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The impact of surface roughness and permeability in hydroxyapatite bone regeneration membranes
University Malmö.
University Malmö.
Region Halland.
RISE - Research Institutes of Sweden, Swerea, Swerea IVF.ORCID iD: 0000-0003-4860-8763
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2015 (English)In: Clinical Oral Implants Research, ISSN 0905-7161, E-ISSN 1600-0501Article in journal (Refereed) Published
Abstract [en]

Background: One of the crucial aspects in guided bone regeneration is the space maintenance. This is normally created by a membrane, which should primarily be accepted by the surrounding tissues without causing any adverse reactions. The impact of surface topography, biological acceptance as well as permeability of these membranes has been carefully discussed in the literature. Purpose: The purpose of this study was to evaluate histologically the bone forming properties inside of hollow hydroxyapatite space-maintaining devices with different inner surfaces and different permeabilities in an animal calvaria model in vivo. Materials and methods: A total of 36 hollow domes with three different designs made of hydroxyapatite were surgically attached to the skulls of rabbits. Group 1 had a moderately rough inner surface. Group 2 had a smooth inner surface. Group 3 had the same properties as Group 1 but had macroscopic holes on the top. The domes were left to heal for 12 weeks and were then processed for undecalcified ground sectioning. Histological evaluations were performed using a light microscope and scanning electron microscopy. The bone-implant contact (BIC) percentage along the device was calculated. Results: The median percentage of BIC was higher for Group 1 compared with Group 2 (P = 0.004). Group 1 produced a larger median BIC compared with Group 3 (P < 0.0001). Conclusions: Within the limits of this preclinical study, these findings suggest that a moderately rough inner surface of a ceramic membrane along with a non-permeable device produces more bone than a smooth inner surface. © 2015 John Wiley & Sons A/S.

Place, publisher, year, edition, pages
Blackwell Munksgaard , 2015.
Keywords [en]
Animal experiments, Biomaterials, Bone regeneration, Guided tissue regeneration, Surface chemistry
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13300DOI: 10.1111/clr.12717Scopus ID: 2-s2.0-84946206475OAI: oai:DiVA.org:ri-13300DiVA, id: diva2:973506
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2017-08-09Bibliographically approved

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Publisher's full textScopushttp://onlinelibrary.wiley.com/doi/10.1111/clr.12717/abstract

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