Objective

2

To investigate the oral caries' and the oral health care's conditions of pre-school deaf children and analyze caries related factors among deaf children.

Method

2

To check caries of 115 deaf children and 156 health children and questionnaire surveys were promoted among guardians of 107 deaf children and 163 health children

SPSS 22.0 software was used for statistical analysis of the data.

Results

2

There are no significant differences in the DMFTs and rate of caries between deaf children and health children (

P

>

0.05).There are no significant differences in the DMFTs and rate of caries between deaf children and health children. There are no significant differences in the rate of sugar intake

sugar drink intake and sugar food before sleeping (

P

>

0.05). In the aspect of 4 kinds of oral knowledge

there are no significant differences in 3 questionnaire surveys (

P

>

0.05)

but there are significant differences in 1 questionnaire survey (

P

<

0.01). There are significant differences in the rate of tooth brushing

1 time and more tooth brushing per day

tooth curing and usage of fluorine tooth paste (

P

<

0.01).

Conclusion

2

There are no differences between deaf children and health children in the aspect of tooth caries' severity.There are no difference in the habit of sweet food intake between 2 groups. The knowledge of oral health care is poorer in guardians of deaf children. Deaf children perform poorer in the aspect of oral health behavior compared with health children.