[Recent Developments and Future Directions of Oral Healthcare System and Dental Public Health System in China in Light of the Current Global Emergency].

The study is aimed to help promote the development of the oral healthcare system and dental public health system in China and to help achieve the goal of improving the nation's oral health. We herein provided an overview and critical evaluation of recent developments in oral healthcare systems and dental public health systems in China and other countries, and discussed a number of potential directions for the future development of dental public health. The current global public health emergency of the coronavirus disease 2019 (COVID-19) pandemic was also taken into account in our discussions. Thus, to facilitate the accomplishment of the goals of the Healthy China 2030 Program, we suggested the establishment of a community-based, prevention-oriented model for the oral healthcare system and dental public health system. The model we proposed features the integration of oral and general health services, the utilization of technological innovations and big data concerning health, and a forceful promotion of remote dental services focused on prevention and early diagnosis and treatment. Furthermore, under the background of COVID-19 becoming a normal part of people's lives, we should adopt differentiated prevention and protection measures and emergency response preplans appropriate for the actual epidemic situation of a particular region so that clinical services are strengthened while unnecessary wastes of resources are avoided. We should actively explore for alternative approaches to care in the face of special circumstances.

Online Teaching Practices and Strategies for Inorganic Chemistry Using a Combined Platform Based on DingTalk, Learning@ZJU, and WeChat

Due to the COVID-19 outbreak an online inorganic chemistry course for engineering students was set up at Zhejiang University for the 2020 spring semester. In this study, we will be using this course as an example of how to offer efficient methods for online teaching in chemistry. Applications such as DingTalk, WeChat, and the Learning@ZJ1J Web site were combined to establish a network platform to smoothly carry out this course. Personal insights on high-quality online teaching for inorganic chemistry are also discussed. Taken into consideration for online teaching and learning attributes, special screening background, scientific story and history, research frontiers, and interesting activities were incorporated to attract the attention of students in class. Study has found that these students performed very well in their two examinations, which confirmed that our established online platform and strategies are highly effective for teachibg and learning.