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Introduction <p>Ameloblastomas are benign yet locally aggressive odontogenic tumors that account for 1–3% of such neoplasms. Their management poses challenges in balancing radical resection with functional and aesthetic outcomes. This case describes a 55-year-old male with an extensive right mandibular ameloblastoma treated with segmental resection and reconstruction using a custom alloplastic temporomandibular joint (TMJ) prosthesis.</p> Observation(s) <p>The patient presented with progressive right lower-lip numbness. Preoperative computed tomography revealed an expansile unilocular lesion involving the right mandibular body, angle, and ramus with cortical perforation and buccolingual expansion. Virtual surgical planning guided an extended total joint replacement to restore mandibular continuity and articulation. Segmental resection with intraoperative frozen-section analysis confirmed clear margins, and a patient-specific TMJ prosthesis was fixed using titanium screws. Recovery was uneventful, and the patient resumed a normal diet within one month. At 12 months, he demonstrated normal occlusion, painless TMJ movement, and stable radiographic integration without recurrence.</p> Conclusion <p>This case highlights the value of multidisciplinary planning and patient-specific reconstruction in managing extensive mandibular pathology. Custom TMJ prostheses, combined with virtual surgical planning, provide predictable functional and aesthetic outcomes while minimizing donor-site morbidity.</p>

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Custom Temporomandibular Joint Reconstruction Following Extensive Mandibular Ameloblastoma Resection: A Case Report

  • 期刊论文

  • 发表日期：

    2026年1月27日

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  • Raisa Chowdhury,
  • Shahid Aziz

摘要

Introduction

Ameloblastomas are benign yet locally aggressive odontogenic tumors that account for 1–3% of such neoplasms. Their management poses challenges in balancing radical resection with functional and aesthetic outcomes. This case describes a 55-year-old male with an extensive right mandibular ameloblastoma treated with segmental resection and reconstruction using a custom alloplastic temporomandibular joint (TMJ) prosthesis.

Observation(s)

The patient presented with progressive right lower-lip numbness. Preoperative computed tomography revealed an expansile unilocular lesion involving the right mandibular body, angle, and ramus with cortical perforation and buccolingual expansion. Virtual surgical planning guided an extended total joint replacement to restore mandibular continuity and articulation. Segmental resection with intraoperative frozen-section analysis confirmed clear margins, and a patient-specific TMJ prosthesis was fixed using titanium screws. Recovery was uneventful, and the patient resumed a normal diet within one month. At 12 months, he demonstrated normal occlusion, painless TMJ movement, and stable radiographic integration without recurrence.

Conclusion

This case highlights the value of multidisciplinary planning and patient-specific reconstruction in managing extensive mandibular pathology. Custom TMJ prostheses, combined with virtual surgical planning, provide predictable functional and aesthetic outcomes while minimizing donor-site morbidity.