Table 2.
The incidence rates of each complication in the different groups (IAC = implant–abutment connection).
| IAC Design | Hexagonal IAC | Conical IAC | ||
|---|---|---|---|---|
| Group | H | C1 | C2 | C3 |
| Prevalence of implant fractures | 0 | 0 | 0 | 0 |
| Prevalence of abutment fractures | 0 | 0 | 0 | 0 |
| Prevalence of crack/deformation events | 0 | 0 | 0 | 0 |
| Prevalence of screw loosening events | 0 | 8 | 0 | 0 |
| Prevalence of crown–abutment decementations | 0 | 1 | 2 | 1 |
| Implant survival rates | 100% | 100% | ||
| Abutment survival rates | 100% | 100% | ||
| Overall survival rate | 100% | |||
H = implants with internal hexagonal connection; C1, C2, C3 = implants with internal conical connection.