Table 3 Attitude and practice toward impression disinfection (N = 718)

Dental Impressions of COVID-19 suspected patients should be rinsed thoroughly under running tap water before disinfection to remove as much bioburden as possible.

49.0

45.4

52.7

31.5

28.2

34.9

11.6

9.4

14.1

4.2

2.9

5.8

3.8

2.5

5.3

Washing hands is important before making impressions of COVID-19 suspected patients

59.5

55.8

63.0

24.0

20.9

27.2

12.3

10.0

14.8

2.2

1.3

3.5

2.1

1.2

3.3

Washing hands is important after making impressions of COVID-19 suspected patients

76.7

73.5

79.7

14.9

12.4

17.6

5.4

4.0

7.3

1.4

0.7

2.5

1.5

0.8

2.6

Washing tray is important before making of impressions of COVID-19 suspected patients

38.3

34.8

41.9

20.3

17.5

23.4

24.2

21.2

27.5

11.8

9.6

14.4

5.3

3.8

7.1

Scrubbing of the impression before disinfection is important in COVID-19 suspected patients

27.4

24.3

30.8

18.7

15.9

21.6

24.1

21.1

27.3

18.9

16.2

21.9

10.9

8.7

13.3

The practice of impression disinfection

Always

%

Sometimes

%

Not sure

%

Never

%

Wash the impression of COVID-19 suspected patients immediately after removal

70.5

67.1

73.7

8.6

6.7

10.9

15.9

13.3

18.7

5.0

3.6

6.8

Carryout disinfection of the impression of COVID-19 wearing personal protective equipment

73.8

70.5

76.9

11.7

9.5

14.2

9.7

7.7

12.1

4.7

3.4

6.5

Follow disinfection protocol and store the disinfected impression of COVID-19 patients in a sealed plastic bag?

76.3

73.1

79.3

11.0

8.9

13.4

9.6

7.6

11.9

3.1

2.0

4.5

Prefer digitalization of impressions of COVID-19 patients to reduce the risk of cross-contamination

55.0

51.4

58.6

20.6

17.8

23.7

17.5

14.9

20.5

6.8

5.2

8.8

Indicate the risk of infection on the prescription and specify the disinfection practices carried out

51.8

48.2

55.5

24.9

21.9

28.2

17.1

14.5

20.0

6.1

4.5

8.1