Peek material as an option in managing difficult implants positions and angulation (modified)
- 1. PEEK material as an option in managing difficult implants positions and angulation By Dr.Osama Askar BDS. MSC. PHD. Faculty of Dentistry Mansoura University
- 2. • PEEK was firstly developed by group of English scientists In 1978 • In 1980s PEEK was first used in industrial applications in the manufacture of aircraft, turbine blades, piston parts, cable insulation, and compressor plate valves. • In 1992s PEEK was introduced in dental applications. PEEK History
- 3. Air crafts Engine parts Propellers Tubes Cable holders Gears
- 4. What is PAEK Polyaryletherketone (PAEK).Is a partially crystalline, thermoplastic high temperature-resistant & high-performance plastic with a melting temperature of approximately 334°C (has high temperature stability)
- 5. What is PAEK It Is polyarayle with Kentone group and ether group Ketone Ether Aryle or benzen
- 7. Carbon fiber modified PEEK CFR-PEEK • PEEK can easily be modified by including other materials. For example, carbon fiber insertion may increase the elastic modulus to 18 GPa which make its modulus of elasticity comparable to the cortical bone (14 Gpa) and the dentin. Carbon fiber reinforced PEEK Plate
- 8. Glass fiber modified PEEK GFR-PEEK • Glass fiber reinfocement can increase modulus of elasticity of PEEK to 12 GPa. • 10% glass fibers with diameters ranging from a few microns to ten microns. • It is mainly used as dental implants.
- 9. Ceramic modified PEEK BioHPP (Bioactive High performance polymer) It is a modified PEEK polymer by adding special ceramic filler (0.3 to 0.5μm) by 20%of total volume PEEK molecule Ceramic filler Adding ceramic filler improved the mechanical and physical properties of PEEK as follow
- 10. • The modulus of elasticity is 4GPa which is close to sponge bone which decrease shielding stresses between PEEK implant and surrounding bone. Elasticity comparison for bone/framework materials • BioHPP is suitable for patients with allergies because of its very low water solubility of < 0.3 mg/mmand its low reactivity to other materials so more color stability. Ceramic modified PEEK BioHPP (Bioactive High performance polymer)
- 11. • BioHPP has excellent stability, optimal polishing properties and low plaque affinity • It is extremely low in weight and have high abrasion resistance Zoidis P, and Papathanasiou l.The Use of a Modified Poly-Ether-Ether- Ketone (PEEK) as an Alternative Framework Material for Removable Dental Prostheses. A Clinical Report.Journal of Prosthodontics 0 (2015) 1–5,2015 Ceramic modified PEEK BioHPP (Bioactive High performance polymer)
- 12. • Crack resistance and biocompatibility • It is Radiolucent which allow accurate peri-implant bone evaluation Ceramic modified PEEK BioHPP (Bioactive High performance polymer)
- 13. PEEK as dental Implant Nano sized coated PEEK implant with hydroxyapatite particles Need improvement in properties
- 14. • PEEK material is bio- innert • PEEK material has low wet-ability which is very important in bioactivity with surrounding tissues which can be enhanced by UV exposure • PEEK has low modulus of elasticity Why we need to modify PEEK when used as implant
- 15. Rahmitasari F, Ishida Y, Kurahashi K, Matsuda T, Watanabe M and Ichikawa T. PEEK with Reinforced Materials and Modifications for Dental Im
- 16. Al2O2 Flouroapatite Ceramic Bio-HPP Carbon fibers Glass fibers Zr Hydroxyapatite TiO2 PEEK enhancement materials
- 17. PEEK Enhancement techniques Nano- structured surface Bioactive nano- composites electron beam deposition (Ti,TiO2) Plasma- spraying Spin-coating with nano-HAp Tio2/PEEK HAF/PEEK Plasma immersion ion implantation Plasma gas surface roughness
- 18. Nano- structured surface Spin-coating with nano-HAp PEEK Enhancement techniques (a) Spin-coating is a method for coating a thin layer of nanoscale hydroxyapatite on PEEK surface . In this process nano hydroxyapatite dissolved in organic solvents is slowly dropped onto the surface of an implant rotating at high speeds . Upon heat-treatment(300oC) a thin layer of (HAp) is formed on the implants.
- 19. Nano- structured surface PEEK Enhancement techniques Plasma-spraying ▪ Hydroxyapatite particles or titanium are sprayed onto the surface of an implant through a plasma torch. ▪ But High temperatures could damage PEEK structure due to its relatively low melting temperature (335°C) Plasma: is coating molten particles material (ceramic, metal, or polymers) on a surface with high velocity.
- 20. Nano- structured surface PEEK Enhancement techniques In this process, low-pressure gases (Oxygen, argon and ammonia) are used to introduce nano-level surface roughness on the surface of PEEK implants. This induces more hydrophilicity for a better material–tissue interaction . Plasma gas surface roughness
- 21. Nano- structured surface PEEK Enhancement techniques Plasma ion immersion implantation (Tio2) A substrate(PEEK) placed in plasma chamber contain plasma particles of (Tio2) connected to high voltage under vacuumed condition can get coated by a thin layer of the particles of that material.
- 22. Nano- structured surface PEEK Enhancement techniques • Involves decomposing and depositing a very thin, nano- rough layer of a material on a substrate by exposing the material to a beam of electrons. • It increase the hydrophilicity leading to enhanced cellular proliferation. electron beam deposition (Ti,TiO2)
- 23. PEEK Enhancement techniques Bioactive nano- composites Tio2/PEEK Nano-hydroxyapatite, Nano-hydroxyfluroapatite and Nano-titanium oxide particles can be incorporated to PEEK by melt-blending and compression molding techniques HAF/PEEK
- 24. PEEK applications and uses PEEK In Orthopedics and maxillofacial
- 25. PEEK applications and uses As a dental implant and implant abutment
- 26. Removable partial denture PEEK applications and uses
- 27. Orthodontic wires but increase gauge twice of NiTi PEEK applications and uses
- 28. Pediatric space maintainer PEEK applications and uses
- 29. Inserts for attachments instead of nylon and rubber PEEK applications and uses
- 30. Fixed detachable and fixed bridges PEEK applications and uses
- 31. BioHPP construction techniques CAD / CAM Injection molding tech. New 3D printed
- 32. CAD / CAM
- 35. PEEK CAD CAM blocks with different colors
- 36. New 3D printed Inject jet technique
- 39. Injection molding tech. Bredent BioHPP lost injection molding technique
- 40. Missing all upper teeth
- 41. Fixture level primary impression
- 45. Duralay bar sawed then splinted intraorally by using cold cured zero shrinkage composite
- 46. Final impression using open tray fixture level impression
- 47. Checking the passive fit of new duralay bar constructed after final impression
- 49. Wax try in to upper anterior teeth
- 51. Trial setting and mold formation Duplication with burnout resin Preparing the duplicate frame work and setting the artificial veneers and formation of silicon
- 53. Setting the veneer guided with the silicon mold Cementati on with Ti- base abutments Contourin g and finishing using colored flowable composite s
- 54. References Zoidis P, and Papathanasiou l.The Use of a Modified Poly-Ether-Ether-Ketone (PEEK) as an Alternative Framework Material for Removable Dental Prostheses. A Clinical Report.Journal of Prosthodontics 0 (2015) 1–5,2015. Rahmitasari F, Ishida Y, Kurahashi K, Matsuda T, Watanabe M and Ichikawa T. PEEK with Reinforced Materials and Modifications for Dental Im Johansson P, Jimbo R, Kozai Y, Sakurai T, Kjellin P, Currie F and Wennerberg A. Nanosized Hydroxyapatite Coating on PEEK Implants Enhances E Rahmitasari F, Ishida Y, Kurahashi K, Matsuda T, Watanabe Mand Ichikawa T.PEEK with Reinforced Materials and Modifications for Dental Imp BECHIR E, BECHIR A , GIOGA A, MANU R, BURCEA A,TEODORA DASCALU I. The Advantages of BioHPP Polymer as Superstructure Material in Oral Implantology. MATERIALE PLASTICE 53No.3 2016. Mohamed Mahmoud Abdul-Monem Abdul-Aziz. Dental Biomaterials assistant lecturer Spring 2018. POLYETHER-ETHER-KETONE (PEEK) APPLICATIONS IN CLINICAL DENTISTRY. Slideshare