False positives were present in every misdiagnosis. According to multivariate analysis, the severity of oral mucositis influenced the rate of correct diagnosis. After three months, there was no regrowth in ten of the cases with residual tumors and five of the six cases whose sizes could be measured. The analysis of the receiver operating characteristic curve revealed that the rate of getting the right diagnosis took 72 days. In December 2019, the coronavirus disease 2019 was discovered in China and quickly spread throughout the world. The World Health Organization estimates that 80 million people worldwide were infected, resulting in over 1.8 million deaths as of January 2021.The pandemic has had an impact on clinical practice as well as everyday life. Droplet infection or contact infection is the methods by which the virus can be passed from one person to another. The infection has been reported to have spread to general hospitals and nursing homes in Japan. As a result, in order to prevent the spread of infection, many dental clinics and hospitals restricted outpatient and inpatient care during the so-called first wave in 2020. From June 2020 to August and November 2020, the number of newly infected patients increased again, despite a brief decrease. The likely highly transmissible variant that was spreading in the United Kingdom was also found in Japan in December 2020, and the infection is still spreading there. In daily clinical practice, oral and maxillofacial surgeons are constantly exposed to saliva, droplets, and aerosols containing the causative virus, the severe acute respiratory syndrome coronavirus, which can infect the oral cavity and its surrounding structures. Thankfully, there have been no reports of transmission from patients to medical professionals during oral and maxillofacial surgical procedures or treatments. However, during Tran's nasal pituitary surgery, cases of medical professionals becoming infected have been reported in neurosurgery. Due to a lack of sufficient data, it is not always possible to determine the risk that is associated with oral and maxillofacial surgical procedures and treatments among medical professionals. We present a guide that should be referred to whenever surgical procedures in the oral and maxillofacial areas are performed in order to promote infection prevention and provide sufficient attention to and control against exposure to the virus, given the incidence of infection during surgery in associated clinical fields. Items on preoperative preparation, preoperative evaluation, and surgical performance, intraoperative equipment, and the operating room environment are included in the guide.

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With Regards,
Sara Giselle
Associate Managing Editor
 Journal of Medical Physics and Applied Sciences