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

Table 1

Data collected for the study in different years.

Years	Subjects (number)	Teeth (number)	Mean number of teeth per subject
1999	138	274	2.0
2000	151	239	1.6
2001	127	235	1.9
2002	23	52	2.3
Total	439	800	1.8