Chinese Journal of Stomatological Continuing Education ›› 2023, Vol. 26 ›› Issue (2): 87-94.DOI: 10.12337/zgkqjxjyzz.2023.02.001

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Evaluation of clinical effect of modified intra-oral scan in implantation and restoration of edentulous patients

Yuwei Wu1, Jia Cao1, Jun Qian1, Li Yang1, YiJiao Zhao2, Yong Wang2, Zhihui Tang1,*   

  1. 1Peking University School of Stomatology,2nd Dental Center, Beijing, P.R. China;
    2NHC Research Center of Engineering and Technology for Computerized Dentistry, Peking University School of Stomatology, Beijing, P.R. China
  • Online:2023-03-31 Published:2023-03-21
  • Contact: Zhihui Tang. Tel: 010-82196237. Email: tang_zhihui@live.cn. Address: B5 Anli Garden, #66 Anli Road, Chao Yang District, Beijing 100101, P.R. China.
  • Supported by:
    National Key Research and Development Program of China, the key technology research and development for additive manufacturing of personalized dental implant , maxillofacial bone and temporomandibular joint (No. 2016YFB1101200)

Abstract: Objective: To evaluate the clinical effect of modified intra-oral scan in implantation and restoration of edentulous patients. Methods: The position of multiple implants in an edentulous patient was recorded by modified scan body with extensional structure to increase the accuracy of digital impressions, and the prosthesis was designed and made by computer aided design/computer aided manufacturing(CAD/CAM). Results: The prosthesis made for edentulous patient achieved passive positioning in the mouth. Through X-ray examination, there was no gap between the Uni-abutment and the cutting support. Conclusion: New digital techniques such as modified intra-oral scan technology could provide a reliable alternative to conventional impression.

Key words: digital impression, edentulous, implantation, intra-oral scan, computer aided design/computer aided manufacturing(CAD/CAM)