Skip to main content

Table 5 Oral hygiene habits, general health, vitamin C supplements, and frequency of swimming in relation to the prevalence of dental erosion

From: The prevalence of dental erosion and associated risk factors in 12-13-year-old school children in Southern China

Variables

Total No. of children

Dental erosion

 
  

No. of children

%

P

Frequency of brushing

    

   Once or less daily

459

136

29.6

0.281

   Twice or more daily

1040

280

26.9

 

Duration of brushing

    

   ≤1 min

266

73

27.4

0.908

   2 min

702

192

27.4

 

   ≥3 min

531

151

28.4

 

Types of toothpaste

    

   Fluoride

656

170

25.9

0.333

   Non-fluoride

74

20

27.0

 

   Not sure

769

226

29.4

 

Vomiting

    

   Once or more monthly

16

2

12.5

0.171

   Never/occasionally

1483

414

27.9

 

Heartburn or nausea

    

   Once or more monthly

9

0

-

0.136

   Never/occasionally

1490

416

27.9

 

Vitamin C supplements

    

   Yes

273

78

28.6

0.749

   No

1226

338

27.6

 

Frequency of swimming in summer

    

   Once or more weekly

732

193

26.4

0.229

   Never/occasionally

767

223

29.1

 
  1. Chi-square test