ClinicalTrials.gg
Not yet recruitingNCT07826416herbert screwUpdated Sep 17, 2026

Comparing Bone Healing in Jaw Fractures Fixed With Herbert Screws Versus 3D Miniplates

An interventional study of headless compression screw and 3D mini plates in Anterior Mandibular Fracture, sponsored by Cairo University. Not yet recruiting. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-17.

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

Phase
Not applicable
Study type
Interventional
Enrollment
22
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 20 studies in Mandibular Fractures by Cairo University — 6 open to participants now, 7 under way, none of them phase 3. Mandibular Fractures · Cairo University.

Planned enrollment
7th of 18
22 · median 20
Started
2026
with 4 others
No phase
18 of 20
6 open now
Registered
18th of 20
by date

Among the 20 studies in Mandibular Fractures by Cairo University, this one is the 7th largest by planned enrollment of the 18 interventional ones, is one of 5 that started in 2026, is one of 18 with no phase, and was the 18th registered.

By phase

20 studies; the count open now beside each. This study's row is marked.

No phasethis study18 · 6 open
Observational2 · 0 open

By the year they started

First in 2017; this study’s year is marked. 5 started in 2026.

Size and results

Median enrollment 20 across the 18 interventional studies, 183 across the 2 observational. Of the 4 that completed or were terminated, 0 (0%) have results posted.

Was this useful?
Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 20 studies in Mandibular Fractures by Cairo University, or all of them as a file.
02

Study summary

the goal of this clinical trial is to compare two methods of fixing fractures in the front part of the jaw (mandible): second-generation Herbert screws and 3-dimensional miniplates.

Importance:

Choosing the right fixation method is crucial for proper bone healing after a jaw fracture.

Participants:

Patients with recent anterior mandibular fractures requiring surgery.

Key Findings:

The study assessed which method better maintained bone density around the fracture, indicating potential benefits for healing.

Implications:

Understanding the effectiveness of these methods aids healthcare providers in making informed decisions, ultimately improving patient outcomes.

03

Conditions studied

  • Anterior Mandibular Fracture

Browse trials for

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • •Adult patients aged 18 years or older, irrespective of gender.

    • Anterior mandibular fractures indicated for open reduction and internal fixation (inter-foraminal).
    • Dentate/partially dentate patients.

Exclusion criteria

Exclusion Criteria:

  • •Medically compromised patients contradicting operation (, IV \& V).

    • Comminuted fractures.
    • Completely edentulous patients.
Terms in these criteria, in plain language(1)

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.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
22 participants (estimated)

Study arms

  • Experimental
    interventional group

    Device: headless compression screw

  • Active comparator
    comparator group

    Device: 3D mini plates

Interventions

  • Deviceheadless compression screw

    •The second-generation Herbert screw has emerged as a minimally invasive alternative, offering compression across fracture lines and requiring less surgical exposure.

  • Device3D mini plates

    •Conventional fixation using 3D miniplates has been widely accepted for managing anterior mandibular fractures because of their ability to provide stable three-dimensional support

06

What researchers measure

Primary outcomes

  1. Interfragmentary Bone Density

    Time frame: Immediately postoperative (within one week) and after 3 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking 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

Start is estimated for Sep 2026; primary completion for Feb 2027, 5 months later.

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 5 months is below 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
Sep 12, 2026
First posted
Sep 17, 2026
StartEst.
Sep 1, 2026
Primary completionEst.
Feb 2027
CompletionEst.
Apr 2027
Last update
Sep 17, 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.
No changes since tracking began. The registry record was last updated on Sep 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07826416
Lead sponsor
Cairo University
Responsible party
Dina Abd El Aziz Metwally (PHD candidate, Cairo University) — Principal investigator
First posted
Sep 17, 2026
Start date
Sep 1, 2026 (estimated)
Primary completion
Feb 2027 (estimated)
Completion
Apr 2027 (estimated)
Last update
Sep 17, 2026

Study contacts

Dina metwally
Contact
dina.abdo@dentistry.cu.edu.eg
01224433252

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions 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.

Start the discussion