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14 rev port estomatol med dent cir maxilofac. 2018;59(1):10-17

Table 4. Application of the Chi-Square test for analysis of the association between aphthae and predisposing factors
Does your child Does your How many Is your child Does he/she How often How often
have any child have times a day currently often put does your does your
gastrointestinal any allergies? does your wearing an pens/pencils child ingest child ingest
disorders? child brush orthodontic in the oral green legumes?
their teeth? appliance? cavity? vegetables?
How often do t 9.506 3.441 3.667 4.043 1.510 14.628 10.489
aphthae appear
in your child’s df 3 3 6 3 3 9 12
oral cavity? p 0.023 0.328 0.722 0.257 0.680 0.102 0.573
t – value; df – degrees of freedom; p – value.

No. Respondents No. Respondents

When aphthae appear, do you usually
take some measure to treat them?
Do your parents have aphthae frequently?
Figure 3. Family history of RAS Figure 4. Therapies applied

Table 5. Types of therapy and access to therapies
Frequency Percentage Valid percentage
Valid Topical 77 42.1 95.1
Systemic 1 0.5 1.2
Topical home medicine 3 1.6 3.7
Total 81 44.3 100.0
Missing System 102 55.7
Total 183 100.0
Valid Own initiative 17 9.3 21.0
Pharmacist 37 20.2 45.7

Dentist 6 3.3 7.4
Family doctor 13 7.1 16.0
Pediatrician 8 4.4 9.9
Total 81 44.3 100.0
Missing System 102 55.7
Total 183 100.0