Evaluation of Modified Hyrax Versus Quad Helix in Treatment of Posterior Cross Bite

Not Applicable

Recruiting

• Conditions: Posterior Cross Bite
• Interventions: Device: modified hyrax; Device: quad helix

• Registration Number: NCT06300775
• Lead Sponsor: Cairo University

Brief Summary

This study will be performed to evaluate the treatment of posterior cross-bite with modified hyrax \& Quad helix appliances and to compare which one will provide better results in relation to chewing difficulty in children with posterior cross- bite in mixed dentition

Detailed Description

This study will be performed to evaluate the treatment of posterior cross-bite with modified hyrax \& Quad helix appliances and to compare which one will provide better results in relation to chewing difficulty as a primary outcome of this study and also evaluate the increase in the inter maxillary width , sleep apnea and signs \& symptoms of tempro-mandibular joints disorder in children with posterior cross- bite in mixed dentition Cases will be examined within a regular interval up to one year

Study Timeline

• Study First Submitted: 2023-10-27
• Status Verified: 2024-03
• Study First Submitted QC: 2024-03-07
• Last Update Submitted: 2024-03-07
• Study First Posted: 2024-03-08
• Last Update Posted: 2024-03-08
• Study Start: 2024-06-01
• Primary Completion: 2025-05-01
• Study Completion: 2025-06-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 10

Inclusion Criteria

• Children with posterior cross-bite in mixed dentition stage.
• Children with normal and mild growth pattern.
• Children with completely erupted upper first molars.

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Exclusion Criteria

• Children with advanced periodontal diseases.
• Children having general diseases, syndromes.
• Children with previous orthodontic.
• Children with severe horizontal growth patterns.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Modified Hyrax	modified hyrax	Appliance used for rapid maxillary expansion
Quad Helix	quad helix	Appliance used for slow maxillary expansion

Primary Outcome Measures

Name	Time	Method
Chewing difficulty	one year	the outcome will be measured by visual analogue scale

Trial Locations

Locations (1)

Cairo univeristry; 🇪🇬 Cairo, Egypt