A new technique for the creation of a computerized composite skull model
A new technique for the creation of a computerized composite skull model
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DOI：
10.1053/joms.2003.50033
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发表时间：
2003-02-01
影响因子：
1.9
通讯作者：
Rosen, A
中科院分区：
文献类型：
--
作者：
Gateno, J;Xia, J;Rosen, A
目的：本研究的目的是开发一种用于创建计算机化的复合头骨模型并测试其准确性的技术。计算机化的复合颅骨模型是三维(3D)CT骨骼模型和数字牙齿模型的结合。材料和方法：使用完整牙列的干燥颅骨进行该技术的开发。计算机复合颅骨模型的建立分为3个步骤。第一步是创建数字牙科模型。第二步是创建颅颌面部骨骼的3D CT骨骼模型。最后一步是将数字牙齿模型整合到3D CT头骨模型中，创建一个计算机化的复合头骨模型。对计算机化的复合颅骨模型的准确性进行评估。在计算机化的复合颅骨模型和干燥的颅骨上进行了骨到骨、牙到牙和骨到牙的测量。进行皮尔逊相关系数和线性回归检验。结果：建立了一种计算机化的复合颅骨模型。这个计算机化的模型不仅从CT数据中再现了骨骼结构，而且还从数字牙科模型中再现了牙列。对于骨到骨的测量，计算机化的复合颅骨模型与干燥的颅骨模型之间的平均差值为0.5+/-0.6 mm。对于牙齿到牙齿的测量，平均差异为0.1+/-0.2 mm。对于骨到牙齿的测量，平均误差为0.2+/-0.3 mm。结论：本研究显示了建立计算机化的复合颅骨模型的可行性和准确性。(C)2003年美国口腔和颌面外科医生协会。
Purpose: The goals of this study were to develop a technique for creating a computerized composite skull model and to test its accuracy. The computerized composite skull model is the combination of a 3-dimensional (3D) computed tomography (CT) bone model with digital dental models.Materials and Methods: A dry skull with intact dentition was used in development of the technique. The creation of the computerized composite skull model was divided into 3 steps. The first step was to create digital dental models. The second step was to create a 3D CT bone model of the craniomaxillo-facial skeleton. The last step was to incorporate the digital dental models into the 3D CT skull model, creating a computerized composite skull model. The accuracy of the computerized composite skull model was assessed. Bone-to-bone, tooth-to-tooth, and bone-to-tooth measurements were made on the computerized composite skull model and the dry skull. Pearson correlation coefficient and linear regression tests were performed.Results: A technique to create a computerized composite skull model was developed. This computerized model not only represented bony structures from CT data but also reproduced dentition from digital dental models. For the bone-to-bone measurements, the mean difference between the computerized composite skull model and the dry skull was 0.5 +/- 0.6 mm. For the tooth-to-tooth measurements, the mean difference was 0.1 +/- 0.2 mm. For the bone-to-tooth measurements, the mean difference was 0.2 +/- 0.3 mm.Conclusions: This study showed the feasibility of creating a computerized composite skull model as well as its accuracy. (C) 2003 American Association of Oral and Maxillofacial Surgeons.