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Table 3 Distribution of total number of teeth, teeth with AP, ET and AP/ET according to the age group

From: Prevalence of apical periodontitis and endodontic treatment in a Kosovar adult population

Age group No of teeth Teeth with AP (%) Teeth with ET (%)* Teeth w. AP/ET (%)**
< 20 408 30 (7.4%) 5 (1.2%) 2 (40.0%)
20-29 1007 98 (9.7%) 30 (3.0%) 15 (50.0%)
30-39 1584 181 (11.4%) 37 (2.3%) 16 (43.2%)
40-49 594 94 (15.8%) 16 (2.7%) 9 (56.3%)
50-59 340 66 (19.4%) 2 (0.6%) -
≥ 60 198 40 (20.2%) 5 (2.5%) 2 (40.0%)
Total 4131 509 (12.3%) 95 (2.3%) 44 (46.3%)
  1. *P < 0.01, **P < 0.001.
  2. AP, apical periodontitis; ET, endodontically treated teeth; AP/ET, apical periodontitis in endodontically treated teeth