CAJ | 학술논문

目的探讨CT三维重建在上颌骨埋伏牙诊治中的应用价值.方法对常规X线片均不能清楚地判断埋伏牙(或阻生牙)形态、位置及与邻牙关系的30例患者应用螺旋CT进行扫描和图像三维重建并采用表面遮盖显示法(SSD)显示埋伏牙的形态、位置及与邻牙的关系.结果经CT三维重建和SSD处理后,30例病例均清楚地显示了埋伏牙的牙体形态、唇腭向位置、萌出方向以及与邻牙的关系.结论螺旋CT三维重建对于上颌埋伏牙手术方案的设计及实施具有重要的指导意义.
목적탐토CT삼유중건재상합골매복아진치중적응용개치.방법대상규X선편균불능청초지판단매복아(혹조생아)형태、위치급여린아관계적30례환자응용라선CT진행소묘화도상삼유중건병채용표면차개현시법(SSD)현시매복아적형태、위치급여린아적관계.결과경CT삼유중건화SSD처리후,30례병례균청초지현시료매복아적아체형태、진악향위치、맹출방향이급여린아적관계.결론라선CT삼유중건대우상합매복아수술방안적설계급실시구유중요적지도의의.
Objective To evaluate the value of three-dimensional surface reconstruction of spiral CT for the buried teeth in maxilla. Methods Three-dimensional surface reconstruction of spiral CT and shaded surface display(SSD) was applied to thirty patients whose impacted teeth couldn’t be judged clearly through the panorama. Results Three-dimensional surface reconstruction of spiral CT and SSD could clearly demonstrate the dental surface image including crown, root neck and root bifurcation in three-dimensional way, labial or palatal location, eruption orientation and relation with dentition. Conclusions The three-dimensional surface reconstruction has important directive significance to make out the operation plan for the buried teeth in maxilla.