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Frequency distribution and proportion of impacted mandibular 3rd molar as per its relation to ramus and age groups
| Class | Age group | Number of impacted mandibular teeth | Total n (%) of impacted mandibular teeth | P |
|---|---|---|---|---|
| I | 21-30 | 21 | 26 (9.12) | 0.0000 |
| 31-40 | 5 | |||
| II | 21-30 | 146 | 184 (64.56) | |
| 31-40 | 38 | |||
| III | 21-30 | 64 | 75 (26.32) | |
| 31-40 | 11 | |||
| Total | 285 | 285 (100) |
