植入物稳定性商
共振频率分析
骨整合
植入
环钻
牙科
医学
外科
作者
Marco Degidi,Perrotti,Adriano Piattelli,Giovanna Iezzi
出处
期刊:PubMed
日期:2010-03-09
卷期号:25 (1): 45-8
被引量:14
摘要
Resonance frequency analysis (RFA) is a quantitative method for the measurement of implant stability. Information about the significance of RFA measurements and the relationship between RFA values and implant osseointegration, success, or failure is important from a clinical point of view. In a previous study the authors observed a strong correlation between RFA values and mineralized bone-implant contact percentage in implants retrieved after 6 months. The aim of the present histologic and histomorphometric study was to determine whether the same correlation existed at earlier time points, specifically in implants retrieved after 4 or 8 weeks.Sixteen implants, all with a sandblasted and acid-etched surface, were evaluated in the present study. The implants were retrieved for different reasons after 4 or 8 weeks of healing with a 5-mm trephine bur and immersed in 10% buffered formalin to be processed for histology.A statistically insignificant correlation was detected between RFA values and mineralized bone-implant contact percentage (P = or < .5502) using the Friedman and Spearman tests.RFA should reflect the bone anchorage of the implant; however, the relationship between bone structure and RFA is not fully understood.
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