Ayoub A F, Rehab M, O'Neil M, Khambay B, Ju X, Barbenel J, Naudi K
MVLS College, Faculty of Medicine, Glasgow University Dental Hospital and School, Glasgow, UK.
MVLS College, Faculty of Medicine, Glasgow University Dental Hospital and School, Glasgow, UK.
Int J Oral Maxillofac Surg. 2014 Apr;43(4):454-9. doi: 10.1016/j.ijom.2013.08.016. Epub 2013 Oct 3.
A method of producing a composite model consisting of a three-dimensional printed mandible bearing plaster teeth is presented. Printed models were obtained from cone beam computed tomograms (CBCT) of dry human mandibles. The plaster casts of the teeth were obtained from impressions of the teeth of the dry mandibles. The distorted teeth of the printed models were removed and replaced by the plaster casts of the teeth using a simple transfer jig. The accuracy of the composite models obtained from six mandibles was assessed from laser scans. The scans of the dry mandibles and the composite models were superimposed and the magnitude of the discrepancies at six points on the dentition and six on the mandible were obtained. It was concluded that the errors of the method were small enough to be clinically significant. The use of the composite models is illustrated in two clinical cases.
本文介绍了一种制作由带有石膏牙的三维打印下颌骨组成的复合模型的方法。打印模型是从干燥人类下颌骨的锥形束计算机断层扫描（CBCT）中获得的。牙齿的石膏模型是从干燥下颌骨牙齿的印模中获得的。使用一个简单的转移夹具移除打印模型中变形的牙齿，并用牙齿的石膏模型进行替换。通过激光扫描评估了从六个下颌骨获得的复合模型的准确性。将干燥下颌骨和复合模型的扫描结果进行叠加，得出牙列上六个点和下颌骨上六个点的差异大小。得出的结论是，该方法的误差小到在临床上具有显著意义。在两个临床病例中展示了复合模型的应用。
