Use of protective devices among dentists in different surveys (%)
| Reference | Country | Gloves | Masks | Glasses |
| Grace et al198938 | USA | 87.7 | 63.2 | 82.7 |
| Woo et al199232 | USA | 80 | — | 63 |
| Angelilloet al199337 | Italy | 56.1 | 49.1 | 48.3 |
| Gibsonet al199530 | USA | 95 | 83 | — |
| McCarthyet al199740 | Canada | 94 | 79 | 84 |
| McCarthy and MacDonald 199833 | Canada | 91.8 | 74.8 | 83.6 |
| Present research | Italy | 94.7 | 94.7 | 90.9 |