Question · asked by 1 review
Frankel's function regulator-4 (FR-4) with lip-seal training vs no treatment: Position of the incisors (upper incisor inclination)
- Population
- Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of vertical overlap or contact of the upper and lower incisors); sucking habits stopped 1 year or more before treatment; excluding class III skeletal relationship, cleft lip or palate, or other craniofacial syndrome
- Intervention
- Frankel's function regulator-4 (FR-4) with lip-seal training
- Comparison
- no treatment
- Outcome
- Position of the incisors (upper incisor inclination)
What each review found
Current versions onlyNo studies found 0 · 0%GRADE not reported 2 · 100%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%
| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Frankel's function regulator-4 (FR-4) with lip-seal training vs No treatment Position of the incisors (upper incisor inclination) · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of… · End of treatment (about 2 years) Orthodontic and orthopaedic treatment for anterior open bite in children (2014) · Cochrane All outcomes | The angulation of the upper incisors with the palatal plane (1/ANSPNS) decreased on average 0.3 (SD 4.6) degrees in the control group, whereas in the treated group the mean retrusion was 4 (SD 4.6) degrees, P < 0.01.… | 1 study | GRADE not reported |
Frankel's function regulator-4 (FR-4) with lip-seal training vs No treatment Position of the incisors (upper incisor inclination) · Children and adolescents (over 80% aged 16 years or younger at treatment start) with anterior open bite (lack of… · End of treatment (about 2 years) Orthodontic and orthopaedic treatment for anterior open bite in children (2007) · Cochrane All outcomesearlier version CD005515.PUB2, superseded | The angulation of the upper incisors with the palatal plane (1/ANSPNS) decreased on average 0.3 (SD 4.6) degrees in the control group, whereas in the treated group the mean retrusion was 4 (SD 4.6) degrees, P < 0.01.… | 1 study | GRADE not reported |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Orthodontic and orthopaedic treatment for anterior open bite in children 2014 · Cochrane All outcomes | 2014-02 | 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.