Maxillary Positioning in Orthognathic Surgery

June 25, 2026 updated by: Abanoub Sliem, Future University in Egypt

Accuracy of Maxillary Positioning Using Patient Specific Implant Versus Occlusal Splint in Orthognathic Surgery (A Randomized Clinical Trial)

Patient that need corrective Jaw Surgery went into Maxillary Positioning in one of two groups either Maxilla Fixed using occlusal waver or PSI

Study Overview

Status

Enrolling by invitation

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
      • Cairo, Egypt
        • Dental School

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inculsion Criteria

  • Adult patients with dentofacial deformities, including skeletal Class II deformity, skeletal Class III deformity, vertical maxillary excess, and facial asymmetry.
  • Patients seeking definitive surgical correction and declining orthodontic camouflage treatment.
  • Cases required maxillary impaction, advancement, or rotational movements.

Exclusion Criteria:

Medically compromised patients.

  • Uncooperative or noncompliant patients.
  • Patients with poor oral hygiene or active periodontal disease.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Control Group
Fixation with normal plates
Procedure: Maxillary Orthognathic Surgery
Maxillary Positioning using PSI or Occlusal Waver
Experimental: Interventional Group
Fixation with PSI
Procedure: Maxillary Orthognathic Surgery
Maxillary Positioning using PSI or Occlusal Waver

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Accuracy of Maxillary Positioning
Time Frame: 1 years
Superimposition of the preoperative plan and the postoperative result on the CT (Digital Measurement in the X, Y and Z axis in millimeters )
1 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Future University in Egypt

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 15, 2026

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

July 1, 2026

Study Registration Dates

First Submitted

June 19, 2026

First Submitted That Met QC Criteria

June 25, 2026

First Posted (Actual)

June 26, 2026

Study Record Updates

Last Update Posted (Actual)

June 26, 2026

Last Update Submitted That Met QC Criteria

June 25, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • Oral & Maxillofacial Surgery

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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