With the loss of the alveolar height, the maximum equivalent stress and the principle stress of the upper central incisor periodontium increased. 隨著牙槽骨高度的降低，上中切牙牙周膜最大等效應力和主應力逐漸增大。
There is no significant stress difference in the dentin for glass ionomer restoration when compared with that of an opening incisor. 凡以玻璃水門汀為補綴材料之門齒，在應力分佈的表現上皆與根管治療后尚未補綴之門齒相同沒有差異。
Odontoma was enucleated surgically and the impacted maxillary lateral incisor was bonded with a lingual button and attached with a traction hook under general anesthesia. 在全身麻醉狀態下將齒瘤剜出，並於阻生側門齒裝置舌側鈕及結紮線。
