Schwarz appliance vs No active treatment (control): Position of the incisors (upper incisor inclination)
Schwarz appliance showed no clear difference in upper incisors to maxilla (inclination, degrees) at 9 months compared with no active treatment (control); GRADE not reported.
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Schwarz appliance vs No active treatment (control) Upper incisors to maxilla (inclination, degrees) at 9 months · Children or adolescents (aged 16 years old or under) receiving orthodontic treatment to prevent or correct crowded teeth · 9 months Schwarz appliance showed no clear difference in upper incisors to maxilla (inclination, degrees) at 9 months compared with no active treatment (control); GRADE not reported. Orthodontic treatment for crowded teeth in children (2021) · Cochrane All outcomes | MD 0.33 [-2.26, 2.92] | 1 study · 28 participants | GRADE not reported |
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 | list not extracted yet | Not assessed |
Studies behind the findings
None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.
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.