UnknownNot Applicable

Friction Versus Frictionless Mechanics During Maxillary En-masse Retraction in Adult Patients

30 participantsStarted 2017-11

Plain-language summary

This study is a Randomized clinical trial comparing the effectiveness of two different mechanics during maxillary en-masse retraction in adult patients. Patients will be randomly divided into two groups:Friction and frictionless mechanics. Mini screws will be used in both group to ensure maximum anchorage during retraction. Lateral cephalometric radiographs and dental models will be taken for each patients pre and post -retraction. Following complete anterior segment retraction, the rate and duration of retraction will be evaluated for both groups as well as patient satisfaction with treatment. Changes in incisors inclination and soft tissue as well as anchorage loss will be also assessed.

Who can participate

Age range

18 Years – 30 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

. Male or female adult patients with age range 18-30 yrs old.
. Class I bimaxillary dentoalveolar protrusion .
. Full permanent dentition.
. Good oral hygiene.
. Maximum anchorage is required.
. Healthy bone between first molars and second premolars is needed.

Exclusion criteria

. Systemic disease.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Duration of retraction

Timeframe: After complete retraction, average 9 months

Rate of retraction

Timeframe: Average 9 months, recorded from the begin of retraction till the complete retraction of anterior teeth

Patient Satisfaction

Timeframe: After complete retraction , average 9 months

Trial details

NCT IDNCT03261024

SponsorCairo University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2019-01

Contact for this trial

Fady H. Fahim, Lecturer

+20-01006882595 fady.fahim@gmail.com

View on ClinicalTrials.gov More En-masse Retraction , Class I Bimaxillary Protrusion trials