pISSN 1225-388X
eISSN 2093-7784
Mean numbers of fissure-sealed permanent teeth
| Age (yr) | Hapcheon in 2000 | Hapcheon in 2018 | ||||||
|---|---|---|---|---|---|---|---|---|
| N | Mean | SE | N | Mean | SE | |||
| Total | 671 | 2.24 | 2.62 | 359 | 1.38 | 1.51 | <0.001 | |
| 8 | 213 | 1.90 | 1.20 | 95 | 1.58 | 1.43 | 0.057 | |
| 10 | 198 | 5.06 | 2.73 | 146 | 1.42 | 1.50 | <0.001 | |
| 12 | 260 | 0.36 | 1.10 | 118 | 1.18 | 1.57 | <0.001 | |
*Independent samples t-test.