Prevalence and Reasons for Tooth Loss in a Sample from a Dental Clinic in Brazil

Table 3

Number and percentage (%) of teeth extractions by age group.

Age group	Number of teeth	% of teeth extracted	Mean number of
			teeth extracted
15–19	64	8.0	2.1
20–24	51	6.4	1.9
25–29	24	3.0	1.0
30–34	45	5.6	1.2
35–44*	131	16.4	2.3
45–54*	163	20.4	2.2
55–64*	180	22.5	1.9
65–74	105	13.1	1.8
75–84	37	4.6	1.2
15–81	800	100.0	1.8

Chi-square test (𝜒²) = 𝑃<0.0001. *> 2.576 (𝛼=0.01) adjusted residual chi-square.