Table 3

Frequencies of respondents’ opinions about RA practice, measured on a 5-point Likert scale (scores 1 to 5)
Absolute frequencies Scores’ mean (SD) Did not answer (n)

1

Strongly disagree

2

Disagree

3

Neutral

4

Agree

5

Strongly agree

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

* Scores were reversed for calculation of Cronbach’s alpha, and the sum of the scores.

Cronbach’s Coefficient Alpha = 0.64.

Daher et al.

Daher et al. BMC Oral Health 2012 12:21   doi:10.1186/1472-6831-12-21

Open Data