Covid 19 pandemic is one of the worst pandemics in the world. Indonesia also affected with this pandemic with high mortality numbers. But with time, people must do their activity again outside their home. Car is one of transportation option in DKI Jakarta with large quantity. Many people using car but lack of understanding on how to keep clean in riding a car, as private or public vehicle. Purpose of community service (PkM) is to educate one of car community in DKI Jakarta which is White Car Community chapter Batavia which consist of various of people from many places in DKI Jakarta which owns white car. The implementation was done online on December 13, 2020. In this program before and after education, was given a questionnaire on how to keep clean in riding car to see the knowledge of the community member in keeping clean while riding a car. In result this community service increase awareness and knowledge of Covid-19 in community member of White Car Community chapter Batavia. Similar activity needed to be done because of fluctuation transmission of covid-19.

Background: As someone gets older, changes in saliva and tooth loss are a few of changes that occur in the oral cavity. Dentures are designed to replace missing teeth and can improve mastication, pronunciation, and aesthetics, as well as maintain tissue health and in the oral cavity. Changes in the composition of saliva occur in the elderly, causing saliva production to malfunction and resulting in complaints of dry mouth or xerostomia.reaching the elderly age, the composition of their saliva changes, causing saliva production to malfunction and resulting in complaints of dry mouth or xerostomia. Xerostomia causes discomfort when wearing dentures and causes pain in edentulous patients who wear dentures, it can interfere with chewing, swallowing, tasting, and speaking. Aim: To analyze and identify the description of removable partial denture users with xerostomia in the elderly. Methods: This type of research is descriptive observational with a cross-sectional approach, and the sample population is the elderly with the criteria of age 60 years and over in a nursing home in the Tangerang area, with a purposive sample technique of up to 160 respondents. Data collection via video call using the Summate Xerostomia Inventory and Geriatric Oral Health Assessment Index questionnaires with online Google Forms. Results: A total of 63 respondents (41.7%) reported a good level of comfort, 65 respondents (43%) reported a moderate level of comfort, and 23 respondents (15.2%) reported a poor level of comfort. Conclusion: The majority of elderly people who have xerostomia and wear removable partial dentures fall into the moderate category, which means they are doing well.