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Evaluation of the Accuracy of 3d Printed Reduction Guide in Treatment of Mandibular Fractures Using Two Different Methods of Virtual Planning

Evaluation of Accuracy of the Use of 3d Printed Reduction Guide in Treatment of Mandibular Fractures Using Two Different Methods of Virtual Planning

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07385924
Enrollment
24
Registered
2026-02-04
Start date
2024-02-01
Completion date
2025-11-01
Last updated
2026-02-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mandibular Fracture, Virtual Plan of Mandibular Fracture

Keywords

mandibular fracture, virtual surgical planning

Brief summary

This study will evaluate the accuracy of the use of 3-D printed reduction guide in treatment of mandibular fractures using two different methods of virtual planning.

Detailed description

This study will be conducted clinically on 24 patients with mandibular fracture divided into 2 groups, (group A) virtual planning will be done using the manual virtual reduction method and (group B) virtual planning will be done using the mirror image technique. Design of the reduction guide will be done in accordance with the virtual plan. The surgical reduction will be done with the aid of the guide.

Interventions

DEVICEMandibular fracture treatment by 3d printed guide where virtual planning will be done using the manual reduction technique.

Mandibular fracture treatment by 3d printed guide where virtual planning will be done using the manual reduction technique.

DEVICEMandibular fracture treatment by 3d printed guide where virtual planning will be done using the mirror image reduction technique.

Mandibular fracture treatment by 3d printed guide where virtual planning will be done using the mirror image reduction technique.

Sponsors

Alexandria University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Masking description

Patients were allocated in a 1:1 ratio using an on-site computer software system with concealed allocation through sequentially numbered, opaque, sealed envelopes (SNOSE). (group A) virtual planning will be done using the manual virtual reduction method and (group B) virtual planning will be done using the mirror image technique.

Intervention model description

Randomized controlled clinical trial

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Medically fit patients free from relevant conditions contraindicating surgery. * Unilateral mandibular fractures indicated for open reduction and internal fixation

Exclusion criteria

* Infected fracture site. * Patients with systemic bone diseases.

Design outcomes

Primary

MeasureTime frameDescription
Evaluation of accuracy of mandibular reduction of each surgical guide.Immediately after the surgeryEvaluation of accuracy of surgical guide will be done using slicer and blender software with the aid of the preoperative and postoperative CT. Preoperative planning will be merged with the new CT data to identify the accuracy of reduction. Landmark-Based Positional Analysis was used to quantify positional accuracy of the reduced mandibular segment. Bilateral mandibular landmarks were selected to represent the spatial position of the fractured and adjacent segments. The selected landmarks included condylion (Co), gonion (Go), and mental foramen (MF), which are distributed across the mandibular ramus, angle, and body regions. linear distances to the three reference planes were recorded in millimeters. To provide a comprehensive three-dimensional representation of positional discrepancy, an asymmetry index (AI) was calculated for each bilateral landmark.

Secondary

MeasureTime frameDescription
Clinical evaluation of postoperative occlusion3 monthsAssessment of occlusion will be done By checking the maximal intercuspal position (centric occlusion) to ensure proper occlusal relationship including molar relation, canine relation and midline centralization. The percentage of patients suffering from occlusal disturbances will be recorded.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026