基于锥体束CT制作的3D打印牙颌模型精确度对比分析
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摘要
目的:利用患者锥体束CT(Cone Beam Computed Tomography,CBCT)数据3D打印牙缺失患者牙颌模型,与患者实际牙颌尺寸、传统石膏模型尺寸对比,评估其精确度。方法:选取安徽医科大学附属省立医院牙缺失患者10名,通过Mimics19.0软件处理患者CBCT数据,模拟重建牙颌数字化模型,导入3D打印机,采用立体光固化成型技术(Stereo Lithography Apparatus,SLA)制作树脂材料的上下颌实体模型。比较SLA-3D打印模型与患者实际口内、传统石膏模型的牙冠近远中径、牙弓长度和宽度、牙尖距离等测量值。结果:数据经配对样本t检验,SLA-3D打印模型与患者实际牙颌尺寸、传统石膏模型尺寸在牙冠近远中宽度、牙冠颊舌尖等解剖结构均有统计学差异(P<0.05)。结论:CBCT数据结合3D打印技术,可高仿真重建患者颌骨模型,但在精细结构的三维重建上精确性较差。
Objective: The aim of this study is to fabricate a virtual model with Cone Beam Computed Tomography(CBCT)via 3 D printing, and to compare the accuracy with the traditional dental cast. Methods: Ten patients with missing teeth were selected,the CBCT data were processed by Mimics 19.0 software to simulate and reconstruct the digital model. Using Stereo Lithography Apparatus(SLA) 3 D printing virtual model by 3 D printer. Comparing measured values of crown diameter, arch lengths and widths,cusp distances, etc. between the SLA-3 D printed model, the traditional dental cast and patient real data. Results: There is statistical difference between the SLA-3 D model, the traditional dental cast and patient real data(P <0.05). Conclusion: The CBCT data combined with 3 D printing technology can be used to reconstruct the virtual model of the patients. However, the accuracy is poor in the three-dimensional copy of the fine structure.
Objective: The aim of this study is to fabricate a virtual model with Cone Beam Computed Tomography(CBCT)via 3 D printing, and to compare the accuracy with the traditional dental cast. Methods: Ten patients with missing teeth were selected,the CBCT data were processed by Mimics 19.0 software to simulate and reconstruct the digital model. Using Stereo Lithography Apparatus(SLA) 3 D printing virtual model by 3 D printer. Comparing measured values of crown diameter, arch lengths and widths,cusp distances, etc. between the SLA-3 D printed model, the traditional dental cast and patient real data. Results: There is statistical difference between the SLA-3 D model, the traditional dental cast and patient real data(P <0.05). Conclusion: The CBCT data combined with 3 D printing technology can be used to reconstruct the virtual model of the patients. However, the accuracy is poor in the three-dimensional copy of the fine structure.
引文
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[16]李旻,张志宏,刘红红,等.锥形束CT对牙齿种植位点线距测量精度的实验研究[J].中华放射学杂志,2016,22(1):52-56.
[17]陈佳,张志宏,刘红红,等.曲面体层片与锥形束CT对种植区骨量测量的临床评价[J].安徽医科大学学报,2015,50(3):393-395.
[18]赵雪竹,唐志辉,许卫华,等.仿真颌骨模型结合牙种植手术导板在口腔种植教学中的应用[J].中国医学教育技术,2016,30(3):313-316.
[2]Filius MAP,Kraeima J,Vissink A,et al.Three-dimensional computer-guided implant placement in oligodontia[J].Int JImplant Dent,2017,3(1):30.
[3]Mutalik S,Rengasamy K,Tadinada A.Incidental findings based on anatomical location and clinical significance in CBCTscans of dental implant patients[J].Quintessence Int,2018,49(5):419-426.
[4]韩咏,辛颖,张智伟,等.3D打印在先天性心脏病诊疗中的应用[J].岭南心血管病杂志,2018,24(1):109-112.
[5]张晖榕,尹乐锋,刘艳丽,等.基于锥形术C T数字化建模的3 D打印牙颌模型制作及精确度研究[J].华西口腔医学杂志,2018,36(2):156-161.
[6]Mullen SR,Martin CA,Nqan P,et al.Accur acy of space analysis with emodels and plaster mo dels[J].Am J Orthod Dentofacial Orthop,2007,132(3):346-352.
[7]Horton HM,Miller JR,Gaillard PR,et al.Technique comparison for efficient or thodontic tooth measurements using digital models[J].Angle Orthod,2010,80(2):254-261.
[8]Kasparova M,Grafova L,Dvorak P,et al.Possibility of reconstruction of dental plaster cast from 3D digital study models[J].Biomed Eng Online,2013,12:49.
[9]Kim JH,Kim KB.Evaluation of dimensional stability of digital dental model fabricated by impression scanning method[J].J Dent Hygiene Sci,2014,14(1):15-21.
[10]Zhang F,Suh KJ,Lee KM.Validity of intraorals can scom pared with plaster models:an in-vivo comparison of dental measurements and 3D surface analysis[J].Plos One,2016,11(6):e0157713.
[11]Kim JH,Jung JK,Kim KB.Evaluation of validity of three dimensional dental digital model made from blue LED dental scanner[J].J Korea Academia-Industrial Coop Soc,2014,15(5):3007-3013.
[12]张健豪,王燮辞,武文芳.3D打印技术在医学中的应用[J].医学教育管理,2017,3(4):323-326.
[13]胡洪成,卢松鹤.3D打印技术在口腔医学应用的国内外现状和趋势[J].中国医疗器械信息,2017,23(3):6-10,21.
[14]满毅.数字化技术在口腔种植修复中的应用[J].口腔医学,2017,37(7):577-582.
[15]Al-Ekrish AA,Ekram M.A comparative study of the accuracy and reliability of multidetector computed tomography and cone beam computed tomography in the assessment of dental implant site dimensions[J].Dentomaxillofac Radiol,2011,40(2):67-75.
[16]李旻,张志宏,刘红红,等.锥形束CT对牙齿种植位点线距测量精度的实验研究[J].中华放射学杂志,2016,22(1):52-56.
[17]陈佳,张志宏,刘红红,等.曲面体层片与锥形束CT对种植区骨量测量的临床评价[J].安徽医科大学学报,2015,50(3):393-395.
[18]赵雪竹,唐志辉,许卫华,等.仿真颌骨模型结合牙种植手术导板在口腔种植教学中的应用[J].中国医学教育技术,2016,30(3):313-316.