Moro Alessandro, Correra Pasquale, Boniello Roberto, Gasparini Giulio, Pelo Sandro
Department of Maxillofacial Surgery, Catholic University, Rome, Italy.
J Craniofac Surg. 2009 Mar;20(2):417-22. doi: 10.1097/SCS.0b013e31819b96a5.
The purpose of this study was to compare a computed tomographic (CT) three-dimensional analysis with a model analysis to use it as diagnostic aid for the evaluation of occlusal plane tilting in facial asymmetry. Ten patients with facial asymmetry underwent CT three-dimensional examination, plaster cast analysis, and two-dimensional cephalometric analysis. The distance between a reference plane to the upper first molar and upper canine was measured on three-dimensional CT, on models, and on cephalograms to assess occlusal plane tilting. Measurements taken on three-dimensional CT were compared with those taken on articulator and cephalograms, and the level of discordance between the different analyses was evaluated. Quantitative data on the occlusal tilting are similar, but three-dimensional CT gives a better representation of anatomy, thus reducing interpretative problems about altered individual anatomy. Three-dimensional CT seems to be so helpful in detecting individual anatomical variations that it can be adopted in the diagnosis for severe craniofacial asymmetry.
本研究的目的是比较计算机断层扫描（CT）三维分析与模型分析，以将其用作评估面部不对称中咬合平面倾斜的诊断辅助手段。10例面部不对称患者接受了CT三维检查、石膏模型分析和二维头影测量分析。在三维CT、模型和头影测量片上测量参考平面到上颌第一磨牙和上颌尖牙的距离，以评估咬合平面倾斜。将三维CT上的测量结果与在牙合架和头影测量片上的测量结果进行比较，并评估不同分析之间的不一致程度。关于咬合倾斜的定量数据相似，但三维CT能更好地呈现解剖结构，从而减少因个体解剖结构改变而产生的解释问题。三维CT在检测个体解剖变异方面似乎非常有用，可用于严重颅面不对称的诊断。
