An interventional study of the mandible first and the maxilla first in Class III Malocclusion, sponsored by Cairo University. Completed at 1 site in Egypt. Open to participants aged 16 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-10-20.
Sponsored by Cairo University · Not applicable, Interventional, and Treatment
The investigator will assess the inverted sequence approach in the treatment of class III patient undergoing bimaxillary orthognathic surgery
The investigator will compare the maxillary stability in class III orthognathic patients undergoing bimaxillary surgery by two surgical approaches ; the mandible-first (intervention) and the maxilla-first (control)
57 studies on the registry are indexed under Malocclusion, Angle Class III; 11 are open to participants now.
This study's enrollment of 24 is below the median of 32 across 53 interventional studies indexed under Malocclusion, Angle Class III.
Browse Malocclusion, Angle Class III studies →Cairo University is the lead sponsor of 4,941 studies on the registry; 1,458 are open to participants now.
Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
the maxillary osteotomy is going to be done and fixed first
Procedure: the maxilla first
the mandibular osteotomy is going to be done and fixed first
Procedure: the mandible first
the mandible osteotomy is going to be done and fixed first
Also known as: the inverted sequence
the maxilla osteotomy is going to be done and fixed first
Also known as: the regular sequence
the change in maxilla stability
to assess the change in maxillary stability on cone beam CT obtained immediately and 6 month postoperative. the measuring unit is millimeter
Time frame: 6 months
Patient satisfaction
"the quality of life questionnaire" describes the patient's satisfaction during the entire treatment period which is done through a questionnaire answered by the patient through a score between 0-10 the measuring unit is numerical
Time frame: 6 month
PDFs hosted by the registry, ClinicalTrials.gov.
Plan to share: No — after the completion of my research i will publish the data in an international journal
Ran from Jan 2018 to primary completion in Jan 2019, 12 months.
Of 37 non-industry interventional studies with no phase under Malocclusion, Angle Class III, half reached primary completion within 13 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 26. This study's 12 months is close to that.
Counting every sponsor, half of 38 studies reached it within 13 months; a quarter within 10 and three quarters within 26.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Oct 2022. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Malocclusion, Angle Class III →