Comparison of effects of two different designs of functional removable appliances on mandibular anterior teeth inclination in growing patients with underdeveloped mandible.

Comparison of effects of twin-block with acrylic capping and twin-block with McNamaras modification on mandibular incisor inclination in growing patients with mandibular retrognathism - NIL

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2024/01/061794

Enrollment

Registered

2024-01-24

Start date

Unknown

Completion date

Unknown

Last updated

2024-03-04

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: Twin Block with acrylic capping appliance.: Appliance will be fabricated in two parts(Maxillary and Mandibular parts).Maxillary appliance will incorporate a bite-block, a midline expans

Eligibility

Inclusion criteria

Inclusion criteria: 1)Age range of 9 to 14 years irrespective of gender. 2)Patients in CVMI stage CS3 and CS4. 3)Class II division 1 malocclusion cases with crowding 4)Overjet more than 5mm and less than 10mm. 5)Molar relationship at least a half unit Angle Class II. 6)Average facial growth pattern with FMA not exceeding 28°. 7)Patients with mandibular retrognathism and positive VTO. 8)Patients with no previous orthodontic treatment. 9)Patients with healthy periodontium with no gingival inflammation. 10)Patients without significant medical history. 8 11)Patients with positive informed consent.

Exclusion criteria

Exclusion criteria: 1) Patient with vertical growth pattern. 2) Patients having Bolton’s discrepancy. 3) Patients with poor compliance. 4) Patients with TMD problems. 4) Patients with poor oral hygiene. 5) Patients with dentofacial deformities and/or syndromes. 6) Patients requiring pre-functional orthodontic treatment.

Design outcomes

Primary

Measure	Time frame
To quantitatively evaluate the amount of mandibular incisor inclination in patients treated with Twin Block with acrylic capping and Twin Block with McNamara’s modification appliance.Timepoint: 1 weeks & 52 weeks	—

Secondary

Measure	Time frame
• To quantitatively evaluate & compare alveolar bone height & thickness on labial & lingual side of the mandibular incisors in patient treated by Twin Block with acrylic capping & Twin Block with McNamara’s modification appliance.Timepoint: 1 weeks & 52 weeks	—

Countries

India

Contacts

Public ContactDr Suvin Chaudhary

AIIMS

vilassamrit@live.in9899503560

Outcome results

None listed

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