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Comparison of Distalization and Functional Appliance Therapy

NCT03252782 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2019-02-20

No results posted yet for this study

Summary

The correction of Class II malocclusion is one of the most common problems facing the orthodontist, with an estimated one-third of all orthodontic patients treated for this condition. Many strategies are available for Class II treatment on growing patients, and most orthodontists tend to choose a treatment protocol based on what part of the craniofacial deformity they believe the appliance will affect the most. A number of authors have described the dentoalveolar and skeletal changes induced by the Herbst appliance. The dentoalveolar effects consist of distalization of the maxillary molars and forward movement of the mandibular dentition. The main skeletal change "mandibular stimulation" is acceleration of a patient's inherent mandibular growth rather than increased growth beyond what would occur without treatment. Maxillary molar distalization, is one of the Class II treatment. Mini-implants have become popular in recent years, and various kinds of mini-implant-borne distalization approaches have been described. Because Class II correction appears to be achievable with either appliance, a follow-up question is whether there is a difference in the esthetic outcomes. However, because of the complexity of the human face and the subjectivity of facial beauty, a simple set of measures of lines or angles cannot quantify facial beauty. With the advances in 3-dimensional imaging, it is now possible to capture and superimpose digital images and measure the changes in the soft tissues from 3-dimensional images. Such advances in facial imaging allow a more thorough investigation of changes in 3 dimensions and prevent the inherent loss of information that results from 2-dimensional imaging. Optical scanners with short shutter speeds are convenient for clinicians and patients for capturing soft-tissue records. Bearing in mind that the aim of orthodontic treatment is to achieve facial harmony along with excellent occlusion, one of the most important objectives of an orthodontist should be the improvement of facial appearance. Therefore, it is important to gain a better understanding of how or whether orthodontic procedures affect the appearance of the soft tissues. Thus, the aim of this clinical trial is three dimensional evaluation of soft tissue facial changes on late mixed dentition patients following maxillary arch distalization with palatal screws one group and acrylic split herbst patients on other group and to compare these changes.

Conditions

  • Mandibular Retrognathism

Interventions

DEVICE

Herbst Appliance

Acrylic Splint Herbst Appliance

DEVICE

Distal Jet Appliance

Anterior Median Palate Implant Borne Distal Jet Appliance

Sponsors & Collaborators

  • Izmir Katip Celebi University

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2016-08-01
Primary Completion
2018-03-30
Completion
2018-06-01

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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 NCT03252782 on ClinicalTrials.gov