Details der Publikation - Microbial adhesion on novel yttria-stabilized tetragonal zirconia (Y-TZP) implant surfaces with nitrogen-doped hydrogenated amorphous carbon (a-C:H:N) coatings

Microbial adhesion on novel yttria-stabilized tetragonal zirconia (Y-TZP) implant surfaces with nitrogen-doped hydrogenated amorphous carbon (a-C:H:N) coatings

Objectives Biomaterial surfaces are at high risk for initial microbial colonization, persistence, and concomitant infection. The rationale of this study was to assess the initial adhesion on novel implant surfaces of Enterococcus faecalis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans upon incubation. Materials and methods The tested samples were 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) samples with nitrogen-doped hydrogenated amorphous carbon (a-C:H:N) coating (A) and 3Y-TZP samples coated with ceria-stabilized zirconia-based (Ce-TZP) composite and a-C:H:N (B). Uncoated 3Y-TZP samples (C) and bovine enamel slabs (BES) served as controls. Once the surface was characterized, the adherent microorganisms were quantified by estimating the colony-forming units (CFUs). Microbial vitality was assessed by live/dead staining, and microbial-biomaterial surface topography was visualized by scanning electron microscopy (SEM). Results Overall, A and B presented the lowest CFU values for all microorganisms, while C sheltered significantly less E. faecalis, P. aeruginosa, and C. albicans than BES. Compared to the controls, B demonstrated the lowest vitality values for E. coli (54.12 %) and C. albicans (67.99 %). Interestingly, A (29.24 %) exhibited higher eradication rates for S. aureus than B (13.95 %). Conclusions Within the limitations of this study, a-C:H:N-coated 3Y-TZP surfaces tended to harbor less initially adherent microorganisms and selectively interfered with their vitality. Clinical relevance This could enable further investigation of the new multi-functional zirconia surfaces to confirm their favorable antimicrobial properties in vivo..

Medienart:	E-Artikel

Erscheinungsjahr:	2015
Erschienen:	2015

Enthalten in:	Zur Gesamtaufnahme - volume:20
Enthalten in:	Clinical oral investigations - 20(2015), 7 vom: 27. Nov., Seite 1719-1732

Sprache:	Englisch

Beteiligte Personen:	Schienle, Stefanie [VerfasserIn] Al-Ahmad, Ali [VerfasserIn] Kohal, Ralf Joachim [VerfasserIn] Bernsmann, Falk [VerfasserIn] Adolfsson, Erik [VerfasserIn] Montanaro, Laura [VerfasserIn] Palmero, Paola [VerfasserIn] Fürderer, Tobias [VerfasserIn] Chevalier, Jérôme [VerfasserIn] Hellwig, Elmar [VerfasserIn] Karygianni, Lamprini [VerfasserIn]

Links:	Volltext [lizenzpflichtig]

BKL:	44.96$jZahnmedizin
Themen:	3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) Colony-forming units (CFUs) Initial microbial adhesion Live/dead staining Nitrogen-doped hydrogenated amorphous carbon (a-C:H:N)

RVK:	RVK Klassifikation ELIB24

Anmerkungen:	© Springer-Verlag Berlin Heidelberg 2015

doi:	10.1007/s00784-015-1655-5

funding:
Förderinstitution / Projekttitel:

PPN (Katalog-ID):	OLC2108470816

Internformat


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520			\|a Objectives Biomaterial surfaces are at high risk for initial microbial colonization, persistence, and concomitant infection. The rationale of this study was to assess the initial adhesion on novel implant surfaces of Enterococcus faecalis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans upon incubation. Materials and methods The tested samples were 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) samples with nitrogen-doped hydrogenated amorphous carbon (a-C:H:N) coating (A) and 3Y-TZP samples coated with ceria-stabilized zirconia-based (Ce-TZP) composite and a-C:H:N (B). Uncoated 3Y-TZP samples (C) and bovine enamel slabs (BES) served as controls. Once the surface was characterized, the adherent microorganisms were quantified by estimating the colony-forming units (CFUs). Microbial vitality was assessed by live/dead staining, and microbial-biomaterial surface topography was visualized by scanning electron microscopy (SEM). Results Overall, A and B presented the lowest CFU values for all microorganisms, while C sheltered significantly less E. faecalis, P. aeruginosa, and C. albicans than BES. Compared to the controls, B demonstrated the lowest vitality values for E. coli (54.12 %) and C. albicans (67.99 %). Interestingly, A (29.24 %) exhibited higher eradication rates for S. aureus than B (13.95 %). Conclusions Within the limitations of this study, a-C:H:N-coated 3Y-TZP surfaces tended to harbor less initially adherent microorganisms and selectively interfered with their vitality. Clinical relevance This could enable further investigation of the new multi-functional zirconia surfaces to confirm their favorable antimicrobial properties in vivo.
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700	1		\|a Al-Ahmad, Ali \|4 aut
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700	1		\|a Montanaro, Laura \|4 aut
700	1		\|a Palmero, Paola \|4 aut
700	1		\|a Fürderer, Tobias \|4 aut
700	1		\|a Chevalier, Jérôme \|4 aut
700	1		\|a Hellwig, Elmar \|4 aut
700	1		\|a Karygianni, Lamprini \|4 aut
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Microbial adhesion on novel yttria-stabilized tetragonal zirconia (Y-TZP) implant surfaces with nitrogen-doped hydrogenated amorphous carbon (a-C:H:N) coatings

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