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Surface‐conditioned dental implants: an animal study on bone formation
Author(s) -
Stadlinger Bernd,
Lode Anna Theresa,
Eckelt Uwe,
Range Ursula,
Schlottig Falko,
Hefti Thomas,
Mai Ronald
Publication year - 2009
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.2009.01466.x
Subject(s) - dentistry , implant , mandible (arthropod mouthpart) , osseointegration , quadrant (abdomen) , bone formation , animal study , medicine , osteoid , chemistry , surgery , biology , botany , genus
Aim: The aim of this study was to determine whether bone formation around surface‐conditioned implants is enhanced compared with non‐surface‐conditioned sandblasted acid‐etched titanium implants. Materials and Methods: One hundred and forty‐four implants were placed in the mandible of 18 minipigs. Before placement, implants were either surface conditioned in a solution containing hydroxide ions (conSF) or assigned to controls. Animals were euthanized after 2, 4 and 8 weeks of submerged healing, the 8‐week group receiving polyfluorochrome labelling at week 2, 4, 6 and 8. One jaw quadrant per animal was selected for histological and histomorphometrical evaluation of mineralized bone–implant contact (mBIC), osteoid–implant contact (OIC) and bone volume (BV) analysis. Results: Polyfluorochrome labelling showed no general differences in bone dynamics. mBIC showed the most pronounced differences after 2 weeks, reaching 65.5% for conSF compared with 48.1% for controls, p =0.270. Differences levelled out after 4 weeks (67.4% control, 65.7% conSF) and 8 weeks (64.0% control, 70.2% conSF). OIC levels were initially comparable, showing a slower decline for conSF after 4 weeks. BV was higher for conSF at all times. No significant differences could be found. Conclusion: A tendency towards increased mBIC was shown for surface‐conditioned implants after short‐term healing.