Evaluation of the Effect of Three Types of Rapid Maxillary Expanders (Conventional, Hybrid and MSE)

Al-Azhar University

Status: Active, not recruiting

Conditions: Maxillary Retrusion; Nasal Airway Obstruction

Treatments: Device: MSE 2 bands and 4; Device: CH 4 band; Device: HH 2 bands

Study type: Interventional

Funder types: Other

Identifiers

NCT05446714

Ahmed (Other Identifier)

lecturer

775/220

Details and patient eligibility

About

Aim of the study: To compare radiographically the morphometric changes in the nasal airway after using three types of rapid maxillary expansion (RME) conventional hyrax (CH), hybrid hyrax (HH) and maxillary skeletal expander (MSE) using cone beam computed tomography (CBCT).

Full description

Abstract Aim of the study: To compare radiographically the morphometric changes in the nasal airway after using three types of rapid maxillary expansion (RME) conventional hyrax (CH), hybrid hyrax (HH) and maxillary skeletal expander (MSE) using cone beam computed tomography (CBCT).

Material and Methods: A total sample of thirty CBCT of patients presented with constricted maxilla with mean age of 14±3Y was randomized in to three groups. Group 1 CH, group 2 HH and group 3 MSE.

CBCT records were taken before(T1) and after six months (T2) of RME; the Airway was segmented and quantified using software (version 5.3.4.39USA).

Enrollment: 54 patients

Sex: All

Ages: 11 to 18 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients suffering maxillary collapse with a skeletal background
• Patients with unilateral or bilateral posterior crossbite.
• Patients with reduced or average anterior face height.
• Patients with no periodontal disease.
• Patients with good oral hygiene and general health.
• No systemic diseases that may affect bone quality or interfere with orthodontic treatment.
• Patients with erupted maxillary permanent first molars and premolars.
• Patients with no previous orthodontic treatment.

Exclusion criteria

• previous treatment
• syndromes
• cleft lip and palate

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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54 participants in 3 patient groups

conventional hyrax

Active Comparator group

Description:

CH 4 BANDS for expansion of maxilla and observation improvement of the air way

Treatment:

Device: CH 4 band

Hybrid hyrax

Active Comparator group

Description:

HH 2 BANDS for expansion of maxilla and observation improvement of the air way

Treatment:

Device: HH 2 bands

Maxillary skeletal expander

Active Comparator group

Description:

MSE 2 BANDS AND 4 for expansion of maxilla and observation improvement of the air way

Treatment:

Device: MSE 2 bands and 4