACP-containing orthodontic adhesives showed significant enamel remineralization versus control in both studies, but evidence is weak (only 2 studies; ungraded).
Source: Results (Remineralization results); Study characteristics; Table 1 · same question in other reviews
Studies using orthodontic adhesives containing n-ACP showed statistically significant remineralization compared with control orthodontic adhesives [15, 33].2 studiesUngraded
Calcium and phosphate ion release
up to 42 days · Overall
In vitro, an n-ACP-containing adhesive significantly increased calcium and phosphate ion release up to 42 days in a single study (ungraded).
Source: Results (Ion-release results, secondary outcome) · same question in other reviews
One study using an experimental quaternary ammonium resin monomer + 40% n-ACP adhesive reported a significant increase of calcium and phosphate ion release up to 42 days compared with the control group [33].1 studyUngraded

Experimental orthodontic composite containing nano-hydroxyapatite (n-HAP) vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

Population: Human enamel specimens around orthodontic brackets (in vitro)
1 question
OutcomeEffectEvidenceStatus / GRADE
Superficial surface (enamel) mineralization (surface microhardness)
pH cycling 28 days · Overall
In vitro, a nano-hydroxyapatite-containing orthodontic composite showed significant enamel remineralization versus control in a single study (ungraded).
Source: Results (Remineralization results); Study characteristics; Table 1 · same question in other reviews
A study using an orthodontic composite containing nano-hydroxyapatite showed statistically significant remineralization compared with control orthodontic adhesives [34].1 studyUngraded

Orthodontic adhesive/composite containing nano-calcium fluoride (n-CaF2), alone or with DMAHDM vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

Population: Human enamel specimens around orthodontic brackets (in vitro)
1 question
OutcomeEffectEvidenceStatus / GRADE
Enamel remineralization extent
pH cycling 30 days · Overall
In vitro, a nano-CaF2-containing orthodontic cement showed significant enamel remineralization versus control in a single study (ungraded).
Source: Results (Remineralization results); Study characteristics; Table 1 · same question in other reviews
A study using an orthodontic adhesive containing nano-calcium fluoride showed statistically significant remineralization compared with control orthodontic adhesives [35].1 studyUngraded

Experimental orthodontic adhesive containing amorphous fluorinated calcium phosphate nanoparticles (n-AFCP) vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

Population: Human enamel specimens around orthodontic brackets (in vitro)
1 question
OutcomeEffectEvidenceStatus / GRADE
Enamel remineralization extent and color change
pH cycling 21 days · Overall
In vitro, an n-AFCP-containing orthodontic primer showed significant enamel remineralization and less color change versus control in a single study (ungraded).
Source: Results (Remineralization results); Study characteristics; Table 1 · same question in other reviews
A study using an orthodontic primer containing amorphous fluorinated calcium phosphate nanoparticles showed statistically significant remineralization and less enamel color change (delta-E) compared with the control…1 studyUngraded

Experimental adhesive containing ammonium-based methacrylate monomer (MADQUAT) vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

Population: Human enamel specimens around orthodontic brackets (in vitro)
1 question
OutcomeEffectEvidenceStatus / GRADE
Enamel remineralization / carious lesion development
biofilm cariogenic challenge 5 days · Overall
In vitro, an ammonium-based methacrylate-containing adhesive showed significant remineralization/anti-demineralization versus control in a single study (ungraded).
Source: Results (Remineralization results); Study characteristics; Table 1 · same question in other reviews
A study using an orthodontic adhesive containing ammonium-based methacrylate showed significant remineralization power compared with control adhesives [37].1 studyUngraded

Commercial fluoride-releasing RMGIC orthodontic adhesive (Fuji Ortho LC) vs Conventional non-fluoride control orthodontic adhesive (e.g., Transbond XT)

Population: Human enamel specimens around orthodontic brackets (in vitro)
1 question
OutcomeEffectEvidenceStatus / GRADE
Fluoride ion release
up to 6 months · Overall
In vitro, the commercial RMGIC Fuji Ortho LC showed significant fluoride release up to 6 months in a single study (ungraded).
Source: Results (Ion-release results, secondary outcome) · same question in other reviews
One study reported significant fluoride release from the commercial RMGIC Fuji Ortho LC up to 6 months [14].1 studyUngraded

Comparison

1 question
OutcomeEffectEvidenceStatus / GRADE
Fluoride ion release
nCaF2-containing orthodontic adhesive (Yi 2024 [35]); significant increase up to 56 days vs control
no estimate extracted1 studyUngraded

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 YesPartial Yesyes
3Choice of study designs explainedYesYesyes
4Comprehensive literature searchcriticalPartial YesPartial Yesyes
5Study selection in duplicateYesYesyes
6Data extraction in duplicateYesYesyes
7List of excluded studies with reasonscriticalNoNoyes
8Included studies described in detailPartial YesYesno
9Risk of bias assessed satisfactorilycriticalNRSI: N/A · RCT: N/ANRSI: N/A · RCT: N/Ayes
10Funding of included studies reportedNoNoyes
11Appropriate meta-analysis methodscriticalRCT: N/A · NRSI: N/ANRSI: N/A · RCT: N/Ano
12Impact of risk of bias on the pooled resultsN/AN/Ayes
13Risk of bias accounted for in interpretationcriticalYesYesyes
14Heterogeneity explainedYesN/Ano
15Publication bias investigatedcriticalN/AN/Ayes
16Conflicts of interest reportedYesYesyes
OverallLowLowyes

Included primary studies 25

Open as a trial list
StudyAlso included byOutcomes it informs hereTrial PICOResults
Bhushan 2021
Assessment of the Effectiveness of Different Fluoride-releasing Bonding Agents on Prevention of Enamel Demineralization around Orthodontic…
PMID:35197380
this review onlyPM39609782-P7-O1not extracted yetnot extracted yet
Choi 2021
Anti-Microbial and Remineralizing Properties of Self-Adhesive Orthodontic Resin Containing Mesoporous Bioactive Glass.
PMID:34202013
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Choi 2022
Enhanced antimicrobial and remineralizing properties of self-adhesive orthodontic resin containing mesoporous bioactive glass and…
PMID:35756757
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Chow 2011
In vitro properties of orthodontic adhesives with fluoride or amorphous calcium phosphate.
PMID:21912546
this review onlyPM39609782-P7-O1not extracted yetnot extracted yet
Demircioglu 2023
matched by author and year (probable)
this review onlyPM39609782-P7-O1not extracted yetnot extracted yet
Firoz 2019
matched by author and year (probable)
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Firzok 2019
matched by author and year (probable)
this review onlynot statednot extracted yetnot extracted yet
Iijima 2013
Effects of the addition of fluoride to a 4-META/MMA-TBB-based resin adhesive on fluoride release, acid resistance of enamel and shear bond…
PMID:23370885
this review onlyPM39609782-P7-O1not extracted yetnot extracted yet
Kim 2018
Antibacterial and remineralization effects of orthodontic bonding agents containing bioactive glass.
PMID:29732302
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Kohda 2015
Inhibition of enamel demineralization and bond-strength properties of bioactive glass containing 4-META/MMA-TBB-based resin adhesive.
PMID:25903115
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Lee 2017
Remineralization Property of an Orthodontic Primer Containing a Bioactive Glass with Silver and Zinc.
PMID:29088092
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Liu 2018
Antibacterial and remineralizing orthodontic adhesive containing quaternary ammonium resin monomer and amorphous calcium phosphate…
PMID:29534887
this review onlyEnamel remineralization extentnot extracted yetnot extracted yet
Ma 2017
Novel multifunctional dental cement to prevent enamel demineralization near orthodontic brackets.
PMID:28642057
this review onlyEnamel remineralization extentnot extracted yetnot extracted yet
Manfred 2013
A novel biomimetic orthodontic bonding agent helps prevent white spot lesions adjacent to brackets.
PMID:22765388
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Nam 2019
Enamel Surface Remineralization Effect by Fluorinated Graphite and Bioactive Glass-Containing Orthodontic Bonding Resin.
PMID:31013602
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Nam 2019
Fluorinated Bioactive Glass Nanoparticles: Enamel Demineralization Prevention and Antibacterial Effect of Orthodontic Bonding Resin.
PMID:31167432
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Nascimento 2017
Addition of ammonium-based methacrylates to an experimental dental adhesive for bonding metal brackets: Carious lesion development and…
PMID:28457273
this review onlyEnamel remineralization / carious lesion developmentnot extracted yetnot extracted yet
Parihar 2024
matched by author and year (probable)
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Paschos 2009
Effect of different bonding agents on prevention of enamel demineralization around orthodontic brackets.
PMID:19409343
this review onlyPM39609782-P7-O1not extracted yetnot extracted yet
Rahmanpanah 2023
Evaluation of shear bond strength and enamel remineralizing effect of experimental orthodontic composite containing nano-hydroxyapatite:…
PMID:36669460
this review onlySuperficial surface (enamel) mineralization (surface microhardness)not extracted yetnot extracted yet
Seifi 2024
Investigation of mechanical properties, remineralization, antibacterial effect, and cellular toxicity of composite orthodontic adhesive…
PMID:38824555
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Shirazi 2019
Effect of addition of bioactive glass to resin modified glass ionomer cement on enamel demineralization under orthodontic brackets.
PMID:31346371
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Song 2019
matched by author and year (probable)
this review onlyEnamel remineralization or anti-demineralizationnot extracted yetnot extracted yet
Xu 2023
Effects of an orthodontic primer containing amorphous fluorinated calcium phosphate nanoparticles on enamel white spot lesions.
PMID:36379092
this review onlyEnamel remineralization extent and color changenot extracted yetnot extracted yet
Yi 2019
A nano-CaF2-containing orthodontic cement with antibacterial and remineralization capabilities to combat enamel white spot lesions.
PMID:31326528
this review onlyEnamel remineralization extentnot extracted yetnot extracted yet