Comparison of Resonance Frequency Analyzer and Tooth Mobility Measurement Device for the Evaluation of Dental Implant Stability

DOI 7 Citations
  • FUJISAWA Kenji
    Department of Oral and Maxillofacial Surgery， Subdivision of Medical Science for Oral and Maxillofacial Regeneration， Institute of Health Biosciences， The University of Tokushima Graduate School
  • MIYAMOTO Youji
    Division of Dentistry and Oral Surgery， Akita University Hospital
  • MOMOTA Yukihiro
    Department of Oral and Maxillofacial Surgery， Subdivision of Medical Science for Oral and Maxillofacial Regeneration， Institute of Health Biosciences， The University of Tokushima Graduate School
  • HIBI Yukiko
    Department of Oral Oncology， Kochi Medical School
  • NAGAYAMA Masaru
    Department of Oral and Maxillofacial Surgery， Subdivision of Medical Science for Oral and Maxillofacial Regeneration， Institute of Health Biosciences， The University of Tokushima Graduate School

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  • インプラントの安定性評価における共鳴振動周波数分析装置と歯牙動揺度測定装置の比較

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To compare a resonance frequency analyzer and tooth mobility measurement device for the evaluation of dental implant stability, we experimentally installed various implants in vertebral bones of cows and connected abutments. We measured the Implant Stability Quotient (ISQ) calculated from the resonance frequency with Osstell®; and the periotest value with Periotest®. The results are summarized as follows:<br/> 1. With higher abutment, the periotest value decreased, but ISQ was not affected by abutment connection or the height of abutment.<br/> 2. With longer installed implant, both the periotest value and the ISQ increased.<br/> 3. With larger diameter of installed implants, the ISQ increased, but the periotest value was not affected by implant diameter.<br/> 4. Both the ISQ and the periotest value were affected by the direction of the transducer connection or direction of striking.<br/> 5. As the marginal bone level decreased, both the ISQ and the periotest value decreased.<br/> 6. Both the ISQ and the periotest value were correlated with the implant placement torque, but the ISQ was more correlated than the periotest value.<br/> This research suggests that resonance frequency analysis with Osstell is useful for the evaluation of dental implant stability.

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