Feng Yao-Pu, Qiao Min, Zhou Hong, Zhang Yan-Ning, Si Xin-Qin
Department of Orthodontics, Hospital of Stomatology of Baoji City. Baoji 721000, China. E-mail:
Shanghai Kou Qiang Yi Xue. 2017 Feb;26(1):59-63.
In this study, we reconstructed the craniofacial hard and soft tissues based on the data from digital cephalometric radiographs and laser scanning. The effective fitting of the craniofacial hard and soft tissues was performed in order to increase the level of orthognathic diagnosis and treatment, and promote the communication between doctors and patients.
A small lead point was put on the face of a volunteer and frontal and lateral digital cephalometric radiographs were taken. 3-D reconstruction system of the craniofacial hard tissue based on 2-D digital radiograph was used to get the craniofacial hard tissue model by means of hard tissue deformation modeling. 3-D model of facial soft tissue was obtained by using laser scanning data. By matching the lead point coordinate, the hard tissue and soft tissue were fitted.
The 3-D model of the craniofacial hard and soft tissues was rebuilt reflecting the real craniofacial tissue structure, and effective fitting of the craniofacial hard and soft tissues was realized.
The effective reconstruction and fitting of the 3-D craniofacial structures have been realized, which lays a foundation for further orthognathic simulation and facial appearance prediction. The fitting result is reliable, and could be used in clinical practice.
在本研究中，我们基于数字化头影测量X线片和激光扫描数据重建颅面硬组织和软组织。对颅面硬组织和软组织进行有效拟合，以提高正颌诊断和治疗水平，并促进医患沟通。
在一名志愿者面部放置一个小铅点，拍摄正位和侧位数字化头影测量X线片。基于二维数字化X线片的颅面硬组织三维重建系统通过硬组织变形建模获取颅面硬组织模型。利用激光扫描数据获得面部软组织三维模型。通过匹配铅点坐标，对硬组织和软组织进行拟合。
重建了反映真实颅面组织结构的颅面硬组织和软组织三维模型，实现了颅面硬组织和软组织的有效拟合。
实现了三维颅面结构的有效重建和拟合，为进一步的正颌模拟和面部外观预测奠定了基础。拟合结果可靠，可应用于临床实践。
