| COVID-19 | Coronavirus disease-19 |
| WHO | World Health Organization |
| PPE | Personal Protective Equipment |
| DCI | Dental Council of India |
| UDMRI | Uttaranchal Dental and Medical Research Institute |
| PIS | Participant Information Sheet |
| MERS | Middle East Respiratory Syndrome |
| SARS | Severe Acute Respiratory Syndrome |
| M | Mean |
| S.D | Standard Deviation |
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