Effect of Twin Block Appliance With and Without Lip Bumper on Jaw Growth and Facial Changes in Children with Class II Malocclusion

Comparative Evaluation of Skeletal, Dentoalveolar and Soft tissue Changes in Skeletal Class II Growing Children Treated using Twin Block with and without Lip Bumper: A Randomized Controlled Trial - NIL

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2026/04/108189

Enrollment

Registered

2026-04-12

Start date

Unknown

Completion date

Unknown

Last updated

2026-04-27

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

Conditions

None listed

Interventions

Intervention1: Skeletal Class II growing children treated using twin block with lip bumper.: An informed consent will be taken from all patient s parents / legal guardians, who agree to take part in s

Eligibility

Inclusion criteria

Inclusion criteria: Clinically: 1. Skeletal class II growing children with mandibular retrognathia (age group-10 to 14 years) 2. Children with hyper mentalis activity with lip trap 3. No previous history of any orthodontic treatment. 4. Each subject with a full cusp class II or end-on molar relationship bilaterally with convex facial profile. The overjet should be more than 5 mm. Positive visual treatment objective (VTO) Radiographically: ANB angle more than 4 degrees with average to horizontal growth pattern. Subjects who are at accelerated phase of pubertal growth spurt (CVMI stage-3), MP3-FG and MP3- G stage.

Exclusion criteria

Exclusion criteria: 1. Syndromic cases. 2. Children with following disorders- A) Disorders of Bone metabolism. B) Hepatobiliary disorders. C) Systemic Inflammatory diseases. 3. Children with compromised oral hygiene. Patients with mouth breathing habit.

Design outcomes

Primary

Measure	Time frame
To evaluate and compare Skeletal, Dentoalveolar and Soft tissue Changes in Skeletal Class II Growing Children Treated using Twin Block with and without Lip Bumper.Timepoint: Before giving twin block Pre-treatment records 12 months after giving twin block Post treatment records after achieving class I molar relationship	—

Secondary

Measure	Time frame
1. Evaluation & comparison of Skeletal changes using twin block with & without lip bumper. 2. Evaluation & comparison of Dentoalveolar changes using twin block with & without lip bumper. 3. Evaluation & comparison of Soft tissue changes using twin block with & without lip bumper. Evaluation of mentalis muscle activity using EMG after giving twin block with & without lip bumper.Timepoint: Before giving Twin Block Pre-treatment records. 12 months after giving twin block Post treatment records after achieving class I molar relationship	—

Measure

Time frame

1. Evaluation & comparison of Skeletal changes using twin block with & without lip bumper. 2. Evaluation & comparison of Dentoalveolar changes using twin block with & without lip bumper. 3. Evaluation & comparison of Soft tissue changes using twin block with & without lip bumper. Evaluation of mentalis muscle activity using EMG after giving twin block with & without lip bumper.Timepoint: Before giving Twin Block Pre-treatment records. 12 months after giving twin block Post treatment records after achieving class I molar relationship

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Countries

India

Contacts

Public ContactDr Jyoti Manchanda

Government Dental College and Hospital, Nagpur

drjyotimadaan@yahoo.com9423188175

Outcome results