Oral Biology Research

Table. 4.

Number of permanent teeth extracted by age

Age Reason Total

Caries Perio Impacted Prosth Ortho Fracture Trauma Others
<25 1,647 (23.6) 518 (7.4) 4,222 (60.5) 167 (2.4) 272 (3.9) 45 (0.6) 9 (0.1) 98 (1.4) 6,978 (100.0)
26−35 1,065 (28.6) 402 (10.8) 1,780 (47.8) 246 (6.6) 58 (1.6) 56 (1.5) 5 (0.1) 114 (3.1) 3,726 (100.0)
36−45 614 (23.5) 859 (32.9) 569 (21.8) 295 (11.3) 18 (0.7) 86 (3.3) 19 (0.7) 149 (5.7) 2,609 (100.0)
46−55 706 (19.4) 1,672 (45.9) 307 (8.4) 514 (14.1) 6 (0.2) 204 (5.6) 15 (0.4) 221 (6.1) 3,645 (100.0)
56−65 652 (17.1) 1,694 (44.3) 201 (5.3) 771 (20.2) 1 (0.0) 239 (6.3) 12 (0.3) 250 (6.5) 3,820 (100.0)
66−75 479 (15.8) 1,088 (35.8) 87 (2.9) 984 (32.4) 1 (0.0) 133 (4.4) 6 (0.2) 260 (8.6) 3,038 (100.0)
76< 254 (13.4) 539 (28.4) 23 (1.2) 806 (42.5) 0 (0.0) 57 (3.0) 0 (0.0) 219 (11.5) 1,898 (100.0)
p-value <0.001*

Values are presented as number (%).

*Chi-square is used to evaluate the statistical significance between the age and reason groups.

Oral Biol Res 2021;45:1~6 https://doi.org/10.21851/obr.45.01.202103.1
© Oral Biol Res