Findings

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Evidence found and GRADE certainty

762 questions · 830 findings · 43 reviews · Orthodontics

No studies found 186 · 22.4%GRADE not reported 410 · 49.4%Very low 122 · 14.7%Low 79 · 9.5%Moderate 30 · 3.6%High 3 · 0.4%

Surgical miniplates with facemask vs Surgical miniplates with Class III elastics

ANB · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Surgical miniplates with facemask showed no clear difference in ANB compared with surgical miniplates with Class III elastics; GRADE not reported.

1 finding from 1 review

Remineralizing orthodontic adhesives vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

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

Facemask with rapid maxillary expansion (RME) vs Reverse Twin Block with lip pads and rapid maxillary expander (RME)

ANB · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Facemask with rapid maxillary expansion (RME) led to lower ANB compared with reverse Twin Block with lip pads and rapid maxillary expander (RME); GRADE not reported.

1 finding from 1 review

Facemask (RME) or modified facemask vs Surgically-anchored appliance (miniscrews or miniplates)

Perceived need for surgery in adulthood · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

The review found no eligible studies for this question.

1 finding from 1 review

Transbond Plus self etching primer (3M Unitek) vs Conventional three-step bonding system (3M Transbond XT)

White spot lesion incidence · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)

The self-etch primer system had higher WSL incidence than the conventional system, with certainty not graded.

1 finding from 1 review

Opal Seal fluoride-releasing adhesive vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

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

Farzanegan 2021 = Transbond XT + 1% chitosan + 1% TiO2 (co-intervention); Mollabashi 2022 = TiO2-only composite (1 wt%) vs Conventional/control orthodontic adhesive (e.g., Transbond XT) or negative control

Enamel demineralization / white spot lesion prevention (DIAGNOdent, enamel mineral content) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)

Two small RCTs gave inconsistent results for TiO2-modified adhesives/composites on enamel demineralization (one favorable on DIAGNOdent, one no difference in mineral content); ungraded.

1 finding from 1 review

nCaF2 primer vs Control Transbond primer

White spot lesions assessed by laser fluorescence (DIAGNOdent) · Patients undergoing fixed orthodontic (fixed appliance) treatment (adolescents and adults, ages 12 to 35)

A single small split-mouth RCT found the nCaF2-containing primer reduced demineralization (DIAGNOdent) but showed no significant clinical white spot lesion difference at debonding (ungraded).

1 finding from 1 review

Non-surgical orthodontic treatment (any: facemask, chin cup, tandem traction bow, mandibular headgear, ORTA, reverse Twin Block, Reverse Forsus) vs no treatment

ANB · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Non-surgical orthodontic treatment (any: facemask, chin cup, tandem… probably leads to higher ANB compared with no treatment (moderate certainty).

1 finding from 1 review

Facemask with rapid maxillary expansion (RME) vs Reverse Forsus

Overjet · Children and adolescents (aged 16 years or younger) with prominent lower front teeth (Class III malocclusion)

Facemask with rapid maxillary expansion (RME) showed no clear difference in overjet compared with reverse Forsus; GRADE not reported.

1 finding from 1 review

nCaF2 primer vs Control Transbond primer

Photographic white spot lesion score · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)

nCaF2 primer showed no clinical photographic WSL difference at debonding, with certainty not graded.

1 finding from 1 review

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

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

Superelastic NiTi arch wire vs Conventional (stabilised) NiTi arch wire

Time to next/working arch wire · People receiving orthodontic treatment with fixed appliances (upper and/or lower full arch)

Superelastic NiTi arch wire showed no clear difference in time to next/working arch wire compared with conventional (stabilised) NiTi arch wire; GRADE not reported.

1 finding from 1 review

Fixed orthodontic treatment with fixed (multibracket) appliances (exposure) vs None (single-group prevalence/incidence estimate)

Association between orthodontic treatment duration and ICLs incidence · Patients undergoing fixed orthodontic treatment with fixed (multibracket) appliances, followed for development of new ICLs

ICLs incidence increased with longer orthodontic treatment duration (meta-regression P<.01; ungraded).

1 finding from 1 review

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

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

nCaF2 primer vs Control Transbond primer

Streptococcus mutans count · Orthodontic patients of any age with fixed braces (new DLs assessed at debond)

nCaF2 primer differed in S. mutans count only at T1, with certainty not graded.

1 finding from 1 review