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Evidence found and GRADE certainty

18 questions · 18 findings · 9 reviews · Orthodontics

No studies found 5 · 27.8%GRADE not reported 8 · 44.4%Very low 4 · 22.2%Low 1 · 5.6%Moderate 0 · 0%High 0 · 0%

Any intervention to manage relapse: fixed options (labial braces, lingual braces, fixed lingual wire) or removable options (Hawley's retainer with spring elastomeric module, Bloore removable aligner, other Hawley's retainer modifications, Invisalign, Clearstep) vs no intervention or another intervention

Patient discomfort · Participants who previously underwent orthodontic treatment, with subsequent crowding (relapse) of the lower front teeth (lower incisors…

The review found no eligible studies for this question.

1 finding from 1 review

Surgical anchorage (mini-screw or mid-palatal implant) vs Conventional anchorage (headgear, transpalatal/palatal arch, etc.)

Patient discomfort · Patients of any age undergoing orthodontic treatment with fixed appliances and requiring anchorage (adolescents to adults up to 48-54 years)
1 finding from 1 review

Vibrational appliance with fixed appliances vs Fixed appliances

Harms (discomfort, pain intensity, analgesia use) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
1 finding from 1 review
  • Orthodontic treatment for crowded teeth in children 2021 · Cochrane All outcomes
    first week
    No clear difference in discomfort/pain intensity or analgesia consumption between vibrational appliance and control (Miles 2012, Miles 2016, Woodhouse 2015; 100 mm VAS). Narrative; no pooled estimate.
    2 studies
    GRADE not reported

Part-time clear plastic (removable) retainer vs Any type of fixed (bonded) retainer

Patient satisfaction: discomfort/pain (lower arch) · People who had received fixed appliance orthodontic treatment

It is very uncertain whether part-time clear plastic (removable) retainer changes patient satisfaction: discomfort/pain (lower arch) compared with any type of fixed (bonded) retainer (very low certainty).

1 finding from 1 review

Fixed-appliance orthodontic treatment incorporating surgically assisted orthodontics (adjunctive surgical procedure: corticotomy, micro-osteoperforation or interseptal bone reduction) to increase the rate of tooth movement vs Conventional orthodontic appliance treatment

Discomfort/pain · Individuals of any age receiving orthodontic treatment with fixed appliances (braces) (people requiring orthodontic tooth movement);…
1 finding from 1 review
  • Surgical adjunctive procedures for accelerating orthodontic treatment 2015 · Cochrane All outcomes
    24 hours to 28 days
    Results: 'Pain experience was compared between surgical and non‐surgical cases in a single study (Alikhani 2013). Within 24 hours of appliance activation and canine retraction, both groups reported higher levels of…
    1 study
    GRADE not reported

Light-emitting diode (LED) photobiomodulation vs Conventional orthodontic appliance treatment

Discomfort/pain · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment

It is very uncertain whether light-emitting diode (LED) photobiomodulation changes patient perception of pain and discomfort (VAS 0 to 100 mm) compared with conventional orthodontic appliance treatment (very low certainty).

1 finding from 1 review

Low‐level laser therapy vs Conventional orthodontic appliance treatment

Discomfort/pain · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment

It is very uncertain whether low level laser therapy (LLLT) changes patient perception of pain and discomfort (VAS 0 to 100 mm) compared with conventional orthodontic appliance treatment (very low certainty).

1 finding from 1 review

Extraction of the primary (baby) canine (single primary tooth extraction) vs No extraction (non-intervention control)

Patient-reported outcomes (pain, discomfort and analgesic use) · Young people aged 9 to 14 years diagnosed with one or both palatally displaced permanent maxillary canines (PDC)
1 finding from 1 review

Open surgical exposure vs Closed surgical exposure

Discomfort/pain · 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

Self-ligating brackets vs Conventional brackets

Harms (discomfort, periodontal/gingival health, root resorption) · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
1 finding from 1 review
  • Orthodontic treatment for crowded teeth in children 2021 · Cochrane All outcomes
    up to 9 months
    No evidence of differences between self-ligating and conventional brackets for discomfort (Atik 2014, Miles 2010), plaque/gingival index and probing depth (Atik 2014), or maxillary incisor root resorption (Aras 2018).…
    3 studies
    GRADE not reported

Open surgical exposure vs Closed surgical exposure

Patient response: total discomfort score (pain, difficulty eating, brushing, speaking, bad taste) · 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 patient response: total discomfort score (pain, difficulty eating,… compared with closed surgical exposure; GRADE not reported.

1 finding from 1 review

Light vibrational forces (LVF) vs Conventional orthodontic appliance treatment

Harms: non-serious adverse effects (headache, discomfort, loosening of temporary anchorage devices) · Adolescents and adults with malocclusion undergoing orthodontic treatment with fixed or removable appliances

Light vibrational forces (LVF) showed no clear difference in harms: non-serious adverse effects (headache, discomfort, loosening… compared with conventional orthodontic appliance treatment (placebo or no adjunct); GRADE not reported.

1 finding from 1 review

Light vibrational forces (LVF) vs Conventional orthodontic appliance treatment

Discomfort/pain · Adolescents and adults with malocclusion undergoing orthodontic treatment with fixed or removable appliances

Light vibrational forces (LVF) showed no clear difference in patient perception of pain and discomfort (VAS 0 to 100 mm),… compared with conventional orthodontic appliance treatment (placebo or no adjunct) (low certainty).

1 finding from 1 review