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Published on: August 15, 2016
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Surface modification affects human gingival epithelial cell behavior on polyetheretherketone surfaces.
Keiju Omatsu1, Isao Yamawaki1, Yoichiro Taguchi1
1Department of Periodontology, School of Dentistry, Osaka Dental University.
Dental Materials Journal
|January 21, 2024
Summary
Surface modifications to Polyetheretherketone (PEEK) improve gingival epithelial cell attachment, crucial for preventing peri-implantitis. Treatments enhance cell activity on PEEK, a titanium alternative for implant abutments.
Area of Science:
- Biomaterials Science
- Dental Implantology
- Tissue Engineering
Background:
- Gingival epithelial attachment to implant abutments is vital for preventing peri-implantitis.
- Polyetheretherketone (PEEK) is a promising alternative to titanium for implant abutments but is biologically inert, hindering soft tissue sealing.
- Surface modification of PEEK is necessary to improve its biocompatibility and promote cellular integration.
Purpose of the Study:
- To investigate the effects of surface treatments on Polyetheretherketone (PEEK) to enhance gingival epithelial cell attachment.
- To evaluate the biological response of human gingival epithelial cells to modified PEEK surfaces.
- To determine if surface modifications affect the mechanical properties of PEEK.
Main Methods:
- Polyetheretherketone (PEEK) surfaces were modified using ultraviolet (UV) irradiation, argon plasma irradiation, and buffing.
- Mechanical strength, surface morphology, and elemental composition of treated PEEK were analyzed.
- Human gingival epithelial cell adhesion, proliferation, and expression of integrin β4 and laminin 332 were assessed on modified PEEK surfaces.
Main Results:
- Surface treatments did not compromise the mechanical strength or significantly alter the surface morphology of PEEK.
- All treatments increased surface oxygen content and wettability.
- Human gingival epithelial cell adhesion, proliferation, and expression of key adhesion proteins (integrin β4, laminin 332) were significantly enhanced on modified PEEK surfaces.
Conclusions:
- Surface modification of PEEK using UV irradiation, argon plasma, or buffing enhances its biological properties.
- These modifications promote gingival epithelial cell activity, suggesting improved potential for soft tissue sealing around PEEK implant abutments.
- Modified PEEK shows potential as a biocompatible material for dental implant abutments, aiding in peri-implantitis prevention.
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