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Characteristics of root cap–retained overdentures (RODs)
| Overdenture characteristics | n | % | |
|---|---|---|---|
| RODs | Maxilla | 73 | 57 |
| Mandible | 55 | 43 | |
| Abutment tooth with post and core | Day of delivery | 280 | 100 |
| Day of examination | 253 | 90.4 | |
| Type of attachment | Cylindrical | 20 | 7.9 |
| Ball | 229 | 91.5 | |
| Other | 4 | 1.6 | |
| ROD design | Open | 29 | 22.7 |
| Closed | 99 | 77.3 | |
| Root caps in situ (years) | Min. | 3.0 | - |
| Max. | 14.9 | - |
