Table 2 Safety of screw insertion classifications
Group | Grade 1 | Grade 2 | Grade 3 | Grade 4 | Grade 5 |
|---|---|---|---|---|---|
Group CBT0-3DP | 9 (90%) | 0 | 1 (10%) | 0 | 0 |
Group CBT0-CNC | 8 (80%) | 0 | 2 (20%) | 0 | 0 |
Group CBT0.7-3DP | 10 (100%) | 0 | 0 | 0 | 0 |
Group CBT0.7-CNC | 10 (100%) | 0 | 0 | 0 | 0 |
Total | 37 | 0 | 3 | 0 | 0 |