West China Journal of Stomatology ›› 2020, Vol. 38 ›› Issue (4): 475-478.doi: 10.7518/hxkq.2020.04.022

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A technique to design the framework of removable partial denture by multi-stage expert system

Chen Xin(), Mao Bochun, Xie Chenyang, Zhang Qianqian, Sun Jikui, Yue Li, Yu Haiyang()   

  1. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Dental Technology, West China School of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2019-10-25 Revised:2020-05-14 Online:2020-08-01 Published:2020-08-03
  • Contact: Yu Haiyang E-mail:yhyang6812@foxmail.com
  • Supported by:
    Chengdu Science and Technology Benefiting People Project(2016-HM02-00018-SF)


This study aims to apply a new expert system to design removable partial denture (RPD) framework. The RPD design is completed in three steps, namely, “selecting missing teeth”, “selecting abutment condition”, and “selecting personalized clasp”. The system can help auxiliary dentists develop personalized treatment plans to reduce their clinical workload. It can also generate a dental preparation guideline for clinical preparation, which can prevent tooth preparation mistakes. By generating the standard electronic drawings of the framework design, the system can reduce the inconvenience caused by manual drawing, thereby facilitating dentist-technician communication and reducing the rate of remade.

Key words: expert system, prosthodontics, removable partial denture, framework

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