| A Multifunctional HA/ZrO2/SiO2 Nanocomposite Ceramic Coatings for Dental Implants: Improved Osseointegration and Corrosion Resistance |
Fabiola Jemmie Shilparani Fredrick,a Aruljothi Kandasamy Nagarajanb
, Hari Raj Kumarc , and Gnanavel Sadasivama,*
Pages : 235-246
DOI:10.1080/0371750X.2026.2704839
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| Abstract |
| Periodontal implant materials must exhibit adequate bioactivity, corrosion resistance
and compatibility with the aggressive oral environment to ensure long-term
performance. Traditional implant materials, such as titanium alloys and stainless steel,
provide good mechanical strength but possess limited surface bioactivity. In this study,
zirconia-based nanocomposite (NC) ceramic coatings were developed to enhance
the surface properties of Ti6Al4V (PT) and AISI 316L (PS) implant alloys. PT and PS
surfaces were functionalized using distinct coatings: HA/ZrO2
/SiO2
NC deposited via
electrophoretic deposition and dip coating techniques. Comprehensive structural and
surface analyses using XRD, FTIR and SEM-EDS confirmed uniform deposition and
phase integration of the NC layer. Electrochemical studies revealed a significant
reduction in corrosion rates, particularly for NC-coated PT in both simulated body
fluid and artificial saliva, suggesting improved long-term durability. Contact angle
measurements revealed enhanced hydrophilicity, and EDX analysis after immersion
revealed increased calcium and phosphorus deposition on the coated surfaces,
indicating sustained apatite formation; the increased mineral deposition suggests
enhanced interfacial mineralization and coating stability under simulated physiological
conditions. Cell viability assays showed improved osteoblast proliferation, with NC-
coated PT yielding the highest response (123±4.93%). Collectively, these findings
indicate that NC-coated PT promotes mineralized tissue integration while providing
improved corrosion resistance and cytocompatibility, highlighting its potential for
durable long-term dental implant applications. |
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