Twin Block functional appliance vs Modified Twin Block appliances: Final overjet
- Population
- Adolescents (age 12 to 16 years) receiving orthodontic treatment to correct prominent upper front teeth (Class II malocclusion)
- Intervention
- Twin Block functional appliance
- Comparison
- Modified Twin Block appliances
- Outcome
- Final overjet
Twin Block functional appliance (conventional) showed no clear difference in final overjet compared with modified Twin Block appliances; GRADE not reported.
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Twin Block functional appliance (conventional) vs Modified Twin Block appliances Final overjet · Adolescents (age 12 to 16 years) receiving orthodontic treatment to correct prominent upper front teeth (Class II… · End of orthodontic treatment Twin Block functional appliance (conventional) showed no clear difference in final overjet compared with modified Twin Block appliances; GRADE not reported. Orthodontic treatment for prominent upper front teeth (Class II malocclusion) in children and adolescents (2018) · Cochrane All outcomes | MD -0.23 [-0.67, 0.22] | 2 studies · 196 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 prominent upper front teeth (Class II malocclusion) in children and adolescents 2018 · Cochrane All outcomes | 2017-09 | Not listed | Not assessed |
Related questions
The same intervention and outcome, asked in another population or against another comparator.
- Twin Block functional appliance vs Other functional appliances (Bionator, Herbst, R-appliance, Dynamax, Bite-Jumping) · Adolescents (age 12 to 16 years) receiving orthodontic treatment to correct prominent… · 1 review
- Twin Block functional appliance vs Other functional appliances (Bionator, Herbst, R-appliance, Dynamax, Bite-Jumping) · Children and/or adolescents (age < 16 years) receiving orthodontic treatment to correct… · 0 reviews
- Twin Block functional appliance vs Modified Twin Block appliances · Children and/or adolescents (age < 16 years) receiving orthodontic treatment to correct… · 0 reviews
- Twin Block functional appliance vs Other functional appliances (Bionator, Herbst, R-appliance, Dynamax, Bite-Jumping) · Children or adolescents (age < 16 years) receiving orthodontic treatment to correct… · 0 reviews
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.