Abstract Modern computer-aided design and manufacturing (CAD/CAM) systems are widely used in the field of dental restorations due to their advantages such as speed and accuracy, which have effectively improved the manufacturing efficiency and product quality of restorations. This article aims to study the preliminary establishment of the (CAD/CAM) digital system in dental restoration. Based on the analysis of the common (CAD/CAM) digital system types, CAD/CAM database technology and the functional structure of the CAD/CAM system, To understand the difference between patients’ satisfaction with traditional dental prosthesis and CAD/CAM system-based dental prosthesis, this paper selects 60 patients with implant prosthesis admitted to a hospital as the research object, and investigates their satisfaction with oral prosthesis. The survey results showed that the satisfaction of the observation group at 3 and 6 months after surgery was significantly higher than that of the control group, and the difference was statistically significant.Keywords(CAD/CAM) Digital SystemDental restorationAll-ceramic abutment restorationPostoperative satisfaction

Abstract Reading anxiety is the fear and tension indirectly connected with the reading object. In the field of second language acquisition, the research mainly focuses on the reading anxiety of the uniqueness of the situation. Based on the specific practice of English reading teaching, this article discusses the current English reading anxiety problems, analyzes the main causes of the problems, and puts forward relevant countermeasures and suggestions to solve the English reading anxiety problems with the help of the platform combined with big data technology.KeywordsInfluenceBig dataEnglish readingAnxiety