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Assessment of Surface Roughness and Wettability of Hafnium Oxide Coated Titanium Discs: An In-vitro Analysis.

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Titel: Assessment of Surface Roughness and Wettability of Hafnium Oxide Coated Titanium Discs: An In-vitro Analysis.
Autoren: SINGH, MEGHAN RANJAN, RAJARAMAN, VAISHNAVI, ARIGA, PADMA, SEKARAN, SARAVANAN
Quelle: Journal of Clinical & Diagnostic Research; Dec2025, Vol. 19 Issue 12, p17-21, 5p
Schlagwörter: SURFACE roughness, HAFNIUM oxide, METALS in surgery, OSSEOINTEGRATION, ATOMIC force microscopy, CONTACT angle, WETTING, IN vitro studies
Abstract: ntroduction: Surface modifications of titanium implants play a crucial role in enhancing their performance, particularly in terms of surface roughness and wettability, which directly influence osseointegration and biological responses. Hafnium Oxide (HfO2 ) coatings are emerging as potential surface modifiers due to their unique physicochemical properties. Aim: The aim of the present study was to evaluate and compare the surface roughness and wettability of uncoated titanium discs and hafnium oxide coated titanium discs using Atomic Force Microscopy (AFM) and contact angle goniometry. Materials and Methods: The present in-vitro study was conducted in the Department of Prosthodontics, Saveetha Dental College and Hospitals, Chennai, India, between March 2024 and June 2024. Twenty titanium discs were divided into two groups: uncoated Ti (Group A) and hafnium oxide coated Ti (Group B). Surface roughness parameters (Ra, Rq, Rm) were evaluated using AFM and wettability was assessed by static contact angle goniometry. Data were analysed with the ShapiroWilk test for normality and independent samples t-tests for intergroup comparison. Results: AFM analysis revealed that the hafnium oxide coated titanium discs (group B) exhibited significantly higher surface roughness (Ra: 62.19 nm; Rq: 78.123 nm) compared to the uncoated titanium discs (group A) (Ra: 37.762 nm; Rq: 49.261 nm) (p<0.05). Contact angle measurements indicated that group B had substantially higher contact angles (average: 86.56°) compared to group A (average: 41.42°) (p=0.018), suggesting reduced surface wettability following HfO2 coating. Conclusion: Hafnium oxide coating on titanium discs significantly increases surface roughness while decreasing surface wettability. These surface modifications could potentially influence the biological behaviour of titanium-based implants. [ABSTRACT FROM AUTHOR]
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Datenbank: Complementary Index
Beschreibung
Abstract:ntroduction: Surface modifications of titanium implants play a crucial role in enhancing their performance, particularly in terms of surface roughness and wettability, which directly influence osseointegration and biological responses. Hafnium Oxide (HfO2 ) coatings are emerging as potential surface modifiers due to their unique physicochemical properties. Aim: The aim of the present study was to evaluate and compare the surface roughness and wettability of uncoated titanium discs and hafnium oxide coated titanium discs using Atomic Force Microscopy (AFM) and contact angle goniometry. Materials and Methods: The present in-vitro study was conducted in the Department of Prosthodontics, Saveetha Dental College and Hospitals, Chennai, India, between March 2024 and June 2024. Twenty titanium discs were divided into two groups: uncoated Ti (Group A) and hafnium oxide coated Ti (Group B). Surface roughness parameters (Ra, Rq, Rm) were evaluated using AFM and wettability was assessed by static contact angle goniometry. Data were analysed with the ShapiroWilk test for normality and independent samples t-tests for intergroup comparison. Results: AFM analysis revealed that the hafnium oxide coated titanium discs (group B) exhibited significantly higher surface roughness (Ra: 62.19 nm; Rq: 78.123 nm) compared to the uncoated titanium discs (group A) (Ra: 37.762 nm; Rq: 49.261 nm) (p<0.05). Contact angle measurements indicated that group B had substantially higher contact angles (average: 86.56°) compared to group A (average: 41.42°) (p=0.018), suggesting reduced surface wettability following HfO2 coating. Conclusion: Hafnium oxide coating on titanium discs significantly increases surface roughness while decreasing surface wettability. These surface modifications could potentially influence the biological behaviour of titanium-based implants. [ABSTRACT FROM AUTHOR]
ISSN:0973709X
DOI:10.7860/JCDR/2025/81774.22078