Question · asked by 1 review
Schwarz appliance vs No active treatment (control): Amount of crowding (change in mandibular crowding) at 8 weeks
- Population
- Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth
- Intervention
- Schwarz appliance
- Comparison
- No active treatment (control)
- Outcome
- Amount of crowding (change in mandibular crowding) at 8 weeks
It is very uncertain whether schwarz appliance changes amount of crowding (lower arch crowding, change) at 9 months compared with no active treatment (control) (very low certainty).
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Schwarz appliance vs No active treatment (control) Amount of crowding (lower arch crowding, change) at 9 months · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth · 9 months (after 6 months treatment) It is very uncertain whether schwarz appliance changes amount of crowding (lower arch crowding, change) at 9 months compared with no active treatment (control) (very low certainty). Orthodontic treatment for crowded teeth in children (2021) · Cochrane All outcomes | MD -2.14 [-2.79, -1.49] | 1 study · 28 participants | Very low |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Orthodontic treatment for crowded teeth in children 2021 · Cochrane All outcomes | 2021-01 | Not listed | Not assessed |
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.