Effects of Orthopedic Mandibular Advancement in Class II Division 1 Malocclusion on Pharyngeal Airway

Mansoura University

Status: Completed

Conditions: Mandibular Retrognathism; ClassII Division 1 Malocclusion

Treatments: Device: Fixed orthodontic appliance; Device: Twin Block

Study type: Interventional

Funder types: Other

Identifiers

NCT04255511

A09061119

Details and patient eligibility

About

This study aims at evaluating the effects of mandibular advancement on pharyngeal airway space and nocturnal breathing in children with skeletal class II division1 malocclusion. Fifty patients will be enrolled in the study divided into control and experimental groups.

Full description

The purpose of the present research is not only evaluate the effect of functional appliance on the pharyngeal airway space, but also evaluate its effect on nocturnal breathing of children with skeletal class II.

Enrollment: 50 patients

Sex: All

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Skeletal class II division 1 malocclusion due to mandibular retrognathism.
2. Cephalometric angular measurements: SNA ≥ 82, SNB ≤ 78, ANB ≥ 4.
3. Overjet ≥ 6 mm.
4. Patient in circumpubertal stage CVM2 and CVM3.

Exclusion criteria

1. History of orthodontic treatment.
2. Presence of craniofacial anomalies or TMJ disorders.
3. Systemic problems that may affect craniofacial growth.
4. Abnormal oral habits.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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50 participants in 2 patient groups

Twin block

Experimental group

Description:

Removable Functional appliance

Treatment:

Device: Twin Block

Fixed appliance

Active Comparator group

Description:

Preadjusted fixed appliance

Treatment:

Device: Fixed orthodontic appliance