Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

679 questions · 687 findings · 43 reviews

No studies found 169 · 24.6%GRADE not reported 172 · 25%Very low 157 · 22.9%Low 128 · 18.6%Moderate 47 · 6.8%High 14 · 2%

Nitrous oxide vs carbon dioxide

Participant‐reported pain intensity VAS (0‐10, lower score = less pain) · people undergoing laparoscopic general abdominal or gynaecological pelvic surgery under general anaesthesia

It is very uncertain whether nitrous oxide changes pain scores (first postoperative day) VAS, lower score indicates… compared with carbon dioxide (very low certainty).

1 finding from 1 review

Counter-stimulation and distraction (combined) vs Conventional treatment

Acceptance of LA · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

Video modelling acclimatisation vs Acclimatisation in clinic (tell-show-do)

Anxiety · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

Video modelling acclimatisation showed no clear difference in pre- and post-operative anxiety measures (Venham's scale) compared with acclimatisation in clinic (tell-show-do); GRADE not reported.

1 finding from 1 review

Hypnosis vs Conventional treatment

Physical/verbal resistance and self-reported pain during LA (other studies) · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

Hypnosis led to lower physical/verbal resistance and self-reported pain during LA (other… compared with conventional treatment; GRADE not reported.

1 finding from 1 review

The wand (computer-controlled LA delivery system) vs other local anaesthetic

Self- or observational assessment of intraoperative distress/pain/acceptance of treatment during provision of LA: pain-related behaviour (any disruptive behaviour/sudden reaction/movement) · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia
1 finding from 1 review

Video modelling acclimatisation for LA vs Oral hygiene video

Self- or observational assessment of intraoperative distress/pain/acceptance of treatment during provision of LA: anxiety/pain experience (VAS, higher scores indicate worsened anxiety) · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

Video modelling acclimatisation for LA may leads to lower self- or observational assessment of intraoperative… compared with oral hygiene video (low certainty).

1 finding from 1 review

Video modelling acclimatisation for LA vs Oral hygiene video

Acceptance of LA · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

Counter-stimulation and distraction (combined) vs Conventional treatment

Self- or observational assessment of intraoperative distress/pain/acceptance of treatment during provision of LA (SEM scale, distress) · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia
1 finding from 1 review

The wand (computer-controlled LA delivery system) vs Sleeper One (electronic LA delivery system)

Adverse effects · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

The wand (computer-controlled LA delivery system) vs Sleeper One (electronic LA delivery system)

Acceptance of LA · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

Electrical counter-stimulation device (DentalVibe) vs Conventional treatment (no stimulation)

Adverse effects · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

Electrical counter-stimulation device (DentalVibe) vs Conventional treatment (no stimulation)

Acceptance of LA · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review