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)
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Rate of orthodontic tooth movement during space closure stage (maxillary arch), mm/month · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
It is very uncertain whether low level laser therapy (LLLT) changes rate of orthodontic tooth movement during space closure stage… compared with conventional orthodontic appliance treatment (very low certainty).
1 finding from 1 review
Side effects or other adverse events · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
1 finding from 1 review
Periodontal health during molar intrusion · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
1 finding from 1 review
Abellan 2021 assessed periodontal health (plaque index, pocket depth, bleeding on probing) after intrusion of maxillary molars; no evidence of significant difference with LLLT. Statistical test results not published.
1 study
GRADE not reported
Total number of orthodontic appliance adjustment appointments during alignment stage · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
It is very uncertain whether low level laser therapy (LLLT) changes total number of orthodontic appliance adjustment appointments during… compared with conventional orthodontic appliance treatment (very low certainty).
1 finding from 1 review
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
Duration of orthodontic treatment during alignment stage · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
It is very uncertain whether low level laser therapy (LLLT) changes duration of orthodontic treatment during alignment stage compared with conventional orthodontic appliance treatment (very low certainty).
1 finding from 1 review
Patient-reported need for analgesics · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
The review found no eligible studies for this question.
1 finding from 1 review
Total number of orthodontic appliance adjustment appointments during treatment · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
The review found no eligible studies for this question.
1 finding from 1 review
Overall treatment time wearing orthodontic appliances · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
The review found no eligible studies for this question.
1 finding from 1 review
Orthodontic tooth movement (OTM) during alignment stage · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
It is very uncertain whether low level laser therapy (LLLT) changes rate of orthodontic tooth movement during alignment stage… compared with conventional orthodontic appliance treatment (very low certainty).
1 finding from 1 review
Rate of maxillary molar intrusion for correction of anterior open bite · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
1 finding from 1 review
Two studies (62 participants), not pooled. Abellan 2021: no significant difference in molar intrusion at 3 months (1.25 vs 1.72 mm) or 6 months (1.09 vs 1.28 mm), nor rate per month. Hasan 2022: increased intrusion…
2 studies · 62 participants
GRADE not reported
Orthodontically-induced inflammatory root resorption (OIIRR) during molar intrusion · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
1 finding from 1 review
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
MD -10.63 [-22.33, 1.07]
2 studies · 118 participants
GRADE not reported
MD -6.39 [-8.65, -4.13]
1 study · 58 participants
GRADE not reported
Two further studies (160 participants) used bespoke assessments. Harazaki 1997 (84 participants): slightly lower proportion reporting severe pain in the intervention group, no inferential statistics. Turhani 2006 (76…
2 studies · 160 participants
GRADE not reported
Show 2 more findings
MD -10.76 [-13.80, -7.73]
2 studies · 118 participants
GRADE not reported
MD -20.27 [-24.50, -16.04]
2 studies · 118 participants
Low
Adverse effects of pain treatment · Adolescents and adults undergoing orthodontic treatment
The review found no eligible studies for this question.
1 finding from 1 review
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
MD -27.91 [-40.10, -15.72]
1 study · 24 participants
GRADE not reported
MD -6.50 [-17.64, 4.64]
1 study · 24 participants
GRADE not reported
MD -20.67 [-32.12, -9.22]
1 study · 24 participants
Very low
Adverse effects of pain treatment · Adults undergoing orthodontic treatment
The review found no eligible studies for this question.
1 finding from 1 review
Canine expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
Fixed bonded Hyrax appliance followed by U-bow activator therapy showed no clear difference in canine expansion compared with no treatment; GRADE not reported.
1 finding from 1 review
Molar expansion · Children and adults with a posterior crossbite, without a Class III skeletal relationship, cleft lip or palate (or both), or other…
Fixed bonded Hyrax appliance followed by U-bow activator therapy showed no clear difference in molar expansion compared with no treatment; GRADE not reported.
1 finding from 1 review