牙齒負責咀嚼食物，是為消化系統之最前線。然而過大或不正常之咬合力，容易造成牙冠及齲齒填充物之破壞，或對人工植體產生過大之彎曲應力，最終導致植牙的失敗。因此以臨床牙科之觀點，得知咬合力之大小固然重要，但對於咬合力之方向及作用位置亦是值得深入探討之議題。
由於當前文獻中，並無咬合力分佈之參考數據，亦沒有能量測咬合力分佈之器械，有鑑於此，本研究的目的為探討以市售積層陶瓷電容(multilayer ceramic capacitor, MLCC)作為力量感測元件之可行性，並結合微機電製程技術製作陣列式感測器，用以校正咬合力量測初步評估。
首先，針對單顆MLCC之壓電特性及力學強度進行量測，實驗結果顯示，MLCC電荷輸出量與受力關係呈高度線性(R2=0.998)，在所評估的試件尺寸中，其具有450N以上承壓能力，證明此器材強度足以承受咬合力作用而不致於發生破壞。在陣列式感測器校正方面，受力分佈結果雖受MLCC本身高度所影響，但整體受力總和可有效反應MTS所施加之合力(error<6%)。將陣列感測器置於牙冠面下量測時，感測MTS施力之合力結果，準確率高達98.75%，故推估以此感測方式量測咬合力具高度之可行性。

One of the important functions of tooth is to provide force for food chewing. The quantified force information in human occlusion or mastication was incompletely recorded in past study, especially concerning how these forces are distributed on the dental crown. From a biomechanical point of view, the distribution of the occlusal force is not less important than the force magnitude for estimating most dental treatments such as crown or post restoration in a long term success. Therefore, the main purpose of this study is to justify the feasibility of using multilayer ceramic capacitor (MLCC) act as a force sensor, as well as to calibrate the accuracy of using the MLCC as a sensor array to measure the occlusal force.
The result reveals that the relationship in piezoelectric charge versus loading force of a single MLCC shows high linearity (R2=0.998), and it possesses the capacity to withstand 450N normal force. This suggested that strength of a single MLCC can survive from bite force. In sensor array calibrating, although the result of force distribution depends on the varied height of each MLCCs, the total force measured by this homemade sensor array can effectively report the MTS applied total force (error < 6%). Putting the sensor array under the crown surface, this array also provides high accuracy response (error < 2%). To conclude, the MLCC is an acceptable force sensor component and is possible for bite force measurement.

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