Nanostructures and hydrophilicity influence osseointegration: a biomechanical study in the rabbit tibia

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Wennerberg, AnnMalmö högskola,Odontologiska fakulteten (OD) (författare)

Nanostructures and hydrophilicity influence osseointegration : a biomechanical study in the rabbit tibia

Artikel/kapitelEngelska2014

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2013-06-19
Wiley-Blackwell,2014
electronicrdacarrier

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LIBRIS-ID:oai:DiVA.org:mau-39262
https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-39262URI
https://doi.org/10.1111/clr.12213DOI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:art swepub-publicationtype

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ObjectiveImplant surface properties have long been identified as an important factor to promote osseointegration. The importance of nanostructures and hydrophilicity has recently been discussed. The aim of this study was to investigate how nanostructures and wettability influence osseointegration and to identify whether the wettability, the nanostructure or both in combination play the key role in improved osseointegration. Materials and MethodsTwenty-six adult rabbits each received two Ti grade 4 discs in each tibia. Four different types of surface modifications with different wettability and nanostructures were prepared: hydrophobic without nanostructures (SLA), with nanostructures (SLAnano); hydrophilic with two different nanostructure densities (low density: pmodSLA, high density: SLActive). All four groups were intended to have similar chemistry and microroughness. The surfaces were evaluated with contact angle measurements, X-ray photoelectron spectroscopy, scanning electron microscopy, atomic force microscopy and interferometry. After 4 and 8weeks healing time, pull-out tests were performed. ResultsSLA and SLAnano were hydrophobic, whereas SLActive and pmodSLA were super-hydrophilic. No nanostructures were present on the SLA surface, but the three other surface modifications clearly showed the presence of nanostructures, although more sparsely distributed on pmodSLA. The hydrophobic samples showed higher carbon contamination levels compared with the hydrophilic samples. After 4weeks healing time, SLActive implants showed the highest pull-out values, with significantly higher pull-out force than SLA and SLAnano. After 8weeks, the SLActive implants had the highest pull-out force, significantly higher than SLAnano and SLA. ConclusionsThe strongest bone response was achieved with a combination of wettability and the presence of nanostructures (SLActive).

Ämnesord och genrebeteckningar

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Odontologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Dentistry hsv//eng
bone healing
hydrophilicity
hydrophobicity
implants
nanostructures

Biuppslag (personer, institutioner, konferenser, titlar ...)

Jimbo, RyoMalmö högskola,Odontologiska fakulteten (OD)(Swepub:mau)odryji (författare)
Stuebinger, Stefan (författare)
Obrecht, Marcel (författare)
Dard, Michel (författare)
Berner, Simon (författare)
Malmö högskolaOdontologiska fakulteten (OD) (creator_code:org_t)

Sammanhörande titlar

Ingår i:Clinical Oral Implants Research: Wiley-Blackwell25:9, s. 1041-10500905-71611600-0501

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Clinical Oral Implants Research (Sök värdpublikationen i LIBRIS)

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Av författaren/redakt...: Wennerberg, Ann; Jimbo, Ryo; Stuebinger, Stef ...; Obrecht, Marcel; Dard, Michel; Berner, Simon

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Odontologi

Artiklar i publikationen: Clinical Oral Im ...

Av lärosätet: Malmö universitet

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