Research Progress of Zirconia All-Ceramic Crowns via Stereolithography 3D Printing

Abstract

Abstract: Dental diseases such as dental caries and periodontitis often lead to tooth loss, which is common in China. Clinically, oral restoration is mainly used for treatment. Zirconia, with excellent mechanical properties, good biocompatibility and better aesthetic performance, has become an ideal restorative material in the field of dental restoration. Traditional computer aided design/computer aided manufacturing (CAD/CAM) subtractive manufacturing has the high processing accuracy and good marginal adaptation, but it has shortcomings such as material waste, tool wear and insufficient accuracy in the production of occlusal grooves. As a typical representative of rapid prototyping technology, additive manufacturing (3D printing) meets basic requirements for building precision, personalization and structural complexity all-ceramic crowns, and is expected to be a potential technology for the preparation of all-ceramic crowns. The progress of domestic and foreign research teams in the development and application of zirconia all-ceramic crowns using stereolithography 3D printing were reviewed. The ceramic slurry composition, design of printing process support structure, optimization of printing parameters, post treatment process route and evaluation of the performance of the printed products were reviewed and analyzed accompanying by a large number of examples for explanation. Finally, the challenges that will be faced in the future in the field of zirconia all-ceramic crowns via stereolithography 3D printing have been pointed out, and some suggestions have been provided.

Key words: oral restoration, all-ceramic crown, zirconia, additive manufacturing (3D printing), stereolithography, slurry, mechanical property

CLC Number:

TQ174

ZHOU Yuanheng, CHEN Caijun, GE Junxian, WANG Jiaxin, WEI Ruiyong, XING Zhanwen. Research Progress of Zirconia All-Ceramic Crowns via Stereolithography 3D Printing[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(6): 2150-2160.

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