Immediate Skeletal and Dento-alveolar Effects of Two and Four Mini-screw Supported Hyrax for Maxillary Expansion in Non-growing Patients

Not Applicable

Completed

• Conditions: Transverse Maxillary Deficiency; Posterior Crossbite, Upper Airway

• Registration Number: NCT06851728
• Lead Sponsor: Cairo University

Brief Summary

transverse malocclusion is very common in adult ,using conventional hyrax expander has many limitations and side effects, therefore ,recently A minis crews assisted rapid expansion is recently introduced to overcome hence complications

Detailed Description

transverse malocclusion is very common in adult ,using conventional hyrax expander has many limitations and side effects such as buccal tipping, marginal bone loss, dento aloveolar expansion.

in such cases , surgically assisted rapid palatal expansion used to be the option of choice ,due to the invasiveness of the procedure and co-morbidity associated with it ,minis crews assisted rapid expansion is recently introduced to overcome the complications of both convectional and surgically assisted rapid palatal expansion

Study Timeline

• Study Start: 2023-02-02
• Primary Completion: 2023-08-02
• Study Completion: 2024-12-04
• Status Verified: 2025-02
• Study First Submitted: 2025-02-12
• Study First Submitted QC: 2025-02-27
• Last Update Submitted: 2025-02-27
• Study First Posted: 2025-02-28
• Last Update Posted: 2025-02-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

• adults male or female aged from 18-30 years with skeletal Maxillary constriction
• unilateral or bilateral Dental posterior cross-bite
• mid-palatal suture maturation (Grade C, D) according to F Angileri classification
• good oral hygiene

Exclusion Criteria

• no functional crossbite due to premature contacts
• no previous orthodontic treatment
• no buccal crossbite
• no craniofacial anomalies or syndromes.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Skeletal effects	the outcome will be assessed immediate post expansion (one month-tow month)	To compare the amount of skeletal expansion using linear (mm)measurement extracted from cone beam computed tomography pre and post-expansion

Secondary Outcome Measures

Name	Time	Method
Dento-alveolar effects	1-2 months	To compare the amount of Dento-alveolar expansion using angular(degree) measurement extracted from cone beam computed tomography pre and post-expansion

Trial Locations

Locations (1)

11,ElSaraya street ,Almanyal ,CAIRO ,EGYPT; 🇪🇬 Cairo, Egypt