| 2026 Development of a Dental Implant Movement Checker for Technology Assessment of Implantation | ||
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H. OKA1, S.K. WIJAYA1, T. SUMIKAWA2, K. SARATANI3, and T. KAWAZOE3, 1 Okayama University Medical School, Japan, 2 Graduate School, Osaka Dental University, Japan, 3 Osaka Dental University, Japan Objectives: It is urgent to establish the technology assessment of dental implantation. A measurement of implant movement provides useful information for both planning and evaluation of implantation. We developed a dental implant movement (IM) checker and proposed an implant movement (IM) score as a mobility index. Methods: The designed IM checker is characterized by these points: Any attachment installed in the implant is not required either; The IM score responds to visco-elasticity of implant-bone interface; It is possible to measure implant movement during immediate-loading. The IM checker constitutes of a measuring probe and a microcontroller-based device with a printer. The measuring probe is pressed to an implant superstructure at 50 grams manually. A sine-wave vibration force of 400 Hz is applied on it and the resulting acceleration is detected at the driving point. When the amplitude and frequency of force are kept constant, the acceleration is proportional to mechanical mobility of the interface theoretically and the IM score (0 to 100) is calculated from it. In order to verify the checker, the implant movement of two artificial models was respectively measured by four operators at each 12 times, which simulated a rigid and a slightly movable interface respectively. Results: The implant movement of two models was discriminated with p<0.01 (t-test) in 12 measurements. There was no significance in the IM score of each model among four operators with p<0.01. The measurement variation of two well-trained operators among four was 2%. Conclusions: The developed IM checker had a sufficient reliability for assessing implant movement of artificial models objectively and quantitatively. In the future we will apply it to the measurement of implant movement of various types implanted in the maxilla and mandible. Acknowledgements: This work was supported by the Scientific Research Fund of Japanese MEXT (Basic Research B2 of No. 14380404). | ||
| Seq #210 - Digital Imaging & Models/Motion Assessment/Colorimetry/Non-imaging Diagnositcs 3:45 PM-5:00 PM, Friday, 27 June 2003 Svenska Massan Exhibition Hall B | ||
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