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Evidence found and GRADE certainty

613 questions · 659 findings · 29 reviews · Orthodontics

No studies found 186 · 28.2%GRADE not reported 294 · 44.6%Very low 87 · 13.2%Low 68 · 10.3%Moderate 21 · 3.2%High 3 · 0.5%

Open surgical exposure vs Closed surgical exposure

Treatment time: length of time in the operating theatre (first incision to final suture) · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)

It is very uncertain whether open surgical exposure changes treatment time: length of time in the operating theatre (first… compared with closed surgical exposure (very low certainty).

1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Gum health: radiographic crestal bone level · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)

Open surgical exposure showed no clear difference in gum health: radiographic crestal bone level compared with closed surgical exposure; GRADE not reported.

1 finding from 1 review

One type of adhesive used to bond molar tubes (chemically-cured composite, light-cured composite, conventional glass ionomer, poly-acid modified composite/compomer, or resin-modified glass ionomer) vs Any other type of adhesive used to bond molar tubes

Decalcification (presence or absence of decay around the attachment) · Participants with full arch fixed orthodontic appliance(s) with molar tubes bonded to first or second permanent molars; excludes prior…

The review found no eligible studies for this question.

1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Aesthetics of the treated canine compared with the untreated contralateral canine · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)
1 finding from 1 review

Bonded molar tubes (attached with adhesive) vs Molar bands (cemented, e.g. with glass ionomer cement)

First time failure at tooth level · Participants with full arch fixed orthodontic appliance(s) with molar tubes bonded to first or second permanent molars; excludes prior…

Bonded molar tubes (attached with adhesive) led to higher first time failure at tooth level compared with molar bands (cemented, e.g. with glass ionomer cement); GRADE not reported.

1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Clinical attachment level (CAL) · People with maxillary palatally displaced (impacted) canines, unilateral or bilateral (children/adolescents; mean ages 14.2 to 17.5 years)

Open surgical exposure showed no clear difference in gum health: clinical attachment level (CAL) compared with closed surgical exposure (low certainty).

1 finding from 1 review

Chemically cured glass ionomer cement vs Light-cured compomer (polyacid-modified composite resin)

Taste preference (patient preference) · Patients with full arch fixed orthodontic appliances with bands attached to molars (patients with cleft lip/palate or other craniofacial…
1 finding from 1 review
  • Adhesives for fixed orthodontic bands 2016 · Cochrane All outcomes
    Approximately 12 months (to end of treatment)
    Williams 2005 (30 participants): a statistically significant difference in patient taste preference in favour of the glass ionomer over the light-cured composite resin (compomer).
    1 study · 30 participants
    GRADE not reported

Light-cured resin-modified glass ionomer cement vs Light-cured compomer (polyacid-modified composite resin)

Band failure (band adhesive loosening) · Patients with full arch fixed orthodontic appliances with bands attached to molars (patients with cleft lip/palate or other craniofacial…
1 finding from 1 review
  • Adhesives for fixed orthodontic bands 2016 · Cochrane All outcomes
    Approximately 12 months (to end of treatment)
    Fricker 1997 was a three-arm split-mouth trial that included a light-cured resin-modified glass ionomer arm (compared with light-cured compomer and chemically cured glass ionomer). Failure rates were reported but not…
    1 study
    GRADE not reported

CBT vs No special instructions (control)

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · Adults undergoing orthodontic treatment

Cognitive behavioural therapy (CBT) led to lower patient‐reported pain intensity or pain relief (VAS, NRS or… compared with no special instructions (control); GRADE not reported.

3 findings from 1 review

Low‐level laser therapy vs Placebo (or no irradiation)

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · Adolescents and adults undergoing orthodontic treatment

Low‐level laser therapy (LLLT) showed no clear difference in patient‐reported pain intensity or pain relief (VAS, NRS or… compared with placebo (or no irradiation); GRADE not reported.

5 findings from 1 review
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Experimental chewing adjuncts (bite wafers or chewing gum) vs No chewing gum, placebo, or control (no adjunct)

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · Adolescents/teenagers undergoing orthodontic treatment

Experimental chewing adjuncts (bite wafers or chewing gum) showed no clear difference in patient‐reported pain intensity or pain relief (VAS, NRS or… compared with no chewing gum, placebo, or control (no adjunct); GRADE not reported.

5 findings from 1 review
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Chemically cured zinc phosphate cement vs Glass ionomer cement (GIC)

Band failure (band adhesive loosening) · Patients with full arch fixed orthodontic appliances with bands attached to molars (patients with cleft lip/palate or other craniofacial…
1 finding from 1 review
  • Adhesives for fixed orthodontic bands 2016 · Cochrane All outcomes
    Approximately 12 months (to end of treatment)
    No meta-analysis (band failure not reported on a per-patient basis). Durning 1989 (69 participants): at ~12 months failure rate 34.78% (zinc phosphate) vs 26% (glass ionomer), P > 0.05; mean survival time 470.9 vs…
    4 studies
    GRADE not reported

Post‐treatment communication (text messaging) vs No communication (no text message)

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)
1 finding from 1 review

Vibratory stimulation (vibratory adjuncts) vs No vibration or placebo vibration

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · Adolescents and adults undergoing orthodontic treatment

Vibratory stimulation (vibratory adjuncts) showed no clear difference in patient‐reported pain intensity or pain relief (VAS, NRS or… compared with no vibration or placebo vibration; GRADE not reported.

5 findings from 1 review
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Zinc polycarboxylate cement vs Any other orthodontic band adhesive

Outcome not reported · Patients with full arch fixed orthodontic appliances with bands attached to molars (patients with cleft lip/palate or other craniofacial…

The review found no eligible studies for this question.

1 finding from 1 review