Comparison of Strain Development of Implant Supported Three Units Fixed Partial Dentures Fabricated from Zirconia and PEEK “In-vitro study”

Document Type : Original Article

Authors

1 Instructor, Faculty of Oral and Dental Medicine Misr International University

2 Professor, Fixed Prosthdontic Department, Faculty of Oral and Dental Medicine, Misr international University, Cairo, Egypt

3 Professor, Chairperson Head of Fixed Prosthodontics, Conservative Dentistry Department, Faculty of Oral and Dental Medicine, Misr International University (MIU), Cairo, Egypt

4 Assistant Professor, Fixed Prosthodontics Division, Conservative Department, Faculty of Oral and Dental Medicine, Misr International University, Cairo ,Egypt

Abstract

Statement of the Problem: selection of prosthetic materials is a critical factor affecting the long-term success of implant supported restorations. PEEK poly-ether-ether ketone-is a quite new polymer used for dental applications. However, there are limited data available concerning Stress analysis and strain development of PEEK restorations as implant superstructure. Introduction; Materials and Methods; A total of 14 frameworks (n=7) were fabricated of Zirconia and PEEK by milling technique, divided into two equal groups to be randomly seated on its corresponding titanium abutment and then subjected to 5000 thermo-cycles. Strain gauge method was selected in this study to assess strain development where strain gauges were adhesively bonded mesial and distal to each implant-abutment unit and data were recorded using a strain meter device. Results; As regards the overall strain (mean of the four channels): there was no statistically significant difference between the two groups Conclusion; PEEK frameworks revealed slightly higher strain compared to zirconia with no significant difference in the over-all strain channels.

Keywords

Main Subjects

Egyptian Dental Journal
Volume 70, Issue 3 - Serial Number 4
Fixed Prosthodontics, Removable Prosthodontics and Dental Materials
July 2024
Pages 2537-2547

Files

Share

How to cite

Statistics