Table 3 Frequencies of respondents’ opinions about RA practice, measured on a 5-point Likert scale (scores 1 to 5)

Patients/parent are satisfied with relative analgesia.

3

1

10

41

70

4.3 (1.0)

2

I am satisfied with the outcomes of relative analgesia.

3

5

21

36

61

4.2 (1.1)

1

The cost of the relative analgesia equipment is a problem to purchase it. *

8

8

11

32

64

4.0 (1.4)

4

Relative analgesia is effective for my patients.

5

9

16

48

49

4.0 (1.1)

0

Brazilian dentists’ acceptance of relative analgesia complicates its use because of cultural aspects.*

17

9

19

55

27

3.5 (1.3)

0

Patients/parents’ acceptance of relative analgesia complicates its use because of cultural aspects.*

18

19

16

47

26

3.3 (1.4)

1

Cost of relative analgesia could hinder acceptance by patients/parent.*

19

23

20

44

21

3.2 (1.3)

0

Brazilian anesthesiologists’ opposite opinions on relative analgesia performed by dentists inhibits it use.*

32

19

14

37

25

3.0 (1.5)

0

Environmental risk of nitrous oxide could be a limiting factor for the use of relative analgesia.*

60

27

21

15

4

2.0 (1.2)

0