Abstract
INTRODUCTION Several investigators applied the resonance frequency analysis (RFA) to assess the conditions of bone-dental implant interfaces [1-5]. Their results show that the RFA is useful to identify the degree of osseointegration and provide a clinical index for assessing the stability of dental implants. Furthermore, some devices for RFA of dental implants have been developed (Osstell, Integration Diagnostics, Goteborgsvagen, Sweden). But they only presented overall phenomena around implants and were unable to examine the location of bony defects. Thus this study aims to propose and develop an effective detection technique based on the RFA for discriminating local bone-defects with an in vitro model using experimental modal analysis (EMA). Promising results reveal that the developed technique is able to locate bony defects surrounding the implants.
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