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Biological and technical complications for single crowns
| Complication | Frequency | (%) |
|---|---|---|
| Loss of retention | 103 | 9.9 |
| Recurrent caries | 89 | 8.6 |
| Tooth loss | 75 | 7.2 |
| Periapical destruction | 61 | 5.9 |
| Loss of vitality | 48 | 4.6 |
| Tooth fracture | 29 | 2.8 |
| Mobility | 28 | 2.7 |
| Bone loss | 19 | 1.8 |
| Chipping | 19 | 1.8 |
| Framework fracture | 5 | 0.5 |
