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Tooth-Borne Versus Tooth-Bone-Borne Rapid Maxillary Expanders: A Stereophotogrammetric Evaluation of Soft Tissues

NCT04828213 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 32

Last updated 2021-04-01

No results posted yet for this study

Summary

The force exerted by the rapid maxillary expansion (RME) appliances provides expansion of the transverse dimension by splitting of the midpalatal suture. This expansion results in three-dimensional (3D) changes in maxillary position which also effects circummaxillary surrounding structures. The aim of this randomized clinical trial (RCT) was to evaluate the effects of tooth-borne and tooth-bone-borne rapid maxillary expansion (RME) on soft tissue with stereophotogrammetry.

Conditions

  • Posterior Crossbite

Interventions

DEVICE

Rapid Maxillary Expansion Treatment with Tooth-borne RME appliance (Hyrax)

The patients were treated with a expansion appliance containing a Hyrax expansion screw positioned parallel to the second premolars and were used to correct the posterior crossbite. RME activation was performed twice a day for the first week and then once per day. When it was decided that the expansion was sufficient (until the palatal tubercles of the upper molars came into contact with the buccal tubercles of the lower molars), the screw was fixed with the 0.012-inch ligature wire (American Orthodontics) and the appliance was kept in the mouth without being activated for 3 months.

DEVICE

Rapid Maxillary Expansion Treatment with Hybrid hyrax RME appliance

The patients were treated with a Hybrid hyrax RME appliance containing a Hyrax expansion screw positioned parallel to the second premolars and mini-screws. RME activation was performed twice a day for the first week and then once per day. When it was decided that the expansion was sufficient (until the palatal tubercles of the upper molars came into contact with the buccal tubercles of the lower molars), the screw was fixed with the 0.012-inch ligature wire (American Orthodontics) and the appliance was kept in the mouth without being activated for 3 months.

Sponsors & Collaborators

  • Gökçenur Gökçe

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
12 Years
Max Age
14 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2016-05-20
Primary Completion
2017-02-14
Completion
2017-07-17

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04828213 on ClinicalTrials.gov