Table 2 Summary of the participants (the number of participants)
| Periodontal background | Nonperiodontal background | |
|---|---|---|
| School (n) |
UMSOD (12) LLUSD (19) | UMSOD (33) |
| Composition (n) |
Faculty (13) PG residents (18) |
All PG residents: Advanced general dentistry (7) Prosthodontics (9) Endodontics (6) Orthodontics (11) |