口腔医学研究

口腔医学研究 ›› 2023, Vol. 39 ›› Issue (11): 995-999.DOI: 10.13701/j.cnki.kqyxyj.2023.11.011

• 口腔修复学研究 • 上一篇    下一篇

结构设计对三维打印上颌树脂模型精度的影响

赵艳芳1, 辛海涛2, 张志媛3, 李恺4, 罗慧闻2, 吴玉禄5*   

  1. 1.北京大学第三医院口腔科 北京 100191;
    2.口颌系统重建与再生全国重点实验室, 国家口腔疾病临床医学研究中心,陕西省口腔医学重点实验室, 空军军医大学第三附属医院口腔修复科 陕西 西安 710032;
    3.沧州市人民医院口腔分院口腔科 河北 沧州 061000;
    4.中国人民解放军空军军医大学空军第九八六医院口腔科 陕西 西安 710054;
    5.空军军医大学第三附属医院口腔修复工艺科 陕西 西安 710032
  • 收稿日期:2023-06-07 出版日期:2023-11-28 发布日期:2023-11-22
  • 通讯作者: *吴玉禄,E-mail:xiufu2004@126.com
  • 作者简介:赵艳芳(1986~ ),女,河北任丘人,硕士,主治医师,主要从事口腔修复生物力学研究。
  • 基金资助:
    空军军医大学第三附属医院新技术重点项目(编号:LX2021-202)空军军医大学军事医学提升项目(编号:2020JSTS24)国家口腔临床医学中心课题(编号:LCB202217)

Accuracy of 3D Printed Maxillary Resin Model with Four Structural Designs of Model Bases

ZHAO Yanfang1, XIN Haitao2, ZHANG Zhiyuan3, LI Kai4, LUO Huiwen2, WU Yulu5*   

  1. 1. Department of Stomatology, Third Hospital of Peking University, Beijing 100191, China;
    2. State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontic, The Third Hospital Affiliated of Air Force Military Medical University, Xi'an 710032, China;
    3. Department of Stomatology, the Stomatology branch of Cangzhou People's Hospital, Cangzhou 061000, China;
    4. No.986 Hospital of Air Force Military Medical University, Xi'an 710054, China;
    5. Department of Dental Laboratory, The Third Hospital Affiliated of Air Force Military Medical University, Xi'an 710032, China
  • Received:2023-06-07 Online:2023-11-28 Published:2023-11-22

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摘要： 目的: 研究不同的结构设计对三维打印上颌树脂模型精度的影响。方法: 使用模型扫描仪扫描上颌标准石膏牙列模型,导入3shape软件中设计4组不同结构的打印模型,分别为完整上腭实心模型、完整上腭空心模型、马蹄形实心模型、马蹄形空心模型。使用三维打印机每组打印5个树脂模型,记录各组模型的打印时间并称重。在打印完成后第1、7天,使用模型扫描仪对其进行扫描,在Geomagic软件中与相应的结构设计文件进行偏差分析。结果: 4组打印模型第1天的精度范围为(31.40±4.26) μm到(57.38±7.56) μm,第7天精度范围为(34.26±5.06) μm到(86.40±26.93) μm。不同结构设计的三维打印上颌树脂模型间的精度具有统计学差异。马蹄形空心组打印模型形变最大,马蹄实心组形变最小。完整上腭实心组与完整上腭空心组的精度介于前两组之间。4种类型模型质量范围为(15.82±0.04) g到(42.08±0.31) g。结论: 4种不同结构设计的打印模型精度均在临床接受范围。从打印精度和材料利用率考虑,马蹄实心设计的上颌打印模型具有优势。

关键词: 3D打印, 树脂模型, 结构设计, 偏差分析, 精度

Abstract: Objective: To investigate the impact of different model designs on the accuracy of 3D printed maxillary resin models. Methods: A model scanner was used to scan the standard gypsum dentition model of the upper jaw, and four sets of printed models with different structural types were designed, including complete solid model of the upper palate, complete hollow model of the upper palate, horseshoe shaped solid model, and horseshoe shaped hollow model. A 3D printer was used to print five resin models per group. The printing time of the resin models was recorded and all models were weighted. On the first and seventh day after printing, a model scanner was used to scan them. The printed models were performed deviation analysis with the corresponding model design files in Geomagic software. Results: The accuracy range of four printing models on the first day was (31.40±4.26) μm to (57.38±7.56) μm. The accuracy range on the seventh day was (34.26±5.06) μm to (86.40±26.93) μm. There were statistical differences in the accuracy of 3D printed maxillary resin models with different designs. The horseshoe shaped hollow model had the largest deformation, while the horseshoe solid model had the smallest deformation. The accuracy of the complete solid palate group and the complete hollow palate group were between the above two groups. The mass range of four types of models was (15.82±0.04) g to (42.08±0.31) g. Conclusion: The accuracy of printing models with four structural designs is within the clinical acceptance range. Considering printing accuracy and material utilization, it is recommended to use a maxillary printing model with horseshoe solid design.

Key words: 3D Printing, resin dental model, designs of model bases, deviation analysis, accuracy