Skip to content

Multi-center prospective clinical study on the treatment of TMJ ankylosis with Chinese metal-polymer integrated customized total TMJ prosthesis

Multi-center prospective clinical study on the treatment of TMJ ankylosis with Chinese metal-polymer integrated customized total TMJ prosthesis

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500112313
Enrollment
Unknown
Registered
2025-11-12
Start date
2024-06-17
Completion date
Unknown
Last updated
2025-11-17

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

Conditions

Ankylosis of the temporomandibular joint

Interventions

Control group:Biomet standard prosthesis replacement
Treatment group:Chinese metal-polymer integrated customized prosthesis replacement

Sponsors

Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1) The subjects are aged 18-75 years old (inclusive), regardless of gender; 2) Cases requiring joint replacement due to TMJ osseous rigidity; 3) Those who have not participated in other clinical validation within 3 months; 4) No acute infectious disease, mental illness, systemic disease; 5) Volunteer and sign the informed consent.

Exclusion criteria

Exclusion criteria: 1) Patients who are allergic to plants in titanium alloy; 2) Patients with acute or severe infection or chronic infection in the acute phase; 3) Patients with extensive soft tissue defects caused by surgery and postoperative wounds without adequate soft tissue coverage; 4) Patients with radiation osteomyelitis, acute and chronic osteomyelitis, and osteoporosis; 5) Patients with uncontrolled primary diseases of heart, lung, brain, kidney and other important organs; 6) People with mental illness; 7) Pregnant and lactating women; 8) Patients who cannot cooperate with treatment; 9) Patients with middle and advanced malignant tumors, distant metastasis of tumors, and tumor recurrence; 10) Patients with critical conditions, it is difficult to make an accurate evaluation of the effectiveness and safety of the prosthesis.

Design outcomes

Primary

MeasureTime frame
Maximum mouth opening degree, MIO;

Secondary

MeasureTime frame
Mouth opening;Occlusion;Mandibular movement;Maxillofaical shape;

Countries

China

Contacts

Public ContactShanyong Zhang

Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine

zhangshanyong@126.com+86 138 1767 3406

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026