| Questions | Gs SDSs | Gs NSDSs | Chi (P value) | |
| n (%) | n (%) | |||
| Do you have an idea of retained restorative systems in dental implants? | Yes | 85 (56.7%) | 88 (58.7%) | 0.123 (0.726) |
| No | 65 (43.3%) | 62 (41.3%) | ||
| What are the best aesthetically retained restorations in dental implants? | SRR | 54 (36%) | 57 (38%) | 8.4 (0.015*) |
| CRR | 82 (54.7%) | 73 (48.7%) | ||
| I don’t know | 14 (9.3%) | 20 (13.3%) | ||
| When the fracture resistance of an implant is necessary, which of the following retained restorations will be used? | SRR | 89 (59.3%) | 109 (72.7%) | 31.3 (<0.001**) |
| CRR | 61 (40.7%) | 41 (27.3%) | ||
| Which of the following is an important factor influencing the choice of implant-retaining restorations? | Aesthetics | 34 (22.7%) | 32 (21.3%) | 0.54 (0.462) |
| STH | 30 (20%) | 31 (20.7%) | ||
| CE | 17 (11.3%) | 20 (13.3%) | ||
| Retention | 20 (13.3%) | 21 (14%) | ||
| EF | 24 (16%) | 22 (14.7%) | ||
| RE | 25 (16.7%) | 24 (16%) | ||
| When implant retention is most required, what retained restoration is desirable? | SRR | 94 (62.7%) | 103 (68.7%) | 29.6 (<0.001**) |
| CRR | 56 (37.3%) | 47 (31.3%) | ||
| If we want to control the complications of peri-implant diseases, which of the following retained restoration should be used? | SRR | 71 (47.3%) | 84 (56%) | 14.2 (0.001**) |
| CRR | 79 (52.7%) | 66 (44%) | ||
| Which of the following implant-retained restoration is preferred, when ease of fabrication is important? | SRR | 67 (44.7%) | 41 (27.3%) | 9.8 (0.002*) |
| CRR | 83 (55.3%) | 109 (72.7%) | ||