Polyetherketoneketone (PEKK): An emerging biomaterial for oral implants and dental prostheses
Open accessAbstract
Polyetherketoneketone (PEKK) is a new evolving polymeric material. The present article comprehensively reviewed an overview of various applications of PEKK in prosthodontics and oral implantology, highlighting its prospects for clinical applications. PEKK biomaterials is an elastic material with good shock absorbance and fracture resistance and present ultra-high performance among all thermoplastic composites for excellent mechanical strength, chemical resistance, and high thermal stability. Available articles on PEKK for dental applications were reviewed from January 1957 to August 2020) using MEDLINE/PubMed, Web of Science, and ScienceDirect resources. PEKK presents suitable physical, mechanical, and chemical properties for applications in prosthodontics and oral implantology. PEKK has good potential for a wide range of dental applications, including tooth restorations, crowns, bridge, endoposts, denture framework, implant-supported fixed prosthesis, and dental implants. PEKK dental implants have shown lesser stress shielding compared to titanium for dental implant applications. Further modifications and improving material properties can result in broader applications in the field of dentistry. Long term evaluations are needed as PEKK is recently applied in dentistry, and there are limited studies published on PEKK.
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PEKK offers superior thermal stability with a higher glass transition temperature (Tg) at around 162°C, in contrast to PEEK's Tg of about 143°C.
“PEKK offers superior thermal stability, boasting a higher glass transition temperature (Tg) at around 162 ◦ C in contrast to PEEK, with a Tg of about 143 ◦ C.”
From A comprehensive review of lunar-based manufacturing and construction (2024) · cites this paper as [216]
The Structure and synthesis of PEKK section (page unavailable) says PEKK’s additional ketone group increases its glass-transition temperature relative to PEEK. The copy does not give Tg values of approximately 162°C and 143°C; Table 2 in Physical and mechanical properties lists melting temperatures, not glass-transition temperatures. (LLM, conf=0.86)
Experimental — accuracy not yet measuredPEKK has a lower melt viscosity, making it easier to work with during printing, and its printing temperature is slightly lower than that of PEEK.
“Additionally, PEKK has a lower melt viscosity, making it easier to work with during printing. Furthermore, the printing temperature of PEKK is slightly lower than that of PEEK.”
From A comprehensive review of lunar-based manufacturing and construction (2024) · cites this paper as [216]
The Structure and synthesis section says one PEKK formulation melts at 305 °C versus 360 °C for a specified PEEK formulation, which offers limited support for a lower-temperature comparison. It does not give printing temperatures or compare melt viscosities, and Table 2 in Physical and mechanical properties lists a higher melting-temperature range for PEKK than for PEEK. Page numbers are unavailable in our copy. (LLM, conf=0.75)
Experimental — accuracy not yet measuredPEKK features an additional ketone group in its chemical structure compared to PEEK.
“In comparison to PEEK, PEKK features an additional ketone group in its chemical structure.”
From A comprehensive review of lunar-based manufacturing and construction (2024) · cites this paper as [216]
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A comprehensive review of lunar-based manufacturing and construction
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- Authors
- Alqurashi, H., Khurshid, Z., Syed, A. U. Y., Rashid Habib, S., Rokaya, D., & Zafar, M. S.
- Affiliations
- King Faisal University (SA)
- Walailak University (TH)
- Riphah International University (PK)
- Corresponding author
- Rokaya, Dinesh
- Zafar, Muhammad Sohail
- Venue
- Journal of Advanced Research
- Publisher
- Elsevier BV
- Published
- 2021-02
- Volume
- 28
- Pages
- 87-95
- ISSN
- 2090-1224 (ISSN-L)
- 2090-1232
- PMC
- PMC7770505
- OpenAlex
- W3087620040
- Cited by
- 300
- References
- 76
- Citations by year
- 2026: 33 · 2025: 62 · 2024: 62 · 2023: 58 · 2022: 57 · 2021: 25 · 2020: 2 · 2015: 1
- FWCI
- 8.62
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Journal of Advanced Research (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (acceptedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Greater South Information System
- Topics
- Health Sciences › Dentistry › Orthodontics › Dental materials and restorations
- Health Sciences › Dentistry › Oral Surgery › Dental Implant Techniques and Outcomes
- Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
- Keywords
- PEKK, dental implants, prosthodontics, thermoplastic composites, stress shielding, implant-supported fixed prosthesis, denture framework, dental restorations, mechanical properties, chemical resistance, thermal stability
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