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First 5000 Characters:Line plots were used to illustrate temporal trend of the variables. Mean ± standard deviation and median with interquartile range were used to summarize the variables. The Kruskal-Wallis equality-of-populations rank test was used to compare the difference between groups.
Results: A significant decrease was noted in the monthly average number of patients seeking the outpatient services for the year 2020. The monthly numbers of patients seeking outpatient services were decreased by two thirds from 2018 to 2020. The number of emergency cases also decreased significantly by 64% in 2020. The monthly number of teaching hours decreased from 3.8 ± 1.5 in 2018 and 4.7 ± 1.4 in 2019 to 1.7 ± 1.9 in 2020. The number of interns also decreased more than 70% in 2020.
The impacts of COVID 19 in the stomatology clinic were significant with notable decreases in clinical services and education offered to the stomatology students. We must find solutions to keep as many as needed dental profession stay on thriving and to remain on the frontline of healthcare.
As a public health emergency of international concern, the severe acute respiratory syndrome coronavirus 2 (COVID-19) pandemic has resulted in over 23 million confirmed cases and 809 thousand deaths worldwide by August 23, 2020. [1, 2] According to the current evidence, COVID-19 virus is primarily transmitted between people through respiratory droplets and person-to-person contact routes. [3, 4] Dental patients who cough, sneeze, or receive dental treatment including the use of a high-speed handpiece or ultrasonic instruments make their secretions, saliva, or blood aerosolize to the surroundings.  Due to the characteristics of dental settings, the risk of cross infection may be high between dental practitioners and patients, and dental practitioners are at high risk of acquiring an infection while treating patients.
 The impact of coronavirus on the dental community is eminent, the big challenge is how we can offer dental treatment despite the outbreak.[6, 7] Dental education programs and academic activities will also suffer from the ramifications of the pandemic. The aim of this study was to depict the impacts of the COVID-19 epidemic on the clinical practices and academic activities of the department during January to June, 2020.
. CC-BY-NC-ND 4.0 International license It is made available under a is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. (which was not certified by peer review) preprint
The copyright holder for this this version posted September 11, 2020. . https://doi.org/10.1101/2020.09.11.20192450 doi: medRxiv preprint
We obtained historical data of the department from the Health Information System of the General Hospital of the Central Theater Command, Wuhan, China. The data were in monthly statistics and grouped into three broad categories (clinical services, education and academic activities/communication) between January 2018 and June 2020 to determine the impacts of COVID-19 on the department. Variables under clinical services included number of outpatient cases, emergency cases, operation cases, hospitalization and discharge of patients; numbers of interns and teaching hours were variables under education, while number of people attending scientific conference, lectures given by the personnel of the department, personnel study outside, and outside visitors to the department were variables for academic activities. Line plots were used to illustrate temporal trend of the variables during the study period. Mean ± standard deviation and median with interquartile range were used to summarize the variables. The Kruskal-Wallis equality-of-populations rank test was used to compare the difference between the medians of the variables during the same time period, i.e. There were no human subjects involved in the study, and only aggregated data were used in the analysis, and no private and confidential information could be disclosed, therefore the ethical approval is not applicable.
According to the results of this study, there was a decrease in the number of patients seeking clinical services in the stomatology clinic beginning January 2020. The month of February 2020 recorded almost zero patients in all variables for clinical services. Figure 1 shows a . CC-BY-NC-ND 4.0 International license It is made available under a is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. (which was not certified by peer review) preprint
The copyright holder for this this version posted September 11, 2020. . https://doi.org/10.1101/2020.09.11.20192450 doi: medRxiv preprint continuous trend of all the clinical services until the month of January 2020 when a decrease began. However, from the month of April 2020, an increase in the number of patients starts to be observed again. The monthly number of patients seeking the outpatient services during January and June was decreased by two third