The use of a masticatory robot to analyze the shock absorption capacity of different restorative materials for implant prosthesis

Short‐term report of an ongoing prospective cohort study evaluating the outcome of full‐arch implant‐supported fixed hybrid polyetheretherketone‐acrylic resin prostheses and the All‐on‐Four concept

“…22 PEEK (Thornton Cleveleys, United Kingdom: PEEK-OPTIMA Invibio Ltd.) has been used clinically for more than 15 years and in over 5 000 000 implanted devices across a wide range of medical applications, including spinal fusion, where it has become an industry standard implant material. [24][25][26][27][28][29] Due to its proven biocompatible nature and its shock absorbing characteristics, 12,13,30 while maintaining the possibility of CAD/CAM manufacture, such a material could be interesting for use in full-arch restorations as a nonmetal alternative. [24][25][26][27][28][29] Due to its proven biocompatible nature and its shock absorbing characteristics, 12,13,30 while maintaining the possibility of CAD/CAM manufacture, such a material could be interesting for use in full-arch restorations as a nonmetal alternative.…”

“…17,23 Specifically in the field of dentistry, PEEK has been used over the last decade in healing caps and temporary abutments. [24][25][26][27][28][29] Due to its proven biocompatible nature and its shock absorbing characteristics, 12,13,30 while maintaining the possibility of CAD/CAM manufacture, such a material could be interesting for use in full-arch restorations as a nonmetal alternative. Nevertheless, proof on its long-term outcome in implant-supported fixed rehabilitations is lacking, making it necessary to evaluate the outcome of implantsupported fixed prosthetic rehabilitations using PEEK material.…”

“…8,9 The historical perspective of framework materials includes the evolution from cast noble (gold, silver, etc) or base metal alloys (nickel and chromium) to the modern milled titanium and zirconium frameworks, the latter providing high biocompatibility, corrosion resistance, and the possibility of computer assisted-design/computed assisted-manufacture (CAD/CAM), an important improvement to achieve a better fit between framework and dental implants. 12,13 Polyetheretherketone (PEEK) consists in a high-performance polymer from the polyaryletherketone (PAEK) family. 12,13 Polyetheretherketone (PEEK) consists in a high-performance polymer from the polyaryletherketone (PAEK) family.…”

“…8,10,11 Nevertheless, the high stiffness of these frameworks measured by the flexural strength (titanium: 434 MPa; zirconia: 900-1100 MPa) can be considered a potential disadvantage in shock absorption behavior of the prosthesis. 12,13 Polyetheretherketone (PEEK) consists in a high-performance polymer from the polyaryletherketone (PAEK) family. PEEK is a thermoplastic polymer that is typically used as a metal replacement, owing to its strength to weight ratio and corrosion resistance.…”

Assessment of stress distribution around implant fixture with three different crown materials

“…Crown materials with high modulus of elasticity (as Zirconia and ceramic crowns) transfer high values of the applied load to underlying bone, while Acrylic resin (has low modulus of elasticity) reduce the transmitted forces to bone by about 94% when compared with Zirconia [36]. Therefore, crowns made from composite and above all acrylic resin are more able to absorb shock from occlusal forces than crowns made of zirconia, ceramic material, or gold alloy [37].…”