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Osseointegration of fiber-reinforced composite implants: Histological and ultrastructural observations
University of British Columbia, Canada; College of Dentistry at King Saud University, Saudi Arabia.
Gazi University, Turkey.
Gazi University, Turkey.
University of Turku, Finland.
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2014 (English)In: Dental Materials, ISSN 0109-5641, E-ISSN 1879-0097, Vol. 30, no 12, p. e384-e395Article in journal (Refereed) Published
Abstract [en]

Objectives. The aim of this study was to evaluate the bone tissue response to fiber-reinforced composite (FRC) in comparison with titanium (Ti) implants after 12 weeks of implantation in cancellous bone using histomorphometric and ultrastructural analysis. Materials and methods. Thirty grit-blasted cylindrical FRC implants with BisGMA-TEGDMA polymer matrix were fabricated and divided into three groups: (1) 60 s light-cured FRC (FRC-L group), (2) 24 h polymerized FRC (FRC group), and (3) bioactive glass FRC (FRC-BAG group). Titanium implants were used as a control group. The surface analyses were performed with scanning electron microscopy and 3D SEM. The bone-implant contact (BIC) and bone area (BA) were determined using histomorphometry and SEM. Transmission electron microscopy (TEM) was performed on Focused Ion Beam prepared samples of the intact bone-implant interface. Results. The FRC, FRC-BAG and Ti implants were integrated into host bone. In contrast, FRC-L implants had a consistent fibrous capsule around the circumference of the entire implant separating the implant from direct bone contact. The highest values of BIC were obtained with FRC-BAG (58 ± 11%) and Ti implants (54 ± 13%), followed by FRC implants (48 ± 10%), but no significant differences in BIC or BA were observed (p = 0.07, p = 0.06, respectively). TEM images showed a direct contact between nanocrystalline hydroxyapatite of bone andboth FRC and FRC-BAG surfaces. Conclusion. Fiber-reinforced composite implants are capable of establishing a close bone contact comparable with the osseointegration of titanium implants having similar surface roughness.

Place, publisher, year, edition, pages
2014. Vol. 30, no 12, p. e384-e395
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Natural Sciences
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URN: urn:nbn:se:ri:diva-6753DOI: 10.1016/j.dental.2014.08.361Scopus ID: 2-s2.0-84912116905Local ID: 23787OAI: oai:DiVA.org:ri-6753DiVA, id: diva2:964593
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2020-12-01Bibliographically approved

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Lausmaa, Jukka

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SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo)SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf)
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