TY - JOUR
T1 - Comparative in vitro study on biomechanical behavior of zirconia and polyetheretherketone biomaterials exposed to experimental loading conditions in a prototypal simulator
AU - Vertucci, Vincenzo
AU - Marrelli, Benedetta
AU - Ruggiero, Roberta
AU - Iaquinta, Mario
AU - Marenzi, Gaetano
AU - Parisi, Gian Marco
AU - Gasparro, Roberta
AU - Pacifici, Andrea
AU - Palumbo, Gianfranco
AU - Sammartino, Gilberto
AU - Tatullo, Marco
N1 - Funding Information:
Part of the current activities have been carried out Project CustOm-made aNTibacterical/bioActive/ bioCoated prostheses (CONTACT) - CUP: B19J2000 0490005.
Copyright:
© The author(s).
PY - 2023/4/2
Y1 - 2023/4/2
N2 - Zirconia and polyetheretherketone (PEEK) are two biomaterials widely investigated as substitute for metals in oral prosthetic rehabilitation. To achieve a proper biomechanical behavior, the prosthetic biomaterials must ensure a good resistance to loads, as this is a crucial characteristic enabling their use in dental applications. The aim of this study was to investigate differences in the fracture resistance of different biomaterials in an experimental environment: fixed partial dentures (FPDs) screwed in a prototype of biomimetic mandible. 10 Samples of FPDs were allocated in 2 groups (A and B): Group A (n=5) involved FPDs in zirconia-ceramic, and Group B (n=5) involved FPDs in PEEK-composite. The samples were loaded by means of a three-point bending mechanical test, and the load to fracture has been evaluated generating a point-by-point graphics (speed/load and time/deformation). The samples were further analyzed by micro-computed tomography (micro-CT) and described under experimental loading conditions. Zirconia-ceramic FDPs were the samples reporting the worst results, showing a lower value of vertical displacement with respect to PEEK-based samples. The micro-CT results have further confirmed the preliminary results previously described. This in vitro study aims to give analytic data on the reliability of PEEK as a reliable and strong biomaterial for prosthetic treatments.
AB - Zirconia and polyetheretherketone (PEEK) are two biomaterials widely investigated as substitute for metals in oral prosthetic rehabilitation. To achieve a proper biomechanical behavior, the prosthetic biomaterials must ensure a good resistance to loads, as this is a crucial characteristic enabling their use in dental applications. The aim of this study was to investigate differences in the fracture resistance of different biomaterials in an experimental environment: fixed partial dentures (FPDs) screwed in a prototype of biomimetic mandible. 10 Samples of FPDs were allocated in 2 groups (A and B): Group A (n=5) involved FPDs in zirconia-ceramic, and Group B (n=5) involved FPDs in PEEK-composite. The samples were loaded by means of a three-point bending mechanical test, and the load to fracture has been evaluated generating a point-by-point graphics (speed/load and time/deformation). The samples were further analyzed by micro-computed tomography (micro-CT) and described under experimental loading conditions. Zirconia-ceramic FDPs were the samples reporting the worst results, showing a lower value of vertical displacement with respect to PEEK-based samples. The micro-CT results have further confirmed the preliminary results previously described. This in vitro study aims to give analytic data on the reliability of PEEK as a reliable and strong biomaterial for prosthetic treatments.
KW - Biocompatible Materials
KW - Materials Testing
KW - Reproducibility of Results
KW - X-Ray Microtomography
KW - Zirconia
KW - three-point bending test
KW - FPDs
KW - biomaterials
KW - PEEK
UR - http://www.scopus.com/inward/record.url?scp=85153447879&partnerID=8YFLogxK
U2 - 10.7150/ijms.82297
DO - 10.7150/ijms.82297
M3 - Article
C2 - 37082726
SN - 1449-1907
VL - 20
SP - 639
EP - 651
JO - International journal of medical sciences
JF - International journal of medical sciences
IS - 5
ER -