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Virtual Planning of Total TMJ Replacement

The Accuracy of Virtual Surgical Planning of Total Custom-fit Tempromandibular Joint Replacement

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07643259
Acronym
TJR
Enrollment
8
Registered
2026-06-11
Start date
2023-08-01
Completion date
2026-05-24
Last updated
2026-06-11

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

Conditions

Mandibular Deficiency, TMJ Ankylosis, TMJ Disorder

Keywords

Virtual Planning, Total TMJ replacement, End Stage TMJ Disorder

Brief summary

Virtual Planning of Total TMJ Replacement

Detailed description

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

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

Sponsors

Faculty of Dental Medicine for Girls
Lead SponsorOTHER_GOV

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Masking description

non applicable

Intervention model description

eight patients were treated with alloplastic TMJ replacement using patient custom made joint designed via virtual surgical planning

Eligibility

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

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

* Patients with bone disease that can affect stability of the joint. * Patients with systemic disease, malignancy and immunocompromised patients.

Design outcomes

Primary

MeasureTime frameDescription
Accuracy of the Virtually planned TMJ3 days postoperativesuperimposition of the postoperative and preoperative instructions using CT calculating Linear deviation (mm) to assess surgical accuracy.

Secondary

MeasureTime frameDescription
effect of artificial joint on electromyographic activity of masticatory muscle3 months following upwas measured using electromyograph. the parameters were measured through recording Muscle activity during maximum voluntary clenching and at rest.
occlusal force3 months following upocclusal force and distribution during clenching using B scan device. Parameters including Maximum occlusal force (%)

Countries

Egypt

Contacts

PRINCIPAL_INVESTIGATORMahetab Montaser, PhD Cand.

PHD Candidate

STUDY_CHAIRsusan Hassan, professor

professor of oral and maxillofacial surgery

STUDY_DIRECTORSara Bahaa, Lecturer

Lecturer of removable prosthesis at Alazhar university

STUDY_DIRECTORwael shawkat, PHD

consultant of Oral and Maxillofacial surgery, Nasr city Hospital for Health Insurance

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 12, 2026