Development of functional assessment system for dental implant in clinical use

为了客观地对种植体的功能进行评价，我们对种植体的运动产生了兴趣。本研究的目的是开发适用于牙椅侧的种植体功能评价系统，并建立种植体功能评价指标。我们新开发了一套系统，可以在种植后即刻测量种植体的运动，并从种植体的功能角度考虑种植体的手术质量、预后评估、与天然牙的连接效果等。第一年，制作了模拟种植体运动的标准模型。并对适合临床应用的测量条件进行了探讨。设计制作了牙种植体功能评价系统iad101和测量探头iap1，并进行了…测试。更确切地说。第二年，对研制的系统、探头及功能评定指标进行检测。还对探头的医疗安全性和人机界面进行了检查。最后对IAD201和IAP2进行了实验设计和制作。此外，还利用该系统和探头对种植体的几何形状(长度和直径)作为种植体选择的标准进行了讨论。在过去的一年里，还对实验系统和探测器进行了检查。为了获得更准确的功能评估指标，将测量频率扩展到5000赫兹，并将探头尖端小型化，以提高临床使用的可操作性。最后，制作了IAD301和IAP3，并对其临床应用进行了综合评估，完成了系统的开发。该系统克服了市面上PerioestTM&gt；和OsstellTM&gt；的种种缺点，可以代替形态X线片检查和人工检查对种植体进行客观评估，对预后的评估是非常有效的。此外，它还将有助于种植体几何形状的选择。较少

In order to carry out the functional evaluation of the dental implantation objectively, we have interested in the implant movement. The purpose of this study is to develop the functional assessment system for dental implant usable at the dental-chair side and to establish the index of functional assessment of the implant. We have newly developed the system in which the implant movement can be measured just after implanting to jaw bone throughout the long term and the quality of the implant operation, evaluations of the prognosis, the effects of the connection with the natural tooth, etc.can be also considered, from the functional viewpoints of the implant.This research has been made for three years. In the first year, the standard models which simulated the movement of dental implant were made. And the measurement conditions suitable for the clinical use were examined. The functional assessment system for dental implant IAD101 and the measurement probe IAP1 were designed and produced e … More xperimentally. In the second year, the above developed system and probe and the index of functional assessment were examined. The medical safety and human interface of the probe were also examined. Finally, IAD201 and IAP2 were designed and made experimentally. In addition, the implant geometry (length and diameter) as the criteria of implant selection was also discussed by using this system and probe. In the last year, the experimental system and probe was also examined. The measuring frequency was expanded to 5000Hz in order to obtain the more accurate index of functional assessment and the tip of the probe was also miniaturized in order to improve the operability in the clinical use. Finally, the IAD301 and IAP3 were made and synthetically evaluated for clinical use, then the development of the system has been completed. The developed system will overcome various disadvantages of marketed Periotest^<TM> and Osstell^<TM>, enable the objective assessment of implantation instead of morphological radiographic examination and the manual examination, and be very effective for the evaluation of the prognosis. Moreover it will be useful in the selection of the implant geometry. Less