Comparison of effects of Pre-orthodontic Trainer and Twin Block appliance in growing patients with a backwardly placed lower jaw

Clinical and cephalometric comparison of Pre-orthodontic Trainer and Twin Block appliance in growing patients with a retropositioned mandible in skeletal Class II malocclusion: A randomised clinical trail - NIL

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2023/10/059238

Enrollment

Registered

2023-10-27

Start date

Unknown

Completion date

Unknown

Last updated

2023-11-13

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

Conditions

Health Condition 1: K088- Other specified disorders of teethand supporting structures

Interventions

Intervention1: Pre-Orthodontic Trainer: Pre-Orthodontic Trainer is prescribed for correction of skeletal Class II correction Control Intervention1: Twin Block Appliance: Twin Block appliance is usuall

Eligibility

Inclusion criteria

Inclusion criteria: 1)Skeletal Class II patients with mandibular retroposition 2)Overjet more than 4mm 3)Angle ANB more than 4 degree 4)Growing patients (CVMI 1-4) 5)Patients whose parents/guardians willing to give written and informed consent to this study 6)Patients with no previous orthodontic treatment

Exclusion criteria

Exclusion criteria: 1)Skeletal Class I malocclusion 2)Skeletal Class III malocclusion 3)Patients whose skeletal growth has completed 4)Patients with missing teeth 5)Patients with bone metabolic disorders 6)Patients with congenital deformity of orofacial structures or any craniofacial syndromes 7)Patients with chronic ulcers in oral cavity 8)Patients not showing compliance with the treatment

Design outcomes

Primary

Measure	Time frame
Both the pre-orthodontic trainer and the twin block appliance will cause forward positioning of the mandible correcting the skeletal Class II malocclusion.Timepoint: The patients will be assessed after 12 months to compare the efficiency of the pre-orthodontic trainer and the twin block appliance.	—

Secondary

Measure	Time frame
Both the pre-orthodontic trainer and the twin block appliance will improve the soft tissue profile of the patientTimepoint: 12 months	—

Countries

India

Contacts

Public ContactDr Ravindra Manerikar

Rural Dental College, Loni

docravi.m@gmail.com9764831633

Outcome results

None listed

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