Mechanical Properties of Fused Deposition Modeling of Polyetheretherketone (PEEK) and Interest for Dental Restorations: A Systematic Review

Abstract

The aim of this systematic review was to determine the optimal printing parameters for the producing of fused deposition modeling (FDM) 3D-printed polyetheretherketone (PEEK) elements with mechanical properties suitable for dental restorations. Indeed, the mechanical properties are a critical prerequisite for the study of other parameters, such as physical, aesthetic and biological properties. An exhaustive electronic search was carried out in the PubMed, Embase and Web of knowledge databases to gather all the studies evaluating the influence of the printing parameters on the obtained mechanical properties of FDM 3D-printed PEEK elements were selected. Initially, the search resulted in 614 eligible papers. Independent screenings of the abstracts were performed by two authors to identify the articles related to the question. Twenty-nine studies were selected, of which eleven were further excluded after reading of the full text, and finally, eighteen articles were included in this review. The studies were difficult to compare due to the variability of the printing parameters and the types of PEEK. However, it seems interesting to use a high infill rate, a high chamber temperature close to that of the printing temperature and a heat post-treatment to obtain 3D PEEK elements presenting properties adapted to use as dental restorations. The analysis of the available literature suggested that the properties of PEEK could make it an interesting material in dental restorations to be performed with FDM additive manufacturing.

Optimization of 3D Printing Technology for Fabrication of Dental Crown Prototype Using Plastic Powder and Zirconia Materials

“…The mechanical properties for PLA materials fabricated with FDM technology such as tensile strength, tensile modulus and elongation are reported at a range of 15.5–72.2 MPa, 2.02–3.55 GPa and 0.5–9.2%, respectively [ 36 ]. Similarly, other authors have reported the elastic modulus of polyetheretherketone for dental restoration via FDM at 3–4 GPa [ 37 ]. The ASTM standard reported the minimum and maximum range for the ultimate tensile strength, elongation and compressive strength at 36–71.62 MPa, 3–20% and 41.26 MPa, respectively.…”

Stress Distribution on Prepared Tooth With Shoulder and Radial Shoulder Margin to Receive Crowns of Three Different Materials: A Finite Element Analysis

“…Zirconia, a dental ceramic crown material, has superior properties of strength and durability when compared to all-ceramic crowns. A randomized controlled trial conducted in 2017 [ 9 ] concluded that the crown of this material fared just as well as metal-based crowns, with studies confirming that the material has relatively less cytotoxic effects [ 10 ].…”

3D-printing of porous structures for reproduction of a femoral bone

“…An interesting example is the use of PEEK or similar materials that can easily reproduce the structure of bone, but their use involves a complicated and expensive process. [42][43][44] An interesting possibility is offered by bone tissue printing for the fabrication of fractured parts that should be removed or low in bone density through 3D Bioprinting. 45,46 Another improvement concerns the use of an optimized infill for printing bone that is more accurate than the one used and more like a trabecular structure so that it is visually increasingly accurate and close to reality.…”