West China Journal of Stomatology

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nfluence of Bicortical Anchorage on the Natural Frequencies of Dental Implant

WANG Kun1, LI De-hua2, ZHOU Ji-xiang1, ZHANG Cong-ji1, LIU Bao-lin2, LI Yu-long3   

  1. 1. Dept. of Dentistry, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; 2. Dept. of Oral Implantology, Qindu Stomatological Hospital, The Fourth Military Medical University, Xi'an 710032, China; 3. Dept. of Aircraft Engineering, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2006-02-25 Revised:2006-02-25 Online:2006-02-20 Published:2006-02-20

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Abstract:

Objective  To investigate the influences of bicortical anchorage on values of natural frequencies of dental implants utilizing the 3-dimensional finite element analysis. Methods  Using the commercial code of Solidworks, 3-D models of a screw-shaped dental implant and a mandibular bone segment were generated. After the 3-D implant-bone complex was meshed by ABAQUS software, effects of bicortical anchorage on the buccolingual and axial first-order natural frequencies of the implant were computed. Results  Bicortical anchorage increased both the buccolingual and axial natural frequencies remarkably. As the bicortical anchorage got deeper, the frequencies correspondingly got higher. Conclusion  Bicortical anchorage can increase the buccolingual and axial primary stability of dental implants.

Key words: dentalimplant, three-dimensionalfiniteelement, resonancefrequencyanalysis

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