Maxillary Versus Bi-Maxillary Posterior Segments Intrusion Adult Subjects With Skeletal Open Bite

Not Applicable

Completed

• Conditions: Dental Malocclusion
• Interventions: Procedure: Maxillary posterior dento-alveolar intrusion

• Registration Number: NCT04713280
• Lead Sponsor: Cairo University

Brief Summary

Compare between bi-maxillary (maxillary and mandibular) posterior dento-alveolar intrusion and maxillary posterior dento-alveolar intrusion as regards open bite closure.

Detailed Description

Now, maxillary posterior dento-alveolar intrusion has been validated as a conservative treatment modality for treatment of skeletal open bite in adult patients. However, it was proved that mandibular posterior teeth extrusion take place during the treatment which results in reduction in the amount of open. bite closure. Therefore, the aim of our study is to compare in a randomized clinical trial methodology between maxillary posterior dento-alveolar intrusion and combined maxillary and mandibular posterior dento-alveolar intrusion in terms of anterior open bite closure.

Study Timeline

• Study Start: 2020-09-17
• Study First Submitted: 2021-01-14
• Study First Submitted QC: 2021-01-14
• Study First Posted: 2021-01-19
• Primary Completion: 2021-09-30
• Study Completion: 2021-12-01
• Status Verified: 2024-02
• Last Update Submitted: 2024-02-06
• Last Update Posted: 2024-02-07

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

• Skeletal open bite with a dental open bite ranging from 3-8 mm.
• Adequate incisal show at rest and on smiling
• Full set of posterior teeth from first premolar to second molar (with the exception of one tooth in one quadrant).

Exclusion Criteria

• Dental open bites without skeletal components
• Previous orthodontic treatment
• Medically compromised patients

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Bi-maxillary posterior dento-alveolar intrusion	Maxillary posterior dento-alveolar intrusion	Mini-screw supported bi-maxillary posterior dento-alveolar intrusion
Maxillary posterior dento-alveolar intrusion	Maxillary posterior dento-alveolar intrusion	Mini-screw supported maxillary posterior dento-alveolar intrusion

Primary Outcome Measures

Name	Time	Method
Anterior open bite closure	6 months	The amount of overbite gained as a result of posterior dento-alveolar intrusion

Secondary Outcome Measures

Name	Time	Method
Maxillary posterior teeth intrusion radiographically in millimeters.	6 months	The distance travelled by maxillary premolars and molars of the right and left sides to a reference plane
Mandibular posterior teeth intrusion radiographically in millimeters.	6 months	The distance travelled by mandibular premolars and molars of the right and left sides to a reference plane
Tip and torque of intruded teeth radiographically in degrees.	6 months	• Torque change is measured as the change in the angle between the long axis of the intruded teeth and the FH plane (for tip) mid-sagittal plane (for torque).

Trial Locations

Locations (1)

Orthodontic Department, Faculty of Dentistry, Cairo University; 🇪🇬 Cairo, Egypt