近年來使用手持式局部振動工具的勞工比例日亦漸增，而雇主為了經濟利益，往往要求勞工們在沒有正確的安全意識下長時間工作，也未必教導勞工正確操作振動器械的方法與注意事項，若勞工長期長時間使手部暴露於局部振動的工作環境中，則手部容易引發手指的末梢神經與末梢微血管受損、腕部正中神經受壓迫產生腕隧道症候群與肌肉骨骼相關的病變。在牙科臨床治療中，典型的器械為牙醫師最常使用的牙科手機，因為機頭內的渦輪轉子不平衡質量，當渦輪轉子高速旋轉的過程便產生劇烈的高頻率振動，若牙科治療人員長時間使用相關的牙科治療器材其手部容易感到麻木、刺痛的感覺，嚴重者則引發不可逆的肌肉骨骼病變，因此不可忽略高頻率振動引發手部疾病的嚴重性。
目前手持式振動器械對手部的傷害實驗、統計資料不計其數，諸多文獻僅說明長時間接觸高頻率的振動會使手部感到麻木、刺痛感與失去知覺，並產生相關的併發症，國外少數學者探討引發此類疾病的原因，然而真正導致病因的因子仍不得而知、眾說紛紜。因此本研究透過建立具生物擬真性的手指模型進行分析與討論，觀察手指受不同高頻率的振動類型與不同的測試條件時，手指軟組織的動態響應。
本研究使用有限元素法建立具生物擬真性的手指模型，進行手指受不同振動類型之測試，改變牙科手機握柄處的表面特性與探討穿戴手套與否的交互影響，同時也比較使用VPAD評估法、動能評估法的差異，並由頻譜圖分析振動的頻幅成份，最後對模擬結果做整體性的分析與討論。研究結果發現穿戴手套未必能夠絕對降低手指軟組織承受的振動能量，而牙科手機表面的性質亦是影響軟組織承受能量多寡的關鍵因素。

Currently, epidemiologic studies have showed long-lasting exposed to high-frequency vibration causes a complex of vascular, neurological, and musculoskeletal disturbances. The pathophysiological mechanisms behind these effects are not still understood fully in these days. Therefore, this study analyzed and discussed this issue by creating a biomechanical model of a finger. With the results of the simulations by different testing conditions, we analysis and compare the response of the soft tissue of a fingers.
In the present study, a model based on finite element techniques has been developed to simulate the mechanical responses of the fingertips to high-frequency vibration loading. The proposed model is three-dimensional and incorporates the essential anatomical structures of a finger: skin, subcutaneous tissue, bone, and nail. The numerical tests were performed using the fingertip model to simulate the responses of a fingertip with/without wearing gloves, suffering different high-frequency vibration loading, and contacting with the different surface property of the handpieces. Results shows wearing gloves doesn’t protect the soft tissue completely which depended on the type of the vibration loading, and the different surface property of the handpieces. The present model may serve as a useful tool to study the mechanism of tissue degeneration under high-frequency vibration loading encountered during operation of hand-held power tools.

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