The Effect of Different Force Magnitudes on Maxillary Posterior Segment Intrusion

Orthodontics Clinical Trial

Official title:

The Effect of Two Different Force Magnitudes on Maxillary Posterior Segment Intrusion in Adult Patients With Skeletal Open Bite Using Temporary Anchorage Devices- A Randomized Clinical Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02901678
• Other study ID #: 121888
• Status: Completed
• Phase: N/A
• Start date: November 2015
• Est. completion date: April 2018

Study information

• Verified date: August 2018
• Source: Cairo University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

A Randomized clinical trial comparing two different force magnitudes in maxillary posterior segment intrusion in adult patients with skeletal open bite malocclusion

Description:

This randomized controlled trial is aiming to study the effect of the different force magnitude on maxillary posterior segment intrusion. Two groups are going to be allocated and the amount and rate of intrusion will be measured and compared.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 20
• Est. completion date: April 2018
• Est. primary completion date: April 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 15 Years to 25 Years

Eligibility

Inclusion Criteria:

• Adult patients with an age range from 17 to 25.

• Skeletal open bite.

• Dental open bite that is due to overgrowth of maxillary posterior segment as seen clinically and that can be corrected without surgical intervention (a minimum of 3 mm and a maximum of 8 mm).

• Skeletal class I or mild to moderate skeletal class II that enables camouflage treatment.

• Normal incisor show on smiling (that makes the case indicated for molar intrusion and not for incisor extrusion).

• Full set of maxillary posterior dentition (first and second premolars, first molars at least).

• No previous orthodontic treatment.

Exclusion Criteria:

• Medically compromised patients.

• Patients suffering from any congenital or hereditary diseases.

• Smoking or any systemic diseases.

• Chronic use of any medications including antibiotics, phenytoin, cyclosporin, anti-inflammatory drugs, systemic corticosteroids, and calcium channel blockers.

Related Conditions & MeSH terms

• Orthodontics

Intervention

Device:
• Intrusion by 400 g
using miniscrews and coil springs to apply the intrusive force on maxillary posterior segment intrusion.

Locations

Country	Name	City	State
Egypt	Faculty of Dentistry	Cairo

Sponsors (1)

Lead Sponsor	Collaborator
Cairo University

Country where clinical trial is conducted

Egypt, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Amount of intrusion	The amount the upper posterior teeth have been intruded.	6 months
Primary	Rate of bite closure	The rate by which the open bite closes as a result of posterior segment intrusion	6 months
Secondary	Average rate of intrusion	The amount of intrusion divided by the duration of intrusion	6 months
Secondary	Root resorption	The amount of root resorption as a result of the intrusive force	6 months
Secondary	Tipping	The amount of mesiodistal and buccolingual tipping of posterior teeth	6 months