liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Astra Tech and Brånemark system implants: A 5-year prospective study of marginal bone reactions
Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Dental Clinic.
Show others and affiliations
2004 (English)In: Clinical Oral Implants Research, ISSN 0905-7161, Vol. 15, no 4, 413-420 p.Article in journal (Refereed) Published
Abstract [en]

This paper describes the 5-year results of a comparative study between Astra Tech and Brånemark system implants. The aim was to compare the systems primarily with regard to bone level changes, and also with regard to other variables of interest. Sixty-six patients with edentulous jaws were included in the study. Randomisation schedules were used to allocate the patients to the two implant systems. 184 Astra Tech implants with a titanium-blasted surface and 187 Brånemark implants with a turned surface were used. The implants were inserted with a two-stage technique and the insertion followed the routines for the respective implant system. All patients were provided with full-arch fixed bridges. All patients were followed up with clinical and radiographic examinations from fixture insertion to the 5-year follow-up. The total mean bone level change in the upper jaw between fixture insertion and the 5-year examination was - 1.74±0.45 mm at the Astra implants and - 1.98±0.21 at the Brånemark implants. The corresponding values for the lower jaw were - 1.06±0.19 for Astra and - 1.38±0.17 for Brånemark. The major postoperative changes of the marginal bone level took place between fixture insertion and baseline. During this period, there was also a different pattern of bone remodelling between the implant systems. Between baseline (prosthesis connection) and the 5-year examination, the marginal bone level changes were small, with no difference between the implant systems. The implant stability was examined with the supraconstructions removed. At the 5-year examination, the survival rate for Astra Tech implants was 98.4% and for the Brånemark implants it was 94.6%. The difference was not statistically significant.

Place, publisher, year, edition, pages
2004. Vol. 15, no 4, 413-420 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-24738DOI: 10.1111/j.1600-0501.2004.01028.xLocal ID: 6989OAI: diva2:245061
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2011-01-12

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Åstrand, PerFeldmann, Hartmut
By organisation
Faculty of Health SciencesDental Clinic
In the same journal
Clinical Oral Implants Research
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 26 hits
ReferencesLink to record
Permanent link

Direct link