3D打印树脂种植工作模型尺寸稳定性对替代体复制精度影响的初步研究

doi:10.7518/hxkq.2025.2024462

华西口腔医学杂志 ›› 2025, Vol. 43 ›› Issue (5): 689-695.doi: 10.7518/hxkq.2025.2024462

3D打印树脂种植工作模型尺寸稳定性对替代体复制精度影响的初步研究

李欣¹(), 鲁玉宗², 杨咏涛³, 温奥楠⁴, 王勇³^,⁴(), 赵一姣³^,⁴()

^1.青岛大学附属医院口腔种植科青岛大学口腔医学院，青岛 266100
^2.山东华新义齿有限公司，青岛 266106
^3.北京大学医学部医学技术研究院，北京 100191
^4.北京大学口腔医学院·口腔医院，数字化研究中心，国家口腔医学中心，国家口腔疾病临床医学研究中心，口腔生物材料和数字诊疗装备国家工程研究中心，国家卫生健康委口腔数字医学重点实验室，口腔数字医学北京市重点实验室，北京 100081

收稿日期:2024-12-18 修回日期:2025-04-16 出版日期:2025-10-01 发布日期:2025-10-21
通讯作者: 王勇,赵一姣 E-mail:lixindentist@126.com;kgcadc@bjmu.edu.cn;kqcadc@bjmu.edu.cn;kqcadcs@bjmu.edu.cn
作者简介:李欣，副主任医师，博士，E-mail：lixindentist@126.com
基金资助:
青岛市自然科学基金(23-2-133-zyyd-jch);山东省医药卫生科技发展计划项目(202208050566)

Preliminary study on the influence of the dimensional stability of 3D printed resin master model on the replication accuracy of implant replicas

Li Xin¹(), Lu Yuzong², Yang Yongtao³, Wen Aonan⁴, Wang Yong³^,⁴(), Zhao Yijiao³^,⁴()

^1.Dept. of Oral Implantology, Affiliated Hospital of Qingdao University, School of Stomatology, Qingdao University, Qingdao 266100, China
^2.Shandong Huaxin Denture Co. , Ltd, Qingdao 266106, China
^3.Institute of Medical Techno-logy, Peking University Health Science Center, Beijing 100191, China
^4.Center of Digital Dentistry, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & NHC Key Laboratory of Digital Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China

Received:2024-12-18 Revised:2025-04-16 Online:2025-10-01 Published:2025-10-21
Contact: Wang Yong,Zhao Yijiao E-mail:lixindentist@126.com;kgcadc@bjmu.edu.cn;kqcadc@bjmu.edu.cn;kqcadcs@bjmu.edu.cn
Supported by:
Qingdao Natural Science Foundation(23-2-133-zyyd-jch);Medical and Health Science and Technology Development Plan Project of Shandong Province(202208050566)

摘要/Abstract

摘要：

目的研究3D打印树脂种植工作模型尺寸稳定性对替代体复制精度的影响。方法获取10例拟进行2个种植体支持的联冠或者固定桥修复患者的数字化印模，在模型打印完成后的3、7、14 d在替代体上安装扫描杆进行扫描，在Geomagic Wrap 2021软件中基于扫描数据分析不同时间扫描杆相对于口内扫描的3D偏差、线性偏差和角度偏差。结果种植替代体位置发生了与模型收缩方向一致的近中舌侧偏移。从第7天开始，替代体（扫描杆）的3D偏差、距离线性偏差和角度偏差相较于第3天显著增大（P<0.05）。在第14天时，变化更加明显，其中3D偏差、距离线性偏差及轴线角度偏差与3 d和7 d组相比差异均具有统计学意义（P<0.05）。各组间高度线性偏差差异无统计学意义。结论 3D打印树脂模型的尺寸稳定性不足会导致替代体相对位置和角度的变化，从而影响替代体对种植体位置复制的精度。建议在模型打印完的7 d内完成修复体的制作。

关键词: 3D打印, 树脂工作模型, 尺寸稳定性, 种植修复, 精度

Abstract:

Objective This study aimed to investigate the influence of the dimensional stability of 3D printed resin master model on the replication accuracy of implant replicas. Methods Ten digital impressions of patients undergoing continuous crowns or fixed bridge restoration supported by two implants were obtained, and resin models with implant replicas were 3D printed. Scanning rods were fixed on the replicas 3, 7, and 14 days after printing. The 3D, linear, and angular deviations of the scanning rods at different times were analyzed through Geomagic Wrap 2021 software. Results The position of the replicas shifted mesiolingually, in the same direction as the shrinkage of the model. From day 7 onward, the 3D, distance linear, and angular deviations of the replicas (scanning rod) significantly increased compared with those on the 3rd day (P<0.05). On the 14th day, the changes were even more pronounced, with the above deviations showing statistical significance (P<0.05) compared with those for the 3-day and 7-day groups. No statistical difference in height linear deviation was observed among the groups. Conclusion The insufficient dimensional stability of 3D printed resin models can lead to changes in the relative position and angle of the replicas, thereby affecting the accuracy of the replicas in recreating the implant’s position. Complete manufacturing of prosthesis is recommended within 7 days after the model is printed.

Key words: 3D printing, resin working model, dimensional stability, implant restoration, accuracy

中图分类号:

R783

李欣, 鲁玉宗, 杨咏涛, 温奥楠, 王勇, 赵一姣. 3D打印树脂种植工作模型尺寸稳定性对替代体复制精度影响的初步研究[J]. 华西口腔医学杂志, 2025, 43(5): 689-695.

Li Xin, Lu Yuzong, Yang Yongtao, Wen Aonan, Wang Yong, Zhao Yijiao. Preliminary study on the influence of the dimensional stability of 3D printed resin master model on the replication accuracy of implant replicas[J]. West China Journal of Stomatology, 2025, 43(5): 689-695.

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3D打印树脂种植工作模型尺寸稳定性对替代体复制精度影响的初步研究

Preliminary study on the influence of the dimensional stability of 3D printed resin master model on the replication accuracy of implant replicas

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