Telescopic prosthesis for extensive mandibular tooth loss with a polyetherketoneketone framework fabricated using digital workflow: A case report.

PATIENTS: This report describes the digital workflow for the design and fabrication of a telescopic prosthesis that incorporates a polyetherketoneketone (PEKK) primary crown and PEKK framework to restore multiple teeth in the mandible of a 56-year-old female patient. The process includes intraoral scanning, computer-aided design, digital milling of the telescopic crown and PEKK framework, and 3D printing of the casts. Good retention, mastication, aesthetics, and biological outcomes are observed in the four-year follow-up.

DISCUSSION: Two clinical outcomes are observed. (1) A PEKK telescopic prosthesis can be fabricated using digital workflows, which demonstrates an initial retention value sufficient for intraoral function. (2) No significant wear or decline in the retention force is observed over a four-year follow-up period.

CONCLUSIONS

The PEKK telescopic prosthesis facilitated favorable outcomes when restoring extensive mandibular tooth loss. We suggest that PEKK can be effectively used in the fabrication of telescopic prostheses supported by natural teeth.