Comparing four removable orthodontic devices and no orthodontic treatment in children with excessive overjet

Dento-skeletal effects of removable functional appliances in class II growing patients: a randomized controlled trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN12775595

Enrollment

Registered

2020-04-30

Start date

2020-07-06

Completion date

Unknown

Last updated

2023-07-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malocclusion Oral Health

Interventions

Current interventions as of 19/01/2023: In this randomized controlled trial, the sample will be composed of 4 arms: no treatment (patients that autonomously choose to delay the treatment), and 3 rando

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Divergence between cranial base and mandibular plane within normal limits (SN^GoGn <37°) 2. Moderate crowding in the upper arch (=4 mm) 3. Good patient compliance (18-22 h per day) 4. Excellent radiographic record quality, with adequate cephalometric point display and head rotation control 5. Aged 8-17 years

Exclusion criteria

Exclusion criteria: 1. Severe transverse dental or skeletal discrepancies 2. Severe vertical dental or skeletal discrepancies 3. Extraction treatments 4. Temporomandibular disorders (TMDs) 5. Periodontal disease

Design outcomes

Primary

Measure	Time frame
1. SN^GoGn 2. SpP^GoGn 3. SNA 4. SNB 5. ANB 6. A Downs 7. B Downs 8. A:Po 9. Wits Index 10. ArGo^Gn 11. Go:Co 12. Gn:Co 13. Gn:Go 14. 11^SpP 15. 41^GoGn 16. 11^41 All parameters will be calculated by analysing lateral radiographs taken before treatment and at the end of treatment.	—

Secondary

Measure	Time frame
Puberty stage of participant	—

Countries

Italy

Contacts

Public ContactSerena Ravera

serenaravera@unito.it+39 0116331547

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026