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Application of Virtual Mandibular Position in Temporomandibular Jont Reconstruction With Costochondral Graft in Children Jaw Deformity

NCT03845088 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 15

Last updated 2023-04-10

No results posted yet for this study

Summary

Hypothesis：Computer-aided design virtual mandibular position is feasible for costochondral graft growing and occlusion stabilizing in the one-stage treatment of children temporomandibular joint ankylosis (TMJA) or condyle absence with jaw deformity.

Methods: The inclusion criteria is children patients younger than 12 years old with unilateral TMJA or condyle absence. A virtual mandibular position is designed preoperatively according to the CT data of jaw and dentition. 3D printed templates and occlusal splints are used to guide the costochondral graft and mandibular position. During surgery, the affected ramus is reconstructed with costochondral grafting under the virtual mandibular position. After surgery, the occlusal splint is fixed to maxilla at least one month, and then, replaced by orthodontic functional appliance to promote downward growth of the maxilla. Occlusion, facial symmetry, costochondral graft growing would be evaluated and analysed until adulthood.

Conditions

  • Temporomandibular Joint Ankylosis
  • Facial Asymmetry

Interventions

PROCEDURE

temporomandibular jont reconstruction with costochondral transplantation

temporomandibular jont reconstruction with costochondral transplantation guided by virtual mandibular position

Sponsors & Collaborators

  • Peking University

    lead OTHER

Principal Investigators

  • Yi Zhang, PhD · Peking University Hospital of Stomatology

Eligibility

Min Age
6 Years
Max Age
12 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-09-01
Primary Completion
2024-09-01
Completion
2024-12-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03845088 on ClinicalTrials.gov