ClinicalTrials.gg
RecruitingNCT07904897Updated Oct 29, 2026

Optimized Osteosynthesis: Bone Mineral Density Recovery in Mandibular Body Fractures Using Patient-Specific Versus Conventional Plates

An interventional study of Open reduction and Internal fixation of a mandibular body fracture and Open reduction and Internal fixation of a mandibular body fracture in Mandibular Fractures, sponsored by Cairo University. Recruiting at 1 site in Egypt. Open to participants aged 18 Years to 55 Years. Per ClinicalTrials.gov, last updated 2026-10-29.

Sponsored by Cairo University · Not applicable, Interventional, and Treatment

Updated Oct 29, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
26
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

The goal of this randomized controlled clinical trial is to evaluate and compare the bone mineral density (BMD) recovery following open reduction and internal fixation (ORIF) of mandibular body fractures using patient-specific plates versus conventional plates. Bone density at the fracture site will be quantified using Hounsfield Units (HU) on computed tomography (CT) scans.

The main question it aims to answer is: Do patient-specific plates provide a superior recovery of bone mineral density at the fracture site compared to conventional plates in patients undergoing fixation for mandibular body fractures?

Read the detailed description

This parallel-group, randomized controlled clinical trial evaluates the efficacy of patient-specific (custom-designed) fixation plates compared to conventional plates regarding bone mineral density recovery in mandibular body fractures.

Upon consenting to participate, eligible patients requiring open reduction and internal fixation (ORIF) for mandibular body fractures will be randomly assigned to one of two groups:

  1. Group I (Intervention): Patients will receive patient-specific titanium plates pre-fabricated utilizing computer-aided design and computer-aided manufacturing (CAD/CAM) based on preoperative 3D computed tomography (CT) data.
  2. Group II (Control): Patients will receive conventional, standard stock titanium plates adapted manually during surgery.

All surgical procedures will be standardized and performed under general anesthesia by the same surgical team.

Radiological Assessment of Bone Density:

The primary outcome, bone mineral density recovery at the fracture site, will be analyzed using Hounsfield Units (HU). Patients will undergo multi-slice CT scanning at baseline (within 1 week) and at 6 months postoperatively to assess the recovery.

02

Conditions studied

  • Mandibular Fractures

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Keywords

  • Mandibular Body Fracture
  • Patient-Specific Plates
  • Conventional plates
  • Bone Mineral Density
03

In context

Mandibular Fractures

91 studies on the registry are indexed under Mandibular Fractures; 24 are open to participants now.

This study's planned enrollment of 26 is above the median of 21 across 72 interventional studies indexed under Mandibular Fractures.

Browse Mandibular Fractures studies →

Lead sponsor

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.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
No

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.

Inclusion criteria

  • Unilateral or bilateral mandibular body fracture requiring open reduction and internal fixation (ORIF), presenting either isolated or concurrently with other maxillofacial, midface, or other mandibular fractures.
  • Patients in good general health who are medically cleared to undergo major maxillofacial surgery under general anesthesia.

Exclusion criteria

Exclusion Criteria:

  • Presence of comminuted fractures or pre-existing malunions at the fracture site.
  • Patients with high-risk systemic diseases or any medical conditions that contraindicate the administration of general anesthesia.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
26 participants (estimated)

Study arms

  • Experimental
    Fixation of mandibular body fractures with patient-specific titanium plates.

    Patients in this group will undergo open reduction and internal fixation (ORIF) using custom-designed titanium plates. The plates are pre-fabricated utilizing computer-aided design and computer-aided manufacturing (CAD/CAM) based on the patient's preoperative 3D computed tomography (CT) data.

    Procedure: Open reduction and Internal fixation of a mandibular body fracture

  • Active comparator
    Fixation of mandibular body fractures with conventional plates.

    Patients in this group will undergo standard open reduction and internal fixation (ORIF) using commercially available, standard stock titanium plates.

    Procedure: Open reduction and Internal fixation of a mandibular body fracture

Interventions

  • ProcedureOpen reduction and Internal fixation of a mandibular body fracture

    Patient-Specific titanium plates designed using virtual 3D planning software and fabricated via computer-aided manufacturing to match the patient's precise pre-injury mandibular anatomy.

  • ProcedureOpen reduction and Internal fixation of a mandibular body fracture

    Commercially available, standard stock titanium plates will be adapted and bent manually by the surgeon during the operation to fit the patient's mandibular anatomy.

06

What researchers measure

Primary outcomes

  1. Bone density

    Bone mineral density recovery at the fracture site, will be analyzed using Hounsfield Units (HU).

    Time frame: Patients will undergo multi-slice CT scanning at baseline (within 1 week) and at 6 months postoperatively to assess the recovery.

Secondary outcomes

  1. Postoperative occlusion

    Number of participants achieving a satisfactory occlusion, defined as meeting three criteria simultaneously: dental midline deviation ≤ 1 mm, bilateral normal canine relationship, and bilateral normal molar relationship. Failure in any criterion is classified as unsatisfactory.

    Time frame: One week postoperatively

  2. Incidence of Postoperative Neurosensory Dysfunction

    The number of participants who develop neurosensory dysfunction. Sensation is evaluated using the Two-Point Discrimination (2PD) test. Neurosensory dysfunction is defined as a binary categorical outcome where a participant fails to distinguish two distinct points at the standard clinical threshold (≤ 5 mm). Participants who require a distance greater than 5 mm to discriminate the two points are marked as having neurosensory dysfunction.

    Time frame: One week postoperatively

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • Jadhav A, Mundada B, Deshmukh R, Bhutekar U, Kala A, Waghwani K, Mishra A. Mandibular Ramus Fracture: An Overview of Rare Anatomical Subsite. Plast Surg Int. 2015;2015:954314. doi: 10.1155/2015/954314. Epub 2015 Nov 3. PubMed 26613050 ↗
  • Leathers R, Le AD, Black E, McQuirter JL. Orofacial injury in underserved minority populations. Dent Clin North Am. 2003 Jan;47(1):127-39. doi: 10.1016/s0011-8532(02)00053-8. PubMed 12519010 ↗
  • Scolozzi P, Richter M. Treatment of severe mandibular fractures using AO reconstruction plates. J Oral Maxillofac Surg. 2003 Apr;61(4):458-61. doi: 10.1053/joms.2003.50087. PubMed 12684963 ↗
  • Natu SS, Pradhan H, Gupta H, Alam S, Gupta S, Pradhan R, Mohammad S, Kohli M, Sinha VP, Shankar R, Agarwal A. An epidemiological study on pattern and incidence of mandibular fractures. Plast Surg Int. 2012;2012:834364. doi: 10.1155/2012/834364. Epub 2012 Nov 8. PubMed 23227327 ↗
  • Michelet FX, Deymes J, Dessus B. Osteosynthesis with miniaturized screwed plates in maxillo-facial surgery. J Maxillofac Surg. 1973 Jun;1(2):79-84. doi: 10.1016/s0301-0503(73)80017-7. No abstract available. PubMed 4520558 ↗
  • Kushner GM, Alpert B. Open reduction and internal fixation of acute mandibular fractures in adults. Facial Plast Surg. 1998;14(1):11-21. doi: 10.1055/s-0028-1085298. PubMed 10371890 ↗
  • Kende PP, Wadewale M, Ranganath S, Desai H, Landge JS, Sarda A. An In Vitro Evaluation of a Novel Design Z Plate for Fixation of Mandibular Symphysis and Parasymphysis Fractures-A Finite Element Analysis. J Maxillofac Oral Surg. 2022 Sep;21(3):929-935. doi: 10.1007/s12663-021-01576-3. Epub 2021 Apr 26. PubMed 36274868 ↗
  • Liu Y, Wei B, Li Y, Gu D, Yin G, Wang B, Xu D, Zhang X, Kong D. The 3-dimensional miniplate is more effective than the standard miniplate for the management of mandibular fractures: a meta-analysis. Eur J Med Res. 2017 Feb 14;22(1):5. doi: 10.1186/s40001-017-0244-2. PubMed 28196543 ↗
  • Liu YF, Fan YY, Jiang XF, Baur DA. A customized fixation plate with novel structure designed by topological optimization for mandibular angle fracture based on finite element analysis. Biomed Eng Online. 2017 Nov 15;16(1):131. doi: 10.1186/s12938-017-0422-z. PubMed 29141673 ↗
  • Singh V, Puri P, Arya S, Malik S, Bhagol A. Conventional versus 3-dimensional miniplate in management of mandibular fracture: a prospective randomized study. Otolaryngol Head Neck Surg. 2012 Sep;147(3):450-5. doi: 10.1177/0194599812449437. Epub 2012 May 30. PubMed 22647925 ↗
  • Saleh HO, Moussa BG, Salah Eddin KA, Noman SA, Salah AM. Assessment of CAD/CAM Customized V Pattern Plate Versus Standard Miniplates Fixation in Mandibular Angle Fracture (Randomized Clinical Trial). J Maxillofac Oral Surg. 2023 Dec;22(4):995-1005. doi: 10.1007/s12663-023-02027-x. Epub 2023 Oct 27. PubMed 38105847 ↗
  • Pandey S, Yadav P, Roychoudhury A, Bhutia O, Goswami D. A randomized controlled trial to compare functional, combined rigid and functional and rigid fixation in double mandibular fractures. J Oral Biol Craniofac Res. 2022 Mar-Apr;12(2):233-237. doi: 10.1016/j.jobcr.2022.02.003. Epub 2022 Feb 22. PubMed 35284226 ↗
  • Wusiman P, Abasi K, Maimaitishawuti D, Moming A. Management of Mandibular Angle Fractures Using One Miniplate or Two Miniplate Fixation System: A Systematic Review and Meta-Analysis. J Oral Maxillofac Surg. 2019 Aug;77(8):1673.e1-1673.e11. doi: 10.1016/j.joms.2019.04.006. Epub 2019 Apr 12. PubMed 31077670 ↗

Related links

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Oct 2026 (actual). Primary completion is estimated for Nov 2027, 13 months after the start.

Of 38 non-industry interventional studies with no phase under Mandibular Fractures, half reached primary completion within 13 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 24. This study's planned 13 months is close to that.

Counting every sponsor, half of 38 studies reached it within 13 months; a quarter within 9 and three quarters within 24.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 23, 2026
First posted
Oct 29, 2026
StartActual
Oct 12, 2026
Primary completionEst.
Nov 2027
CompletionEst.
Jan 2028
Last update
Oct 29, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Registered
First appeared on the registry. No changes since
Oct 29, 2026
Show all 1 update
  1. Oct 29, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07904897
Lead sponsor
Cairo University
Responsible party
Dina Yacoub Girgis (Assistant lecturer, Cairo University) — Principal investigator
First posted
Oct 29, 2026
Start date
Oct 12, 2026
Primary completion
Nov 2027 (estimated)
Completion
Jan 2028 (estimated)
Last update
Oct 29, 2026

Study contacts

Dina Y Girgis
Contact
dina.yacoub@dentistry.cu.edu.eg
01278061226
Rofaida A Abbas, PhD
study director · Associate Professor
Nahla M Awadallah, PhD
study director · Associate Professor
Dina Y Girgis
principal investigator · Assistant Lecturer

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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