Changes in Arch Parameters After Molar Distalization; Hybrid Hyrax Distalizer Versus Pendulum

Mohamed Abdelrhman Shendy Abdelrhman

Status: Invitation-only

Conditions: Angle Class 2 Malocclusion

Treatments: Device: Pendulum distalizer; Device: Hybrid hyrax distalizer

Study type: Interventional

Funder types: Other

Identifiers

NCT05470179

824/220

Details and patient eligibility

About

this study was to compare the changes in arch parameters after molar distalization; hybrid hyrax distalizer versus Pendulum distalizer using CBCT.

Full description

Evaluation of maxillary molar amount of distal movement and the amount of anchorage loss Arch length, arch width, arch depth

Enrollment: 30 estimated patients

Sex: All

Ages: 13 to 17 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• For group 1(Hybrid hyrax distalizer) Patients suffering maxillary collapse with a skeletal background with unilateral or bilateral posterior crossbite.
• For group 2 (Pendulum distalizer) Patients with skeletal class I or class II malocclusion who needed upper first and second molar distalization for incisor retraction or relieving of the upper arch crowding and minimum or no crowding in lower jaw were selected.
• All Patients had no systemic diseases that may affect bone quality or interfere with orthodontic treatment, periodontal disease and no previous orthodontic treatment.
• Age range was 13 to 17 years.

Exclusion criteria

• Missed upper first molar.
• un-cooperative patient

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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30 participants in 2 patient groups

Hybrid hyrax distalizer

Active Comparator group

Description:

Inverted hyrax with 2 miniscrews for 6 months for maxillary molar distal movement in class II angle malocclusion

Treatment:

Device: Pendulum distalizer

Device: Hybrid hyrax distalizer

Pendulum distalizer device

Active Comparator group

Description:

Modified pendulum with miniscrews for 6 months for maxillary molar distal movement in class II angle malocclusion

Treatment:

Device: Pendulum distalizer

Device: Hybrid hyrax distalizer