Table 1.

Occupational risk levels during the pandemic. The classification of health workers in dental setting into four levels depending on occupational class, age, their medical co-morbidities, and other factors [13]

Risk levels	Highly critical (Any 3 factors) Level A	Critical Level B	Semi critical Level C	Non critical Level D
Occupational class	Dentists, Dental Students, Nurses	Dentists, Dental Students, Nurses	Non clinical nurses, lab technician	Receptionists, Security personal, waste workers and cleaners
Age	Above 70 s	Less than 50 s	Less than 50 s	Less than 50 s
Medical Status	Immune deficiencies or upper respiratory track disease	Medically fit*	Medically fit	Medically fit
Geographical area	Countries which declared as epicenter of the disease	Any country involved with COVID-19	500–1000 new case/ daily	500–1000 new case/ daily
High-population-density work environments	Hospital	Hospital, or dental clinic	Hospital, or dental clinic	Hospital, or dental clinic
Work modification	Advised not to work	Standard + contact + enhanced airborne precautions	Standard precautions	Standard precautions
Level modification	N/A	N/A	It can be B if: Above 70 s and with Medical problem or living in epicenter of infection	N/A

*In case of immunologically compromised health worker, restricted to non aerosol generating dental procedures