Table 1 Prevalence of trauma to permanent teeth according to the variables analyzed in 12-year-old schoolchildren at the city of Brasília- DF- Brazil, in the year 2012

School

Public

588

14.63

11.76 – 17.49

Private

530

23.40

19.79 – 27.01

Lip coverage

Adequate

989

13.65

11.51 – 15.79

Inadequate

129

58.14

49.61 – 66.67

Overjet

Anterior maxilla

1064

18.89

16.53 – 21.25

Anterior mandible

11

27.27

0.91 – 53.63

Open bite

43

13.95

3.58 – 24.33

Sex

Male

536

21.27

17.80 – 24.74

Female

582

16.49

13.47 – 19.51

Educational level

Fundamental

210

12.86

8.32 – 17.39

High school

306

18.30

13.96 – 22.64

Graduation

494

20.44

16.88 – 24.01

Postgraduate

108

24.07

16.00 – 32.15

Income (real)

Up to 250

13

15.38

0.00 – 35.03

251 – 500

67

11.94

4.16 – 19.72

501 – 1500

291

18.21

13.77 – 22.65

1501 – 2500

141

17.73

11.42 – 24.04

2501 – 4500

143

16.09

10.05 – 22.11

4501 – 9500

206

21.36

15.75 – 26.96

> 9500

257

21.40

16.38 – 26.42