Effects of Skeletal Anchored Maxillary Expander for Constricted Maxilla

Not Applicable

Not yet recruiting

• Conditions: Maxillary Expansion

• Registration Number: NCT07036822
• Lead Sponsor: Samar Hassan Mahmoud Mohamed

Brief Summary

The aim of study will be Evaluation of Effects of skeletal anchored maxillary expander for constricted maxilla with different patient's age

Detailed Description

Various factors contribute to transverse deficiencies in the dental arch, which can present in several ways, including posterior crossbite, a collapsed maxillary arch, discrepancies in transverse dental arch, and cleft palate. Several devices and orthopedic approaches have been developed to address transverse maxillary constriction, which can be either surgical or non-surgical, and these devices may be either fixed or removable. Various types of anchorage can be utilized, such as tooth-borne anchorage with a hyrax or tooth-tissue-borne and bone-borne methods like mini-implant-assisted rapid palatal expander (MARPE). Rapid maxillary expansion (RME) is a frequently employed and dependable technique to rectify transverse maxillary deficiencies in prepubertal and adolescent individuals. RPE successfully treats both unilateral and bilateral buccal crossbites by expanding the maxilla by separating the midpalate suture. It works especially well for developing individuals with mixed dentition, but in older teenagers, it might cause side effects such buccal tilting of teeth and periodontal issues In post pubertal individuals (including young adults and adults), the use of rapid maxillary expansion (RME) techniques remains debated, as the median palatal suture is frequently matured and challenging to open clinically. As a result, these methods might lead to negative side effects, such as dentoalveolar compensation and adverse dental and periodontal outcomes in the affected teeth instead of genuine skeletal expansion.

Mini implant-assisted rapid maxillary expansion aims to achieve skeletal expansion of the palatal arch while minimizing the unwanted dental complications The Mini screw-assisted rapid palatal expansion, designed by Lee et al., functions as a tooth-bone-borne RPE-Hyrax device that is anchored in the palate with four Mini screws connected through helical loops that were soldered to the base of the expansion screw. These tiny screws were essential in allowing the midpalatal sutures to separate by applying the expansion force straight to the palate. MARPE is employed in both adolescents and adults as an alternative to surgically assisted rapid palatal expansion (SARPE). CBCT images showed an increase in skeletal dimensions in adult and adolescent patients treated with MARPE and a reduction in dental side effects. In recent years, Mini screw-assisted rapid palatal expansion (MARPE) has emerged as a highly effective method for achieving skeletal expansion of the maxilla in adolescents and adults, especially in cases where traditional rapid palatal expansion (RPE) may be limited due to increased suture interdigitation with age. MARPE enables orthopedic expansion without the need for surgical assistance in many cases The accuracy, adaptability, and efficiency of MARPE devices have significantly increased with the incorporation of 3D printing technology. Cone-beam computed tomography (CBCT) data and digital intraoral scans are used to construct 3D-printed MARPE appliances, enabling patient-specific designs that maximize comfort, fit, and biomechanical efficacy. Mini screw placement accuracy, better appliance adaptation to palate anatomy, and less chairside time are all made possible by the digital workflow.

The present trend in orthodontics toward individualized and technologically advanced treatment options is best illustrated by the combination of MARPE and 3D printing. By providing a more pleasant and effective treatment mode, this innovation not only improves clinical outcomes but also the patient experiences

.

Study Timeline

• Status Verified: 2025-06
• Study First Submitted: 2025-06-17
• Study First Submitted QC: 2025-06-17
• Last Update Submitted: 2025-06-24
• Study First Posted: 2025-06-25
• Last Update Posted: 2025-06-27
• Study Start: 2025-09-01
• Primary Completion: 2026-12-01
• Study Completion: 2027-12-01

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 24

Inclusion Criteria

• Skeletal maxillary transverse deficiency.
• Unilateral or bilateral posterior crossbite. .Patient maintains good oral hygiene and overall health.
• Patient with no previous orthodontic treatment.
• No systemic disease that may affect bone quality or interfere with orthodontic treatment.
• Adolescent and adult patien

Exclusion Criteria

• Craniofacial congenital disorders, including cleft lip and palate.
• History of periodontal disease

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Skeletal and dental changes after skeletal anchored maxillary expander for constricted maxilla in adolescent and adult patients constricted maxilla in adolescent and adult patients	from baseline (T0) to post expansion (T1)approximately 3 months	changes in maxillary skeletal and dental arch width assessed by CBCT imaging before and after MARPE treatment.. evaluation includes skeletal expansion and transverse dental arch changes