Groups patients | Group 1: 27 subjects aged 15 - 27 years | Group 2: 72 subjects aged 28 - 42 years | Group 3: 129 subjects aged 43 - 57 years | Group 4: 67 subjects aged 58 - 75 years | ||||||||||
| Teeth | Teeth | Teeth | Teeth | ||||||||||
| Examined (%)* | NCCLs (%)+ | WF NCCLs (%)§ | Examined (%)* | NCCLs (%)+ | WF NCCLs (%)§ | Examined (%)* | NCCLs (%)+ | WF NCCLs (%)§ | Examined (%)* | NCCLs (%)+ | WF NCCLs (%)§ | ||
Maxillary incisors | 105 (11) | 2 (2) | 0 | 241 (25) | 20 (8) | 11 (55) | 434 (45) | 43 (10) | 36 (84) | 186 (19) | 35 (19) | 31 (89) | ||
Mandibular incisors | 103 (11) | 3 (3) | 1 (33) | 246 (25) | 24 (10) | 14 (58) | 427 (44) | 56 (13) | 47 (84) | 179 (18) | 38 (21) | 33 (87) | ||
Maxillary canines | 51 (10) | 3 (6) | 1 (33) | 121 (25) | 19 (18) | 10 (53) | 231 (49) | 37 (16) | 31 (84) | 93 (19) | 25 (27) | 22 (88) | ||
Mandibular canines | 52 (11) | 3 (6) | 0 | 123 (24) | 22 (18) | 13 (59) | 227 (46) | 31 (14) | 26 (81) | 91 (19) | 21 (23) | 17 (81) | ||
Maxillary premolars | 102 (10) | 2 (2) | 0 | 241 (25) | 33 (14) | 22 (67) | 456 (46) | 47 (10) | 39 (83) | 181 (19) | 57 (32) | 51 (89) | ||
Mandibular premolars | 104 (11) | 3 (3) | 1 (33) | 237 (25) | 27 (11) | 19 (70) | 447 (47) | 43 (10) | 37 (86) | 173 (18) | 45 (26) | 41 (91) | ||
Maxillary Molars | 95 (10) | 0 | 0 | 227 (26) | 12 (5) | 7 (52) | 397 (45) | 31 (8) | 21 (68) | 168 (19) | 42 (29) | 36 (86) | ||
Mandibular molars | 98 (11) | 2 (2) | 0 | 231 (26) | 15 (7) | 8 (53) | 391 (44) | 29 (7) | 23 (79) | 171 (19) | 31 (18) | 25 (81) | ||
T Test |
| p = 0.0002 |
| p = 0.006 |
| p = 0.06 |
| p = 0.20 | ||||||
Total teeth | 710 | 18 | 3 | 1667 | 172 | 104 | 3010 | 317 | 260 | 1242 | 294 | 256 | ||
Median percentage | 10.6 | 3 | 12.4 | 25 | 11.4 | 58.4 | 45.8 | 11 | 81 | 18.7 | 24.4 | 86.5 | ||