Int J Stomatol

Int J Stomatol ›› 2020, Vol. 47 ›› Issue (3): 297-303.doi: 10.7518/gjkq.2020041

• Case Reports • Previous Articles     Next Articles

Computer aided design and computer aided manufacturing-constructed polyetheretherketone removable partial dentures: a clinical report

Lu Yuqing,Min Jie,Chen Xin,Liu Chunxu,Dong Bo,Yue Li,Yu Haiyang()   

  1. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics 2, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2019-07-05 Revised:2019-12-05 Online:2020-05-01 Published:2020-05-08
  • Contact: Haiyang Yu E-mail:yhyang6812@scu.edu.cn
  • Supported by:
    Innovation Project of Graduate Education and Teaching Reform of Education Department of Sichuan Province(2014)

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Abstract:

Polyetheretherketone (PEEK) is a novel polymer compound with desirable mechanical properties and biosafety. It has been gradually used in the fields of prosthodontics, implantation, and orthodontics in recent years. Although the clinical application of PEEK in the frameworks of removable partial dentures has been reported, no related clinical studies on removable partial dentures fabricated with PEEK have been reported. In this case, a digital workflow was used to fabricate removable partial dentures with frameworks, artificial teeth, and bases using PEEK as the denture material. Immediate restoration was conducted on an 83-year-old patient with maxillary and mandibular dentition defects. Satisfactory results were observed at 3-6 months follow-up after treatments.

Key words: polyetheretherketone, removable partial denture, computer aided design

CLC Number: 

  • R783.1

TrendMD: 

Fig 1

Intraoral condition"

Fig 2

Scanning of the plaster models and occlusal relationship"

Fig 3

The design of removable partial dentures"

Fig 4

Export STL data of the dentures"

Fig 5

The completed PEEK removable partial denture"

Fig 6

Restorative effect"

Tab 1

Comparison of the advantages and disadvantages of removable partial dentures with 3 materials"

材料 优点 缺点
常规金属支架可摘局部义齿 1）高强度 1）制作步骤多、加工时间较长、需多次复诊
2）耐疲劳,不易变形 2）美观性较差
3）耐腐蚀 3）较重,舒适度一般
4）性能稳定、可靠 4）成品人工牙有时无法满足患者的个性化需要
5）不易复制
PEEK支架可摘局部义齿 1）可保护基牙 1）制作步骤多、加工时间较长、需多次复诊
2）质轻、舒适度高 2）可能加重牙槽嵴的负担
3）美观、无金属色 3）成品人工牙有时无法满足患者的个性化需要
4）易于复制 4）不易复制
5）长期修复效果有待观察
整体切削PEEK可摘局部义齿 1）制作步骤少、加工时间短,可即刻修复 1）适用于后牙缺失,修复前牙时需饰面
2）可个性化设计人工牙 2）可能加重牙槽嵴的负担
3）不存在多材料结合界面,避免人工牙脱落等情况 3）长期修复效果有待观察
4）可保护基牙
5）质轻、舒适度高
6）美观、无金属色
7）易于复制
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