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The prevalence of COVID-19 in the world has caused stress among individuals due to fear of infection and economic and social harm. Research has shown that patients and even healthy people experience some neuropsychiatric symptoms, and changes in the endocrine and immune systems suggest a link between SARS-CoV-2 and changes in the brain and behavior. The interaction of these factors on the mental health of patients. Therefore, people are required to define the boundaries of their relationships and must define some boundaries in order to protect themselves and their mental health. Therefore, controlling this crisis requires medical, ethical and psychiatric care. In this article, considering the effects of Covid-19 on the psychological dimension, the therapeutic effect of science entitled "Psychoneuroimmunoendocrinology", which shows the interaction between mind and body, is described. There are also solutions to have a healthy mind and modulate the immune system. Finally, in order to get acquainted with this scientific field and its importance, research centers and scientific journals that work in this field are introduced

Tooth decay is the most common chronic disease of man in the world and dentists should receive the capability to accurately diagnose of tooth decay during the training courses. In addition to clinical examination, the panoramic view and intraoral radiography is usually used for the caries detection. Therefore, the detection of caries on X-ray images can have a role in treatment planning.
In this analytical study, 10 panoramic radiographies that randomly selected, separately given to 30 senior dental students and 2 professors (in order to determine the gold standard). Data were analyzed using SPSS 17 software, diagnostic tables and indexes were prepared and the results were analyzed by Kappa test. Moreover, in order to determine the agreement between the professors and students about the depth of the decay the weighted kappa coefficient was used.
The kappa value about detection of presence or absence of proximal caries between professors and students's diagnosis was 0.428 (P value=0.001). Diagnostic sensitivity, specificity, positive predictive value and negative predictive value obtained by students in caries detection were %47, %91.9, %63 and %85.3, respectively. Coefficient of agreement in detection of depth diagnosis obtained by professors and students was 0.361(p value=0.000).
The diagnostic capability of senior dental students about caries detection was fair and depth diagnosis was slight.