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Completed

NCT Number: NCT02901678

The Effect of Different Force Magnitudes on Maxillary Posterior Segment Intrusion

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

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Key information

Conditions

Orthodontics

Age range

15 year–25 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Faculty of Dentistry

Cairo, Egypt

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Intrusion by 400 g

Device

using miniscrews and coil springs to apply the intrusive force on maxillary posterior segment intrusion.

Primary outcomes

  1. Amount of intrusion

    Time frame: 6 months

    The amount the upper posterior teeth have been intruded.

  2. Rate of bite closure

    Time frame: 6 months

    The rate by which the open bite closes as a result of posterior segment intrusion

Secondary outcomes

  1. Average rate of intrusion

    Time frame: 6 months

    The amount of intrusion divided by the duration of intrusion

  2. Root resorption

    Time frame: 6 months

    The amount of root resorption as a result of the intrusive force

  3. Tipping

    Time frame: 6 months

    The amount of mesiodistal and buccolingual tipping of posterior teeth

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Official study 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

Important dates

Study start
2015
Primary completion
2018
Study completion
2018
First posted
Sep 15, 2016
Registry last updated
Aug 2, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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