Suomalainen Anni, Stoor Patricia, Mesimäki Karri, Kontio Risto K
Department of Radiology, University of Helsinki and HUS Radiology (Medical Imaging Center).
Department of Maxillofacial Surgery, Helsinki University Hospital, Helsinki, Finland.
J Clin Exp Dent. 2015 Dec 1;7(5):e605-12. doi: 10.4317/jced.52556. eCollection 2015 Dec.
The use of rapid prototyping (RP) models in medicine to construct bony models is increasing.
The aim of the study was to evaluate retrospectively the indication for the use of RP models in oral and maxillofacial surgery at Helsinki University Central Hospital during 2009-2010. Also, the used computed tomography (CT) examination - multislice CT (MSCT) or cone beam CT (CBCT) - method was evaluated.
In total 114 RP models were fabricated for 102 patients. The mean age of the patients at the time of the production of the model was 50.4 years. The indications for the modelling included malignant lesions (29%), secondary reconstruction (25%), prosthodontic treatment (22%), orthognathic surgery or asymmetry (13%), benign lesions (8%), and TMJ disorders (4%). MSCT examination was used in 92 and CBCT examination in 22 cases. Most of the models (75%) were conventional hard tissue models. Models with colored tumour or other structure(s) of interest were ordered in 24%. Two out of the 114 models were soft tissue models.
The main benefit of the models was in treatment planning and in connection with the production of pre-bent plates or custom made implants. The RP models both facilitate and improve treatment planning and intraoperative efficiency.
Rapid prototyping, radiology, computed tomography, cone beam computed tomography.
医学领域中使用快速成型（RP）模型构建骨模型的情况日益增多。
本研究旨在回顾性评估2009 - 2010年期间赫尔辛基大学中心医院口腔颌面外科使用RP模型的适应证。同时，对所使用的计算机断层扫描（CT）检查方法——多层螺旋CT（MSCT）或锥形束CT（CBCT）——进行评估。
共为102例患者制作了114个RP模型。制作模型时患者的平均年龄为50.4岁。建模的适应证包括恶性病变（29%）、二期重建（25%）、修复治疗（22%）、正颌外科或不对称畸形（13%）、良性病变（8%）以及颞下颌关节紊乱（4%）。92例使用了MSCT检查，22例使用了CBCT检查。大多数模型（75%）为传统硬组织模型。24%的模型定制了带有彩色肿瘤或其他感兴趣结构的模型。114个模型中有2个为软组织模型。
这些模型的主要益处在于治疗计划制定以及与预弯板或定制植入物的制作相关。RP模型有助于并提高了治疗计划制定和术中效率。
快速成型；放射学；计算机断层扫描；锥形束计算机断层扫描
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