口腔医学研究

口腔医学研究 ›› 2019, Vol. 35 ›› Issue (1): 67-70.DOI: 10.13701/j.cnki.kqyxyj.2019.01.016

• 口腔种植修复学研究 • 上一篇    下一篇

数字化印模对可摘局部义齿临床适合性的影响

张楠1, 刘庆2, 刘娜2*, 常文晓1, 康洁3, 窦海瑞1   

  1. 1. 山西大医院口腔科 山西 太原 030032;
    2. 河北医科大学口腔医学院,河北省口腔医学重点实验室 河北 石家庄 050017;
    3. 山西联袂义齿技术有限公司 山西 太原 030000
  • 收稿日期:2018-07-06 出版日期:2019-01-18 发布日期:2019-01-28
  • 通讯作者: 刘娜,E-mail:2036369127@qq.com
  • 作者简介:张楠(1977~ ),男,山西人,硕士,主任医师,主要从事口腔修复临床应用的研究工作。

Influence of Digital Impression on Clinical Adaptation of Removable Partial Dentures

ZHANG Nan1, LIU Qing2, LIU Na2*, CHANG Wen-xiao1, KANG Jie3, DOU Hai-rui1   

  1. 1. Department of Stomatology, Shanxi Da Yi Hospital, Taiyuan 030032, China;
    2. School of Stomatology, Hebei Medical University; Hebei Key Laboratory of Stomatology, Shijiazhuang 050017, China;
    3. Shanxi Lianmei Dental Technology Co. Ltd, Taiyuan 030000, China
  • Received:2018-07-06 Online:2019-01-18 Published:2019-01-28

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摘要： 目的: 探讨口内数字化印模制取方法对可摘局部义齿临床适合性的影响。方法:选择Kennedy第三类或第四类牙列缺损患者47例,采用硅橡胶印模灌制超硬石膏(传统模型组)和3shape Trios口内扫描仪制取数字化印模结合3D打印树脂模型(数字化模型组)两种方法为每一例患者制作两副铸造可摘局部义齿,检查义齿初戴过程中固位体、大连接体和基托与口内软硬组织的适合性和咬合的准确性并评分,对各项计分结果行χ2检验。结果:数字化模型组制作的可摘局部义齿固位体的适合性和咬合准确性优于传统模型组,差异有统计学意义(P<0.05);两组可摘局部义齿大连接体和基托的适合性差异无统计学意义(P>0.05)。结论:数字化印模结合3D打印树脂模型可提高可摘局部义齿与天然牙的适合性及义齿初戴时咬合的准确性。

关键词: 数字化印模, 3D打印, 可摘局部义齿, 临床适合性

Abstract: Objective: To investigate the influence of digital impression on the clinical adaptation of removable partial dentures (RPDs). Methods: Forty-seven patients with dentition defect of Kennedy Class Ⅲ or Class Ⅳ were selected, and two RPDs were made for each patient, respectively. The patients were taken impression by silicon rubber (the traditional model group) or intraoral digital scanning (the digital model group). The adaptation of retainers, major connectors, base plates, and the occluding accuracy of RPDs were examined and scored. The scoring results were analyzed by χ2 test. Results: The retainers' adaptation and occluding accuracy of RPDs fabricated by digital models were better than those fabricated by traditional models (P<0.05), and the adaptation of major connectors and base plates fabricated by two methods was not different (P>0.05). Conclusion: The adaptation of RPDs to natural teeth and the occluding accuracy at denture placement could be improved by digital impression combined with 3D printing resin model.

Key words: Digital impression, 3D printing, Removable partial denture, Clinical adaptation