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A Novel Computer-Aided Method to Fabricate a Custom One-Piece Glass Fiber Dowel-and-Core Based on Digitized Impression and Crown Preparation Data
Chen, Zhiyu1; Li, Ya2; Deng, Xuliang3; Wang, Xinzhi1
关键词CAD CAM technique optical 3D digitization sectional dual-arch impression
刊名JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY
2014-06-01
DOI10.1111/jopr.12102
23期:4页:276-283
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Dentistry, Oral Surgery & Medicine
资助者Research Fund for the Doctoral Program of Higher Education of China ; Research Fund for the Doctoral Program of Higher Education of China
研究领域[WOS]Dentistry, Oral Surgery & Medicine
关键词[WOS]ENDODONTICALLY TREATED TEETH ; HUMAN ROOT DENTIN ; CLINICAL-TRIAL ; CERAMIC POST ; ARCH ; RESTORATION ; COMPOSITES ; DIMENSIONS ; PREMOLARS ; THICKNESS
英文摘要

Purpose Fiber-reinforced composite dowels have been widely used for their superior biomechanical properties; however, their preformed shape cannot fit irregularly shaped root canals. This study aimed to describe a novel computer-aided method to create a custom-made one-piece dowel-and-core based on the digitization of impressions and clinical standard crown preparations. Materials and Methods A standard maxillary die stone model containing three prepared teeth each (maxillary lateral incisor, canine, premolar) requiring dowel restorations was made. It was then mounted on an average value articulator with the mandibular stone model to simulate natural occlusion. Impressions for each tooth were obtained using vinylpolysiloxane with a sectional dual-arch tray and digitized with an optical scanner. The dowel-and-core virtual model was created by slicing 3D dowel data from impression digitization with core data selected from a standard crown preparation database of 107 records collected from clinics and digitized. The position of the chosen digital core was manually regulated to coordinate with the adjacent teeth to fulfill the crown restorative requirements. Based on virtual models, one-piece custom dowel-and-cores for three experimental teeth were milled from a glass fiber block with computer-aided manufacturing techniques. Furthermore, two patients were treated to evaluate the practicality of this new method. Results The one-piece glass fiber dowel-and-core made for experimental teeth fulfilled the clinical requirements for dowel restorations. Moreover, two patients were treated to validate the technique. Conclusion This novel computer-aided method to create a custom one-piece glass fiber dowel-and-core proved to be practical and efficient.

语种英语
所属项目编号20090001110099
资助者Research Fund for the Doctoral Program of Higher Education of China ; Research Fund for the Doctoral Program of Higher Education of China
WOS记录号WOS:000337635000003
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/62327
专题北京大学口腔医学院_口腔修复科
作者单位1.Peking Univ, Sch & Hosp Stomatol, Dept Prosthodont, Beijing 100081, Peoples R China
2.First Hosp Shijiazhuang City, Dept Dent, Shijiazhuang, Hebei, Peoples R China
3.Peking Univ, Sch & Hosp Stomatol, Dept VIP Dent Serv, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Chen, Zhiyu,Li, Ya,Deng, Xuliang,et al. A Novel Computer-Aided Method to Fabricate a Custom One-Piece Glass Fiber Dowel-and-Core Based on Digitized Impression and Crown Preparation Data[J]. JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY,2014,23(4):276-283.
APA Chen, Zhiyu,Li, Ya,Deng, Xuliang,&Wang, Xinzhi.(2014).A Novel Computer-Aided Method to Fabricate a Custom One-Piece Glass Fiber Dowel-and-Core Based on Digitized Impression and Crown Preparation Data.JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY,23(4),276-283.
MLA Chen, Zhiyu,et al."A Novel Computer-Aided Method to Fabricate a Custom One-Piece Glass Fiber Dowel-and-Core Based on Digitized Impression and Crown Preparation Data".JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY 23.4(2014):276-283.
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