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Early healing of implants placed into fresh extraction sockets: an experimental study in the beagle dog. De novo bone formation
Örebro University, Department of Clinical Medicine. (käkkirurgiska forskn.enheten)
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2009 (English)In: Journal of Clinical Periodontology, ISSN 0303-6979, E-ISSN 1600-051X, Vol. 36, no 3, p. 265-277Article in journal (Refereed) Published
Abstract [en]

Objectives: Describe the early phases of tissue integration in implants placed into fresh extraction sockets and test whether a new implant surface nano-topography (DCD nano-particles, Nanotite) promotes early osseointegration when compared with minimally rough surface implants (DAE, Osseotite®).

Material and Methods: Sixteen beagle dogs received 64 test and control implants randomly installed into the distal socket of 3P3 and 4P4. Histomorphometric analysis of bone to implant contact (BIC) and bone area was performed at 4 h, 1, 2, 4 and 8 weeks.

Results: Wound healing initiated with a coagulum that was substituted by a provisional matrix at 1 week. Bone formation started concomitant to a marked bone resorption. At 2 weeks, woven bone formation was evident and gradually remodelled into lamellar bone at 4 and 8 weeks. BIC increased similarly throughout the study in both groups with a tendency to higher percentages for the test devices at 2 and 4 weeks. The influence of the DCD nano-particles was more evident at the fourth premolar site.

Conclusion: Osseointegration occurred similarly at both implant groups, although the socket dimension appeared to influence bone healing. It is suggested that the enhanced nano-topography has a limited effect in the immediate implant surgical protocol.

Place, publisher, year, edition, pages
Oxford: Blackwell , 2009. Vol. 36, no 3, p. 265-277
National Category
Medical and Health Sciences Surgery Surgery
Research subject
Surgery
Identifiers
URN: urn:nbn:se:oru:diva-3868DOI: 10.1111/j.1600-051X.2008.01363.xISI: 000263301500011PubMedID: 19236539Scopus ID: 2-s2.0-60249101795OAI: oai:DiVA.org:oru-3868DiVA, id: diva2:138167
Available from: 2009-01-21 Created: 2009-01-21 Last updated: 2017-12-14Bibliographically approved

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Johansson, Carina B.

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CiteExportLink to record
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