It's not that bad of a condition to be so panic-stricken. Let the lock down be over and visit a dentist. For thorough scaling.
As of now follow these,
1.Make sure you follow correct brushing technique which includes proper brushing of all surfaces of teeth.
Wipe off all surfaces of teeth with soft clean cotton cloth with moderate pressure which will further smoothen the teeth surfaces, that will lead to least accumulation of microorganisms on tooth surface >> less chances of caries initiation and further food lodgement >>less accumulation of calculus/ stain formation.
2. Use dental floss for removing interdental food lodgement which doesn't come out sometimes even after brushing.
3.luke warm water salt gargle after few times per day.
4.tongue cleaning thoroughly with tongue scraper
5.mouthwash: orahex pro or hexidine. Once in every two days. After food. Do not eat drink anything or rinse for half an hour after spitting out the mouthwash.
Next Steps
visit dentist for scaling and polishing.
Health Tips
avoid any kinds of tobacco chewing smoking habit, pan parag, khaini, guthkha etc.or alcohol consumption. which leads to poor oral hygiene as well as health.