A1 Refereed original research article in a scientific journal

A novel dual surface modification on titanium in dental use: Characterization and topography




AuthorsZakir Muhammad, Laiho Taina, Granroth Sari, Kukk Edwin, Chu Chun Hung, Tsoi James Kit-Hon, Matinlinna Jukka Pekka

PublisherWILEY

Publication year2022

JournalSurface and Interface Analysis

Journal name in sourceSURFACE AND INTERFACE ANALYSIS

Journal acronymSURF INTERFACE ANAL

Volume54

Issue7

First page 747

Last page758

Number of pages12

ISSN0142-2421

eISSN1096-9918

DOIhttps://doi.org/10.1002/sia.7087(external)

Web address https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/sia.7087(external)


Abstract
This laboratory study aimed to compare, contrast, and evaluate the effect of a novel dual surface modification method on the adhesion strength of resin composite cement to titanium. C.p.-2 grade titanium samples were silica-coated, etched with HNO3(69vol %) or a blend of HCl (35vol %) and H3PO4 (85vol %), for 1 h at 80 degrees C. Surface roughness was measured by surface roughness profilometry, topographic analysis by scanning electron microscopy (SEM), atomic force microscopy (AFM), and surface analyses by energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS). Silanization of all specimens was carried out after SEM, EDX, and AFM analysis, before enclosed mold microshear bond strength testing (EM-mu SBS). Adhesion strengths were measured after artificial ageing: 1 day, 1 week, 4 weeks, and 8 weeks by EM-mu SBS testing and failure mode analysis by optical microscopy. Polished titanium was used as a control. The highest surface roughness was observed in titanium samples treated with silica-coating + HCl-H3PO4 etching. The elemental composition confirmed the presence of Ti, O, C, with Si and Al in samples treated with silica-coating. A gradual decrease in EM-mu SBS values was observed in all titanium samples with adhesive and cohesive failure modes. The novel dual surface modification method applied in this study suggests that silica-coating + HCl-H(3)PO(4)etching strongly affects titanium surface topography and roughness. The presence of Si on silica-coated surface modified titanium before silanization with an experimental silane has a positive effect on the EM-mu SBS of titanium samples treated with silica-coating only or silica-coating + HNO3 etching.



Last updated on 2024-26-11 at 23:40