In the maxilla, the abutment distribution did not allow a palatal-free restoration. 在上頜，基牙的分布情況不允許做不覆蓋腭部的設(shè)計。 web.degree-distance.net
The destruction of the face and maxilla is so severe that the permanent canine teeth are erupting at a 45-degree angle. 面部和上頜骨的破損嚴(yán)重到他的犬齒（恒齒）呈45度角的形狀向外伸出。
Methods Spiral CT scanning, image processing and CAD technology and FEM software were employed in the study to construct the three-dimensional finite element model of maxilla with a palatal implant. 方法采用螺旋CT斷層掃描、計算機(jī)圖像處理、計算機(jī)輔助設(shè)計和有限元軟件處理，建立含腭部種植體的上頜骨三維有限元模型。