NCT03172442

Treatment of Skeletal Class III Malocclusion Using Orthodontic Removable Traction Appliance

Dentoskeletal Effects of The Orthodontic Removable Traction Appliance in The Treatment of Skeletal Class III Malocclusion: A Randomized Controlled Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 22 (actual)
• Sponsor: Damascus University · Academic / Other
• Sex: All
• Age: 8 Years – 10 Years
• Healthy volunteers: Not accepted

Summary

This experimental study aims to evaluate the efficiency of the orthodontic removable traction appliance in the treatment of skeletal class III malocclusion. The study sample will consist of 44 patients with skeletal class III malocclusion. The sample will be allocated randomly into two groups: experimental group and control group. The dentoskeletal changes will be assessed by using lateral cephalometric radiographs before treatment and after obtaining 3mm positive overjet.

Detailed description

Treatment of class III malocclusion is a major challenge in orthodontic contemporary practice, Several appliance have suggested for the treatment of class III malocclusion, such as the facial mask and chin cup. Despite of the efficiency of this extraoral appliance, its external appearance and its big size reduce patients' cooperation which decrease its clinical effects. Another Class III treatment modality is the Orthodontic Removable Traction Appliance (ORTA). It is a removable appliance that can be used in conjunction with rapid palatal expansion or fixed appliances, It was developed in the 1980's by Dr. David Musich who developed this appliance in order to overcome issues of compliance that Dr. Musich experienced with use of the protraction facemask. There is only one study that evaluated this appliance which is a retrospective study compared the treatment effects of the ORTA and protraction facemask in treatment of Class III malocclusions. However, this study has a lot of limitations which made it difficult to accurately evaluate the efficiency of this device. The aim of this study is studying the dentoskeletal changes that result from treatment by this device, by comparing them to the changes in matched untreated group,by studying the cephalometric x-rays.

Conditions

• Class III Malocclusion

Interventions

Type	Name	Description
DEVICE	Vacuum plate	Vacuum plate with two hooks between lateral incisor and canine in each side will be applied on the lower arch.
DEVICE	Rapid maxillary expander	Rapid maxillary expander will be applied in the maxilla to disarticulate maxillary sutures to allow more efficient forward protraction of the maxilla.
DEVICE	Class III elastics	Class III elastic traction from upper first molar to the hook in both side will be applied.

Timeline

• Start date: 2017-05-01
• Primary completion: 2017-12-15
• Completion: 2019-02-15
• First posted: 2017-06-01
• Last updated: 2019-07-18

Locations

1 site across 1 country: Syria