Clinical Trials Logo

Clinical Trial Summary

The aim of the current study was to evaluate maxillary and mandibular arch widths' response to five different appliances and clinical protocols (Rapid maxillary expander RME, Leaf Expander 450g, Leaf Expander 900g, Self-expander 450g, Self-expander 900g) for the correction of the maxillary deficiency.


Clinical Trial Description

Maxillary expansion with fixed appliance is a well-known and consolidated practice in clinical orthodontics but current findings of "evidence-based dentistry" have not yet identified a better clinical expansion protocol. This issue is due both to the several expansion screws available on the market and to the different screw activation protocols, which could be grouped in rapid and slow, with several customizations. The comparison between slow and rapid expansion is a hotly debated topic in the literature and a recent systematic review have shown that both rapid and slow expansion protocols are clinically effective on the primary outcome (the resolution of the maxillary deficiency and crossbite with a significant increase of skeletal transversal maxillary dimension). Based on these results, the choice of appliance based on its ability to solve the maxillary constriction may not be any more the main selection criteria. The choice of the orthodontist should also be based on the timing and on a "patient-oriented" device, that minimizes the side effects, such as e.g. appliance breakages, functional impairments, and pain perception. The aim of the present study is to investigate and analyze five different maxillary expansion appliances to identify an effective and efficient clinical protocol for the maxillary expansion. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05135962
Study type Interventional
Source University of Genova
Contact Alessandro Ugolini, DDS, Phd
Phone +390103537309
Email alessandro.ugolini@unige.it
Status Not yet recruiting
Phase N/A
Start date December 1, 2021
Completion date November 1, 2023

See also
  Status Clinical Trial Phase
Completed NCT00519415 - Comparative Results of Maxillary Deficiency Treatment by Tongue Plate and Facemask in Growing Patients Phase 3
Completed NCT04637568 - Paranasal Sinus Volumes of Maxillary Deficiency Patients Requiring Le Fort Osteotomy
Recruiting NCT05089396 - Effects of Conventional Versus Skeletally Anchored Facemask in Treatment of the Prepubertal Skeletal Class III Patients N/A
Recruiting NCT06222970 - Maxillary Sinus Augmentation Via the "Bone Lid Technique"
Recruiting NCT00916084 - Comparative Results of Maxillary Deficiency Treatment by Fixed Tongue Appliance and Fixed Facemask in Growing Patients Phase 3
Recruiting NCT04863404 - Evaluation of the Treatment Effects of Tooth Borne Versus Bone-anchored Protraction Procedures in Class III Patients With Maxillary Deficiency N/A
Not yet recruiting NCT06446687 - Radiographic Assessment of Bone Gain Following Sinus Lifting With Simultaneous Implant Placement Using Crestal Approach With Membrane Control Technique for Bone Augmentation of Atrophied Maxillary Posterior Ridge N/A
Recruiting NCT06227351 - Completely Versus Partially Guided Zygomatic Implant N/A
Recruiting NCT06315348 - Effect on Periodontal Phenotype of Flapless Piezoincission During Orthodontic Treatment N/A