Patient-Specific Polyether-Ether Ketone (PEEK) Onlay Eminoplasty (PSPOE): A Novel Protocol for Treatment of Recurrent Temporomandibular Joint Dislocation

This study aimed to introduce a new, less morbid computer-aided design-computer-aided manufacture (CAD-CAM) protocol that limits the excessive anteromedial movement of the mandibular condyle in front of the eminence.

Five patients were treated by surgical implantation of bilateral patient-specific polyether-ether ketone (PEEK) onlay eminoplasties; each implant was virtually designed using specific software and milled from medical-grade PEEK blocks. Intraoperatively, each implant was fixed with three mini-screws at the lateral aspect of the zygomatic arch. The follow-up period ranged from six months to two years.

The mean preoperative maximal incisal mouth opening was (48.8 mm) versus (36.8 mm) for the postoperative measurement, which was statistically significant.

Patient-specific PEEK eminoplasty is an effective alternative for surgical treatment of chronic recurrent TMJ dislocation.