Astra Tech and Brånemark system implants: a 5-year prospective study of marginal bone reactions

Clinical Oral Implants Research
Per AstrandHartmut Feldmann

Abstract

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, ...Continue Reading

References

Dec 1, 1981·International Journal of Oral Surgery·R AdellP I Brånemark
Feb 13, 2001·Clinical Oral Implants Research·D van SteenbergheI Naert
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Citations

Jul 31, 2012·Lasers in Medical Science·Erika O AlmeidaPaulo G Coelho
Sep 11, 2008·The Journal of Oral Implantology·Azfar A SiddiquiI-Chung Wang
Sep 1, 2007·Journal of Periodontology·Jan CosynTim De Rouck
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Oct 28, 2010·Clinical Implant Dentistry and Related Research·Stefan VandewegheHugo De Bruyn
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Apr 4, 2008·Clinical Implant Dentistry and Related Research·Solweig Sundén Pikner, Kerstin Gröndahl
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Aug 12, 2009·Clinical Oral Implants Research·Ingemar Abrahamsson, Tord Berglundh
Aug 22, 2006·Clinical Implant Dentistry and Related Research·Ingemar Abrahamsson, Tord Berglundh
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May 18, 2012·Clinical Oral Implants Research·Christoph ArnhartWerner Zechner
May 15, 2009·Clinical Implant Dentistry and Related Research·Piero BalleriMario Veltri

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