Incidence of microleakage · Er,Cr:YSGG laser-prepared cavities restored with self-etch adhesive systems (in vitro)
At the dentin margin, prior acid etching with self-etch adhesives significantly reduced microleakage (RR 2.44, 95% CI 1.38-4.34; ungraded).
3 findings from 1 review
RR 2.44 [1.38, 4.34]
2 studies
GRADE not reported
RR 3.00 [1.54, 5.83]
2 studies
GRADE not reported
RR 2.69 [1.74, 4.15]
2 studies
GRADE not reported
Incidence of microleakage · Er,Cr:YSGG laser-prepared cavities restored with etch-and-rinse adhesive systems (in vitro)
Prior acid etching with etch-and-rinse adhesives did not significantly change microleakage after Er,Cr:YSGG preparation (RR 1.18, 95% CI 0.63-2.22; ungraded).
1 finding from 1 review
RR 1.18 [0.63, 2.22]
2 studies
GRADE not reported
Enamel demineralization (DIAGNOdent score) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
ACP adhesive had lower demineralization scores at 1 month, with certainty not graded.
2 findings from 1 review
At T1, the control group had an average demineralization score of 3.39 (±1.29), whereas the ACP group had a notably lower average score of 2.58 (±1.11) (p-value of 0.000).
1 study · 26 participants
GRADE not reported
At T2, the control group had an average score of 4.32 (±2.32), while the ACP group continued to exhibit a lower average score of 3.41 (±1.11) (p-value of 0.000).
1 study · 26 participants
GRADE not reported
Enamel remineralization / anti-demineralization extent · 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.
1 finding from 1 review
no estimate extracted
24 studies
GRADE not reported
Ion release · 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.
1 finding from 1 review
no estimate extracted
8 studies
GRADE not reported
Enamel demineralization (QLF ΔF) · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
Flash-free brackets showed no clinical WSL reduction, with certainty not graded.
1 finding from 1 review
White spot lesion rate and volume · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)
Opal Seal showed no significant difference in WSL rate or volume, with certainty not graded.
1 finding from 1 review
The WSL volume was lower in the Opal Seal group than in the Clearfil and Transbond XT groups, but there was no significant difference among the groups (p > 0.05).
1 study · 15 participants
GRADE not reported
Enamel demineralization (DIAGNOdent score) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)
A single triple-blinded RCT found the ACP-containing adhesive reduced enamel demineralization versus a conventional adhesive over 6 months (ungraded).
1 finding from 1 review
White spot lesions assessed by laser fluorescence (DIAGNOdent) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)
Two studies found adhesive flash-free brackets did not clinically reduce enamel demineralization or white spot lesions versus conventional brackets, though they reduced pathogenic bacteria (ungraded).
1 finding from 1 review
Enamel demineralization (DIAGNOdent score) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)
Across three small non-randomized studies, fluoride-releasing primers (Opal Seal, Clearfil) showed no consistent clinical advantage over conventional primers in preventing white spot lesions (ungraded).
1 finding from 1 review
Fluoride ion release · Human enamel specimens around orthodontic brackets (in vitro)
In vitro, the commercial RMGIC Fuji Ortho LC showed significant fluoride release up to 6 months in a single study (ungraded).
1 finding from 1 review
White spot lesion development (QLF: mineral loss, lesion area/depth, new lesions) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)
A single RCT found the one-step adhesive without a primer (GC Ortho Connect) produced more and more severe white spot lesions than conventional multi-step systems (ungraded).
1 finding from 1 review
Calcium and phosphate ion release · Human enamel specimens around orthodontic brackets (in vitro)
In vitro, an n-ACP-containing adhesive significantly increased calcium and phosphate ion release up to 42 days in a single study (ungraded).
1 finding from 1 review
Enamel remineralization / carious lesion development · Human enamel specimens around orthodontic brackets (in vitro)
In vitro, an ammonium-based methacrylate-containing adhesive showed significant remineralization/anti-demineralization versus control in a single study (ungraded).
1 finding from 1 review
Enamel remineralization extent · Human enamel specimens around orthodontic brackets (in vitro)
In vitro, a nano-CaF2-containing orthodontic cement showed significant enamel remineralization versus control in a single study (ungraded).
1 finding from 1 review
Enamel remineralization extent · Human enamel specimens around orthodontic brackets (in vitro)
In vitro, n-ACP-containing orthodontic adhesives showed significant enamel remineralization versus control in both studies, but evidence is weak (only 2 studies; ungraded).
1 finding from 1 review
Enamel remineralization extent and color change · Human enamel specimens around orthodontic brackets (in vitro)
In vitro, an n-AFCP-containing orthodontic primer showed significant enamel remineralization and less color change versus control in a single study (ungraded).
1 finding from 1 review
Ion release (fluoride, calcium, phosphate) · Human enamel specimens around orthodontic brackets (in vitro)
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).
1 finding from 1 review
Enamel remineralization / anti-demineralization extent · Human enamel specimens around orthodontic brackets (in vitro)
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).
1 finding from 1 review
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 studies
GRADE not reported
Restoration failure · Children with carious primary teeth
No comparative effect estimate was reported; etch-and-rinse had a higher tabulated failure rate.
1 finding from 1 review