From: An overview of oral health status, socio-economic and behavioral risk factors, and the pattern of tooth loss in a sample of Egyptian rural population
Age range
Oral hygiene
Correlation (r)
p value
Excellent
Very good
Good
Poor
18–70
(0)
3 (0.5%)
131 (24. 6%)
397 (74.9%)
0.393
0.000*