Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,511 questions · 2,668 findings · 290 reviews

No studies found 743 · 27.8%GRADE not reported 329 · 12.3%Very low 775 · 29%Low 484 · 18.1%Moderate 279 · 10.5%High 58 · 2.2%

Surgery vs Radiotherapy alone

Adverse events associated with treatment · Adults with oropharyngeal cancer
1 finding from 1 review

Light vibrational forces (LVF) vs Conventional orthodontic appliance treatment

Costs · Adolescents and adults with malocclusion undergoing orthodontic treatment with fixed or removable appliances

The review found no eligible studies for this question.

1 finding from 1 review

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

Elective radical (comprehensive) neck dissection vs Elective selective neck dissection

Total mortality · Adults with oral cavity cancer
1 finding from 1 review

Light vibrational forces (LVF) vs Conventional orthodontic appliance treatment

Change in angulation of teeth adjacent to the space (molar and canine tipping/rotation) · Adolescents and adults with malocclusion undergoing orthodontic treatment with fixed or removable appliances
1 finding from 1 review

Elective neck dissection (at time of primary tumour resection) vs Therapeutic (delayed) neck dissection

Adverse events associated with treatment · Adults with oral cavity cancer (tongue or floor of mouth) and clinically negative neck nodes

Elective neck dissection (at time of primary tumour resection) probably leads to higher adverse events associated with treatment compared with therapeutic (delayed) neck dissection (moderate certainty).

1 finding from 1 review

Sentinel node biopsy (neck dissection only if biopsy positive) vs Elective neck dissection

Recurrence · Adults with oral cavity or oropharyngeal cancer
1 finding from 1 review

Low‐level laser therapy vs Conventional orthodontic appliance treatment

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

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

Low‐level laser therapy vs Conventional orthodontic appliance treatment

Side effects or other adverse events · Adolescents and adults with malocclusion undergoing fixed orthodontic appliance treatment
1 finding from 1 review