POS8-0551
Poly(tannic acid) Coatings for Enhanced Osseointegration of Dental Implants
Topic
S8. Frontiers of Functional Polymers in Biology and Medicine
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
Hwain Myeong (Pusan National University)
Co-Author(s)
Abstract
The demand for dental implants has increased with the aging population. Titanium and zirconia are established dental implant materials with excellent clinical performance. While titanium remains the clinical gold standard, zirconia has gained attention due to its biocompatibility and esthetic advantages, particularly in esthetically demanding cases. However, advanced surface functionalization strategies are still required to achieve biological performance comparable to that of titanium implants. Various surface treatments, including acid etching, plasma treatment, and ozone activation, have been employed to improve implant–bone interactions (osseointegration), but their effects are often limited by poor long-term stability and material-dependent applicability.
Polyphenol-based coatings have emerged as promising bioinspired surface engineering strategies owing to their adhesion on universal substrates and biological functionality. Among them, tannic acid is a cost-effective natural polyphenol with antioxidant and antibacterial properties. Through formaldehyde-mediated crosslinking polymerization, tannic acid can be converted into poly(tannic acid) (pTA), forming stable coatings on diverse substrates.
Herein, we propose a pTA coating strategy for titanium and zirconia dental implants. The broad substrate applicability of pTA enables a single coating platform for both metallic and ceramic implant materials, overcoming the limitations of conventional material-specific surface treatments. Furthermore, the antioxidant and antibacterial properties of pTA may provide a favorable peri-implant microenvironment for bone regeneration and osseointegration. Collectively, pTA coatings represent a simple, cost-effective, and environmentally benign approach for developing next-generation bioactive dental implants.
Polyphenol-based coatings have emerged as promising bioinspired surface engineering strategies owing to their adhesion on universal substrates and biological functionality. Among them, tannic acid is a cost-effective natural polyphenol with antioxidant and antibacterial properties. Through formaldehyde-mediated crosslinking polymerization, tannic acid can be converted into poly(tannic acid) (pTA), forming stable coatings on diverse substrates.
Herein, we propose a pTA coating strategy for titanium and zirconia dental implants. The broad substrate applicability of pTA enables a single coating platform for both metallic and ceramic implant materials, overcoming the limitations of conventional material-specific surface treatments. Furthermore, the antioxidant and antibacterial properties of pTA may provide a favorable peri-implant microenvironment for bone regeneration and osseointegration. Collectively, pTA coatings represent a simple, cost-effective, and environmentally benign approach for developing next-generation bioactive dental implants.
