Table 3.
Individual testing profiles, their levels of aggressiveness, fatigue lifetime, and status of implant specimens
| Load profile | Aggressiveness | Number of Specimens using this profile* | Load amplitude | Cycles | Status (Failed or Suspended) |
|---|---|---|---|---|---|
| 1 | Most | 2 | 1 N increase in every 1,800 cycles Testing load = Initial load + testing cycles/1,800 | 495,956 | F |
| 492,821 | F | ||||
| 2 | Second | 3 | 1 N increase in every 5,000 cycles Testing load = Initial load + testing cycles/5,000 | 1,314,210 | F |
| 1,251,674 | F | ||||
| 1,358,568 | S | ||||
| 3 | Third | 3 | 1 N increase in every 6,600 cycles Testing load = Initial load + testing cycles/6,600 | 2,040,350 | F |
| 1,671,143 | F | ||||
| 405,614 | F | ||||
| 4 | Least | 4 | 1 N increase in every 10,000 cycles Testing load = Initial load + testing cycles/10,000 | 2,388,383 | F |
| 2,190,996 | F | ||||
| 2,493,513 | F | ||||
| 1,836,838 | F | ||||
| 5 | Constant stress | 1 | 200 N for first 1,000,000 cycles and then 250 N until fracture | 1,543,160 | F |
| 6 | Constant stress | 1 | 250 N for 53,195 cycles (premature failure**) | 53,195 | S |
*
One specimen failed prematurely due to machine/operator errors at the beginning of the test.
**
One specimen failed prematurely due to machine/operator errors. However it was tested for 53,195 cycles before fracture therefore was treated as a suspended data point in the statistical analysis.