COVID-19 global pandemic is spreading rapidly between close contacts through respiratory droplets. The most effective measures to combat and reduce infection outbreaks include social distancing, movement restrictions, and health sector capacity building, as well as public health. Scientists emphasize the importance of containing the number of positive cases without exceeding current doctors and hospital resources. They concluded that quarantine, particularly complete lockdown is effective in controlling the risk.
Furthermore, the mistakes reported during lockdown enforcement are the only measures to be taken when the infection rate peaks. In the highest infection rate, the intensive care unit needs to increase by 10 percent in only 24 hours if there is no lockdown. In China, complete and partial quarantines in COVID-19 outbreak areas were effective in containing the infection transmission. Mongolia declared a state of emergency and enforced quarantine on November 10, 2020, since the first positive case was reported. Without the quarantine, the number of positive cases is estimated to be 3.2 times higher.

Tuberculosis remains a major global health problem with 10.4 million incident cases in 2016. Although Mycobacterium tuberculosis is the causative agent, many environmental factors play a role in disease progression. Several respiratory hazards including smoking and indoor air pollution were suggested to increase the risk of tuberculosis, but only fewer studies has been conducted on the association between ambient air pollution and tuberculosis.
Mongolia is a one of the seven TB high burden countries in the WHO Western Pacific Region. In 2017, there were 3779 TB cases in Mongolia. Most of them were smear positive pulmonary cases. Mongolia achieved the regional WHO targets for finding and curing TB. Currently, case detection and treatment success rates have reached 72% and 84.0%, respectively.
Air pollution is hard to escape no matter how rich an area you live in, it is all around us. Also, air pillution is incerasingly serious problem in Mongolia. Globally it is estimated that 9 out of 10 breathe polluted air and about 7 million deaths are attributed to air pollution. It is estimated that 91% of the world’s population lives in area where the World Health Organization (WHO) Air Quality Guidelines are not met.
In addition, children are highly affected by air pollution because their lungs are still developing and the air pollution can interfere with this biological process, their bodies are less able to metabolize, detoxify and excrete the toxins contained in the air pollution. Many epidemiological and ecological studies were done in Mongolia toward to air pollution and health. However, it is still not clear how much indoor and ambient air pollution can cause to TB incidence in Mongolia.

Background An impotant step in maintaining smile to replace missing teeth. When teeth are missing, the remaining ones can change position, drifting the surruonding space. Teeth that are out of position can damage tissues in the mouth. A denture helps you properly chew food, a diffi cult task when you are missing teeth. In addition, a denture may improve speech and prevent sagging face by providing support for lips and cheeks. A partial denture is suitable for those who have some natural teeth remaining.While missing one and two adjacent teeth can often be best restored fi xed bridge or implant, partail denture work best to replace multiple missing teeth. Removable partial denture usually consist of replacement teeth attached to pink or gum- colored plastic bases, which are connected by framework. Removable patial dentures attach to your natural teeth with metal clasp or devices called precision attachment. Precision attachments are generally more estetic and cost more than those metal clasps. Denture with metal and wrought wire clasps are generally more fi t and stay in place much better than (provisional) denture. Objective The main purpose of this study is to develop of provisional denture. Materials and Methods This study has been used to study medicine. Enerel dental clinic served 1481 people whom they were made denture between 2003 and 2005. from those people were made denture with wrought clasp for 60 people. By experimental study, jawing activity test has been used by I.S.Rubinov method. Results Denture with wrought clasp needs was increasing gradually until 56 percents in 2003, 82.1 percents in 2004, 93 percents in 2005. A large number of denture with wrought clasp was made 32.4 percent of maxilla, 47.1 percent was mandible but this denture were used and suited for people 78 percent, 22 percent of people who made those type of denture did not and uncomfortable for them. Denture with wrought clasp jawing activity was 1.920.13 seconds and jawed things weight was1.89 0.1, lost of jawing activity was 2.691.44 (=0.001). Conclusion Method of denture with wrought clasp is simpler and nearly minted removable denture.