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Resonanzfrequenz‐Analyse und Klopfdämpfungsverfahren. Teil 1: in vitro Reliabilitätsuntersuchungen und Methodenvergleich für die Bestimmung der Primärstabilität dentaler Implantate
Author(s) -
Lachmann Stefan,
Jäger Berthold,
Axmann Detlef,
GomezRoman German,
Groten Martin,
Weber Heiner
Publication year - 2006
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2005.01173.x
Subject(s) - resonance frequency analysis , implant , materials science , osseointegration , transducer , biomedical engineering , dentistry , reduction (mathematics) , orthodontics , medicine , acoustics , mathematics , surgery , physics , geometry
Objectives: The aims of this in vitro study were to evaluate reliability of the Osstell ™ and Periotest ™ devices in the assessment of implant stability and to perform a method comparison. Material and methods: Commercial dental implants were inserted into bovine rib segments of different anatomical origins and densities. Repeated measurements were performed, varying (a) the torque‐in force of the devices' attachment screw (the Osstell ™ transducer and the ball attachment, insert for the Periotest ™ device), (b) the insertion site bone quality, and (c) the thread exposure in simulated peri‐implant bone defects. Results: Both methods were comparably reliable and showed a strong association to each other in the classification of implant stability. As opposed to torque‐forced screw attachment, the variations in bone composition, differences in inter‐implant stability of adjacent implants, and peri‐implant bone reduction were statistically significant for both methods. Conclusions: Both non‐invasive diagnostic devices seem to be useful in the long‐term follow‐up of implant integration.