To compare the effectiveness of two type of appliances in bringing the lower jaw forward.

To compare and evaluate the therapeutic effects of fixed twin-block appliance vs fixed functional appliance in skeletal Class II malocclusion.

Status

Recruiting

Phases

Phase 1

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2020/04/024611

Enrollment

Registered

2020-04-14

Start date

Unknown

Completion date

Unknown

Last updated

2021-11-24

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

Conditions

Health Condition 1: K089- Disorder of teeth and supporting structures, unspecified

Interventions

Intervention1: Fixed twin block: Fixed Twin block will be inserted in the oral cavity once for a duration of 8 months with regular follow ups. Control Intervention1: AdvanSync fixed functional applian

Eligibility

Inclusion criteria

Inclusion criteria: Skeletal and dental Class II malocclusion due to retrognathic mandible Normal to low-angled growth pattern Minimum crowding in the lower dental arch

Exclusion criteria

Exclusion criteria: Presence of active periodontal or gingival disease Those with extracted or congenitally missing permanent teeth Mentally challenged patients Subjects with any known systemic disease Subject with vertical growth pattern

Design outcomes

Primary

Measure	Time frame
To compare and evaluate the therapeutic effects of fixed twin block appliance vs fixed functional appliance in skeletal Class 2 malocclusionTimepoint: 8 months starting from 20/2/2020	—

Secondary

Measure	Time frame
Evaluation of the patient comfort with the fixed twin block applianceTimepoint: 3 months	—

Countries

India

Contacts

Public ContactIshita Dubey

Subharti Dental College

dr_amitkhera@rediffmail.com8057143083

Outcome results

None listed

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