Preventive and Control Measures for the Coronavirus Pandemic in Clinical Dentistry.

A severe public health crisis has been declared worldwide since coronavirus disease 2019 (COVID-19) was classified as a pandemic of acute respiratory infectious disease by the World Health Organisation (WHO). China has taken strict measures to curb the spread of the disease to save lives, and has managed to control the outbreak. COVID-19 is mainly transmitted through respiratory droplets and close physical contact, so it is challenging to prevent nosocomial infection and possible spread during dental treatment. Since the initial phase of the COVID-19 outbreak, a disease prevention and control strategy based on the new concept of population risk classification and rational use of personal protective equipment has been implemented by the Peking University Hospital of Stomatology. Nosocomial infection prevention and control concepts and measures relating to dental diagnosis and treatment are critically checked in the hospital. Our experiences in handling this situation are shared here and may have wide-ranging implications for infection prevention and control (IPC) for COVID-19 in dental practices worldwide.

[Analysis of HIV antibody positive cases in Peking University Hospital of Stomatology during 9 years].

PURPOSE: To investigate the prevalence and characteristics of HIV patients found in Peking University Hospital of Stomatology during 9 years, and provide management strategy for early diagnosis and control of HIV in Stomatology Hospital. METHODS: A retrospective study of the HIV positive patients diagnosed by HIV antibody screening was carried out. The related information about these patients found in Peking University School of Stomatology during 2005-2013 was obtained from China Disease Control Information System. RESULTS: 68,562 patients accepted HIV antibody screening in Peking University Hospital of Stomatology during 2005-2013. Thirty one patients were found HIV antibody positive. The ratio of HIV antibody positive was about 0.045%, which was composed of 25 males and 6 females. 61.29% patients aged between 20-40 years, and their career was mainly commercial service with a education level of junior high school. The proportion of sexual route of transmission was about 74.91%, and 34.78% of them were male homosexuality. Most of the patients with HIV antibody positive were found in the out-patient clinic, especially in the department of oral mucosal diseases, accounting for 70.97%. CONCLUSIONS: HIV antibody positive rate in Peking University School of Stomatology was slightly lower than that in general hospitals. Medical staff should increase their awareness of AIDS prevention and control, for higher HIV risk departments, such as oral mucosal diseases and periodontal disease, efforts should be made to increase HIV screening, expand the scope of screening, and promote provider-initiated HIV testing and counseling.

[An investigation analysis of prophylactic application of antibiotics in ten types of oral and maxillofacial surgery].

OBJECTIVE: To evaluate the prophylactic application of antibiotics in oral and maxillofacial surgery and to provide a scientific basis for its reasonable use. METHODS: The use of prophylactic antibiotics in the oral and maxillofacial surgery was conducted in our hospital from January 2011 to August 2013 based on a retrospective survey, and the conditions and affecting factors were analyzed. RESULTS: The utilization rates of prophylactic antibiotics were respectively 98.9%, 61.8%, and 24.6%, showing a downward trend. But the infection rate of surgical site did not significantly increase, and by Fisher's exact test, the difference was not significant (P>0.05). Surgical site infections (SSI) rates did not rise between using and not using prophylactic antibiotics (P>0.05). CONCLUSION: The use of prophylactic antibiotics is greatly influenced by the policy, and along with the decline in antibiotic usage, SSI have not increased significantly.