ClinicalTrials.gg
CompletedNCT07643259TJRUpdated Jun 11, 2026

Virtual Planning of Total TMJ Replacement

An interventional study of Custom made TMJ in TMJ Disorder, Mandibular Deficiency and TMJ Ankylosis, sponsored by Faculty of Dental Medicine for Girls. Completed at 1 site in Egypt. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-11.

Sponsored by Faculty of Dental Medicine for Girls · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years 9 months after the study started (first participant enrolled Aug 2023, registered May 2026).
Phase
Not applicable
Study type
Interventional
Enrollment
8
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Virtual Planning of Total TMJ Replacement

Read the detailed description

This study were performed on eight patients to evaluate the accuracy of virtual planning of the custom planning alloplastic TMJ replacement surgery

02

Conditions studied

  • TMJ Disorder
  • Mandibular Deficiency
  • TMJ Ankylosis

Keywords

  • Virtual Planning
  • Total TMJ replacement
  • End Stage TMJ Disorder
03

In context

Temporomandibular Joint Disorders

591 studies on the registry are indexed under Temporomandibular Joint Disorders; 149 are open to participants now.

This study's enrollment of 8 is below the median of 45 across 415 interventional studies indexed under Temporomandibular Joint Disorders.

Browse Temporomandibular Joint Disorders studies →

Lead sponsor

Faculty of Dental Medicine for Girls is the lead sponsor of 54 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
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

  • Patients have a history of end-stage TMJ disorders.
  • Patients with mandibular defects involving the TMJ,developmental abnormalities, trauma and, tumor.
  • Patients with failed grafts and alloplastic joint reconstruction.
  • Patients with recurrent TMJ ankylosis.

Exclusion criteria

Exclusion Criteria:

  • Patients with bone disease that can affect stability of the joint.
  • Patients with systemic disease, and patients.
Terms in these criteria, in plain language(2)

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.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
8 participants (actual)

Study arms

  • Experimental
    Total Joint replacement using Virtual planned custom made joint

    eight patients had been selected randomly according to the inclusion and exclusion criteria. All of them were need total joint replacement for their TMJ. Virtually planned custom-made joints were used. The accuracy of the artificial joints then measured.

    Device: Custom made TMJ

Interventions

  • DeviceCustom made TMJ

    Patients with end stage TMJ disorders, Tumors, Recurrent ankylosis, traumaof failed previous joint reconstruction had TMJ total Replacement using custom made TMJ via Virtual planning

06

What researchers measure

Primary outcomes

  1. Accuracy of the Virtually planned TMJ

    superimposition of the postoperative and preoperative instructions using CT calculating Linear deviation (mm) to assess surgical accuracy.

    Time frame: 3 days postoperative

Secondary outcomes

  1. effect of artificial joint on electromyographic activity of masticatory muscle

    was measured using electromyograph. the parameters were measured through recording Muscle activity during maximum voluntary clenching and at rest.

    Time frame: 3 months following up

  2. occlusal force

    occlusal force and distribution during clenching using B scan device. Parameters including Maximum occlusal force (%)

    Time frame: 3 months following up

07

Study locations

1 site
  • Dent for Girls
    Cairo, Nasr City 12345, Egypt
08

References and documents

Individual participant data

Plan to share: No

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

Ran from Aug 2023 to primary completion in Mar 2026, 31 months.

Of 242 non-industry interventional studies with no phase under Temporomandibular Joint Disorders, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 21. This study's 31 months is above that.

Counting every sponsor, half of 246 studies reached it within 10 months; a quarter within 5 and three quarters within 21.

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

Registered
May 31, 2026
First posted
Jun 11, 2026
StartActual
Aug 1, 2023
Primary completionActual
Mar 2, 2026
CompletionActual
May 24, 2026
Last update
Jun 11, 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 Jun 11, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07643259
Lead sponsor
Faculty of Dental Medicine for Girls
Responsible party
Mahetab Montaser (Assistant lecturer of Oral and Maxillofacial surgery, AlAhram Canadian Uiversity, Faculty of Dental Medicine for Girls) — Principal investigator
First posted
Jun 11, 2026
Start date
Aug 1, 2023
Primary completion
Mar 2, 2026
Completion
May 24, 2026
Last update
Jun 11, 2026

Study contacts

Mahetab Montaser, PhD Cand.
principal investigator · PHD Candidate
susan Hassan, professor
study chair · professor of oral and maxillofacial surgery
Sara Bahaa, Lecturer
study director · Lecturer of removable prosthesis at Alazhar university
wael shawkat, PHD
study director · consultant of Oral and Maxillofacial surgery, Nasr city Hospital for Health Insurance

Oversight

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

Not currently enrolling

This study is completed, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.

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