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Screw loosening according to arch and position
| Screw loosening | χ2 | P-value | |||
|---|---|---|---|---|---|
|
| |||||
| No | Yes | ||||
| Arch | Maxilla | 878 (92.5) | 71 (7.5) | 0.207 | 0.649 |
| Mandible | 911 (93.1) | 68 (6.9) | |||
| Position | Anterior | 309 (93.1) | 23 (6.9) | 10.500 | 0.005* |
| Premolar | 407 (96.2) | 16 (3.8) | |||
| Molar | 1,073 (91.5) | 100 (8.5) | |||
P<0.05.
Values are presented as number of implants (%).
