Radboudumc 3DLab The Netherlands, Radboud university medical center, Radboud Institute for Health Sciences, Geert Grooteplein Zuid 10, 6525, GA, Nijmegen, The Netherlands.
Department of Dentistry, section of Orthodontics and Craniofacial Biology, Radboud university medical center, Philips van Leydenlaan 25, 6525, EX, Nijmegen, The Netherlands.
Clin Oral Investig. 2021 Jan;25(1):77-85. doi: 10.1007/s00784-020-03336-y. Epub 2020 Jun 3.
The purpose of this study was to evaluate the clinical accuracy of the fusion of intra-oral scans in cone-beam computed tomography (CBCT) scans using two commercially available software packages.
Ten dry human skulls were subjected to structured light scanning, CBCT scanning, and intra-oral scanning. Two commercially available software packages were used to perform fusion of the intra-oral scans in the CBCT scan to create an accurate virtual head model: IPS CaseDesigner® and OrthoAnalyzer™. The structured light scanner was used as a gold standard and was superimposed on the virtual head models, created by IPS CaseDesigner® and OrthoAnalyzer™, using an Iterative Closest Point algorithm. Differences between the positions of the intra-oral scans obtained with the software packages were recorded and expressed in six degrees of freedom as well as the inter- and intra-observer intra-class correlation coefficient.
The tested software packages, IPS CaseDesigner® and OrthoAnalyzer™, showed a high level of accuracy compared to the gold standard. The accuracy was calculated for all six degrees of freedom. It was noticeable that the accuracy in the cranial/caudal direction was the lowest for IPS CaseDesigner® and OrthoAnalyzer™ in both the maxilla and mandible. The inter- and intra-observer intra-class correlation coefficient showed a high level of agreement between the observers.
IPS CaseDesigner® and OrthoAnalyzer™ are reliable software packages providing an accurate fusion of the intra-oral scan in the CBCT. Both software packages can be used as an accurate fusion tool of the intra-oral scan in the CBCT which provides an accurate basis for 3D virtual planning.
本研究旨在评估两种商业上可用的软件包在锥形束 CT（CBCT）扫描中融合口内扫描的临床准确性。
十个人类干燥颅骨进行结构光扫描、CBCT 扫描和口内扫描。使用两种商业上可用的软件包来执行 CBCT 扫描中口内扫描的融合，以创建准确的虚拟头部模型：IPS CaseDesigner®和 OrthoAnalyzer™。结构光扫描仪被用作金标准，并使用迭代最近点算法叠加到 IPS CaseDesigner®和 OrthoAnalyzer™创建的虚拟头部模型上。记录软件包获得的口内扫描位置之间的差异，并以六个自由度以及观察者间和观察者内的组内相关系数表示。
与金标准相比，测试的软件包 IPS CaseDesigner®和 OrthoAnalyzer™显示出高度的准确性。对所有六个自由度进行了准确性计算。值得注意的是，IPS CaseDesigner®和 OrthoAnalyzer™在上下方向上的准确性在上下颌中均最低。观察者间和观察者内的组内相关系数显示出观察者之间的高度一致性。
IPS CaseDesigner®和 OrthoAnalyzer™是可靠的软件包，可提供 CBCT 中口内扫描的准确融合。这两个软件包都可以用作 CBCT 中口内扫描的准确融合工具，为 3D 虚拟规划提供准确的基础。
