Table 2.
Etiology of maxillary sinusitis
| Causes | Patient |
|---|---|
| 1. Implantation | |
| a. Implant placement | 4 (19.0%) |
| b. Fixture removal | 2 (9.50%) |
| c. Peri-implantitis | 1 (4.76%) |
| 2. Tooth extraction | 5 (23.8%) |
| 3. Bone graft | 7 (33.33%) |
| 4. Others | 2 (9.52%) |
| Total | 21 |
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