Zirconia-veneered polyetherketoneketone frameworks of implant-supported complete arch fixed dental prostheses: A report on 5 patients

Bock Young Jung, Won Se Park, Chang Woo Woo, Sol Ah Jeong

Research output: Contribution to journalArticlepeer-review

Abstract

Metal frameworks have been used for implant-supported complete arch fixed dental prostheses (ISCFDPs) for maxillary or mandibular edentulous arches with a crown height space of more than 15 mm. However, technical difficulties in the casting, weight, and lack of passivity of the metal have led dentists and dental laboratory technicians to choose materials with different biomechanical properties, including polyetheretherketone (PEEK) and polyetherketoneketone (PEKK). This clinical report describes the design of ISCFDPs using PEKK frameworks, the number of cantilevers, the condition of the opposing dentition, and the incidence of complications, including zirconia crown or PEKK framework fracture, as well as the clinical outcomes of 5 patients observed prospectively over 8 to 65 months. No mechanical complications of PEKK-made ISCFDPs opposing removable prostheses occurred, regardless of the presence of cantilevers. The ISCFDPs that opposed natural dentition or a combination of the natural dentition and fixed prostheses showed different clinical outcomes depending on the length of cantilevers and the number and location of pontics.

Original languageEnglish
JournalJournal of Prosthetic Dentistry
DOIs
Publication statusAccepted/In press - 2022

Bibliographical note

Funding Information:
Supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1A2C2004893 ).

Publisher Copyright:
© 2022 Editorial Council for The Journal of Prosthetic Dentistry

All Science Journal Classification (ASJC) codes

  • Oral Surgery

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