Table 5.
Distribution according to the Whyte and Boeddinghaus classification by number of cases and percentages.
| Whyte and Boeddinghaus Classification | RMS | LMS | ||
|---|---|---|---|---|
| No. Cases | % | No. Cases | % | |
| Without pathology | 72 | 26.1 | 73 | 26.4 |
| 1. Periapical pathology (non-vital tooth) | 37 | 13.4 | 34 | 12.3 |
| 2. Periodontitis | 80 | 28.9 | 81 | 29.3 |
| 3. Endo-periodontal pathology (1 + 2) |
39 | 14.1 | 35 | 12.6 |
| 4. Post-exo communication/fistula | 9 | 3.2 | 14 | 5.0 |
| 5. Sinus elevation | 6 | 2.2 | 11 | 3.9 |
| 6. Foreign bodies | 16 | 5.7 | 23 | 8.3 |
RMS, right maxillary sinus; LMS, left maxillary sinus